Product Guide. CSD 180 Issue 10 July 2012

Transcription

1 2012 PRODUCT GUIDE

2 Product Guide CSD 180 Issue 10 July 2012 Cantor + Nissel Limited Market Place Brackley Northampton NN13 7NN UK Tel: +44 (0) Fax: +44 (0) [email protected] CSD.180 Issue 10 July

3 Contents Company Profile... 1 Enquireies, Ordering, Delivery and Accounts... 2 Single Use Trial Lenses Days... 5 Bandage Lenses... 7 New Bellina and New Fabula Cosmetic Lenses... 8 Cantor Prosthetics ChromaGen TM Concept EV Aberration Controlled Lenses Extreme H 2 O Hand Painted Lenses Hydrocyl Soft Torics Hydrofit Hydrolens Nissel Nissel Keratoconus II soft Pastel Tints PV Series Multifocal Soft Lenses Thames Design Veterinary Lenses X-Chrom Material Available Size Chart Benz Material Available Size Chart Material Available Size Chart Material Available Size Chart SiH Material Available Size Chart Material Available Size Chart... 41

4 Apex Lenses Aqualine MF Series Aquasil / Aquaperm Bifocal RGP Lenses Evolution RGP High Performance RGP Materials Keratoconus RGP Lenses Nissel Keratoconus II Rigid MetrO Oxyflex Oxyflex 4F RGP Materials Toric RGP Lenses Planned Replacement Programmes Lensplan Prostheses, Scleral Lenses, Animations and Special Effects Presbyopic Fitting Guide CSD.180 Issue 10 July

5 Company Profile Company Profile CANTOR + NISSEL: LEADERS IN THEIR FIELD David Cantor founded the original company in 1964 and the Cantor & Silver partnership was created in 1973 when he incorporated his business with that of Leslie Silver. A limited company was formed in 1975 and relocated in Brackley, Northamptonshire. During the 80s and 90s Cantor & Silver Limited acquired several companies: Focus Contact Lenses Limited, CLM (Contact Lenses) Limited, Speciality Contact Lenses Limited and Cambridge Precision Limited. In August 2000, Cantor & Silver Limited acquired Nissel Limited and changed its name to Cantor + Nissel Limited to reflect the incorporation of the Nissel range of products. Cantor + Nissel Limited is the largest independent contact lens manufacturing company in Europe and it has distributors in most European countries. The company exports its finished lenses and artificial eyes widely, with Cantor + Nissel products being prescribed by eyecare practitioners in over 60 countries worldwide. The company has a history of innovation and leading edge product development; its independence enables it to respond promptly to the specific needs and expectations of its customers. Cantor + Nissel Limited is renowned for its comprehensive range of high quality products and its superb standards of service. The company was awarded the CE mark in Cantor + Nissel Limited Market Place BRACKLEY Northamptonshire NN13 7NN UK Tel: +44 (0) Fax: +44 (0) [email protected] 1 CSD.180 Issue 10 January 2012

6 Enquiries, Ordering, Delivery and Accounts Enquireies, Ordering, Delivery and Accounts Placing orders: By Post Cantor + Nissel Limited Market Place Brackley Northampton NN13 7NN By Telephone Please have your account number ready +44 (0) Monday Friday 9.00am to 5.00pm 24-hour answering service By Fax +44 (0) By [email protected] Online Register with Cantor and Nissel for our online ordering facility and be able to order the following lenses via our website; Cantor Prosthetic Hydrocyl Hydrofit Hydrolens Hand Painted The online forms with their drop down menus allow you to order lenses without the need to refer to any size or colour charts. Delivery Soft lenses are supplied from stock whenever possible. Lenses that have to be manufactured to prescription are generally despatched within 7-10 working days (10-14 for tinted lenses). Rigid lenses are despatched within 5-7 days of receipt of order, unless requested sooner. Urgent orders received by letter, telephone, fax or will be despatched the same day whenever possible. Please send urgent orders as early as possible in the day. CSD.180 Issue 10 July

7 Enquiries, Ordering, Delivery and Accounts Modifications to Rigid Lenses Adjustment to rigid lenses are carried out and despatched within three days of receipt at our offices. Records Full records of each case, including subsequent replacements and modifications, are retained. When requesting replacements, it is essential to quote the original order number. CE mark regulations require orders to be retained for a period of 5 years. Enquiries Please have your order number ready For basic enquires such as Delivery, Pricing (only available with a valid account number) please call +44 (0) or contact [email protected] Professional Services A consultant is available to assist with technical queries by post or telephone. Special diagnostic sets or loan lenses are available on request. Please select Option 2 from the phone menu when calling. Accounts Invoices are prepared daily. A statement of account is sent monthly. We ask that our customers pay by statement within 25 days of the date of the statement. Please select Option 4 from the phone menu when calling. Terms and Conditions A copy of the company s terms and conditions are available on request. 3 CSD.180 Issue 10 January 2012

8 Single Use Trial lenses Single Use Trial Lenses The 'remote theoretical risk' of transmitting vcjd through contact lenses created something of a dilemma among practitioners used to relying on diagnostic lenses in order to assess best fit and prescription for a potential rigid lens patient. It also created a resistance to prescribe a product that could not first be tried when tolerance and suitability are so critical. The Cantor & Nissel initiative to supply single-use trial sets in PMMA to a practitioner's preferred design has ensured consistency - and even an upsurge - in the RGP market. Our free trial set policy means that the busy practitioner can continue to perform trials as before, but with single-use lenses. These can be promoted as a benefit - presented to the patient in sterile, sealed, condition and disposed of after use. Each set is accompanied by a supply of re-order forms for replacement of the single-use lenses as they are disposed of. Our RGP lenses all carry the right to up to two free exchanges if required and there is a 75% credit if the patient eventually discontinues. The single-use trial set does, however, largely remove the risk of eventual incompatibility. Single-use trial sets are supplied principally in our market-leading Oxyflex 4F and Metr0 2 designs ex-stock. They can also be produced for you in the traditional Percon design or in any design of your choice which we will then be pleased to reproduce for you for your Rx requirements. Apply now for your free single-use trial set and continue to fit RGP Patients with confidence. CSD.180 Issue 10 July

9 30 Days 55% water content monthly disposable soft lenses for daily wear 30 Days Lens Design and Material 30 Days is a high specification 55% monthly disposable soft lens which will fit most of the soft lens patients presenting to an average contact lens practice. 30 Days features a Bicurve back surface and a complex Tricurve front surface which provides a carefully controlled thickness profile to maintain healthy eyes during wear. 30 Days lenses are produced by a sophisticated liquid edge moulding process. Product features Visibility tint for ease of handling Sample lenses are available for trials 5 CSD.180 Issue 10 January 2012

10 30 Days Technical Information Base Curve (mm) Minus Power 8.60 Plus Power 8.80 Power Range Diameter (mm) D to -6.00D in 0.25D steps -6.00D to -8.00D in 0.50D steps +0.25D to +5.00D in 0.25D steps +5.00D to +8.00D in 0.50D steps 0.07mm Standard 55% Ocufilcon D Centre Thickness at -3.00D Visibility Tint Material ISO Material Classification Ocufilcon D II 2 Permeability (Dk) 16 x (cm 2 /s) [ml O 2 /(ml. mmhg)] Package Blister pack Supplied in Packs of 6 for 6 months supply CSD.180 Issue 10 July

11 Bandage Lenses A range of hydrogel lenses for use as bandage lenses in hospitals Bandage Lenses Using our Hydrolens design these lenses have wide applications in the hospital environment. Each bandage lens is individually inspected to ensure quality and accuracy, as well as being engraved NISSEL BANDAGE on the circumference. Bandage lenses Base Curve (mm) Diameter (mm) Please refer to the Hydrolens 67 section on this manual for available sizes Power Plano Available To Order As Hydrolens Benz Bandage Hydrolens 67 Bandage Hydrolens SiH Bandage Sizes and materials are dependent on Sagital depth and final thickness Afocal Bandage lenses Base Curve (mm) Diameter (mm) 8.40, Available To Order As Hydrolens 67 Afocal Bandage 7 CSD.180 Issue 10 January 2012

12 New Bellina New Fabula Cosmetic Lenses Frequent replacement opaque cosmetic soft contact lenses New Bellina and New Fabula Cosmetic Lenses Cantor + Nissel have used their unrivalled expertise in hand painted and prosthetic contact lenses to develop two outstanding cosmetic lens designs available in plano and powered forms on a quarterly replacement basis. New Fabula lenses are a two colour composition based on the results of a specialist design programme to develop a natural iris pattern. This iris pattern is available in six carefully selected colours. New Bellina lenses include an additional limbal ring to further improve the appearance of the lens. This advanced three-colour technique provides enhanced depth and definition offering greater realism and a natural look. Three Colour Design Two Colour Design Ice Blue Chestnut Brown Moss Green Glacier Blue Pacific Blue Violet Cedar Brown Sapphire Blue Leaf Green Slate Grey Smokey Soft Lilac CSD.180 Issue 10 July

13 New Bellina New Fabula Cosmetic Lenses Availability and delivery Plano lenses are available from stock. Powered lenses are made to order which normally takes approximately 10 working days. Cantor + Nissel staff can advise on suitable colours. A set of twelve plano colour reference lenses can be supplied to order. Lenses are moulded; there is a recommendation that they are replaced every three to six months. Standard Lenses Base Curve (mm) Diameter (mm) Power -6.00D to +4.00D in 0.25D steps Visible Iris Diameter (mm) Open Pupil Diameter (mm) CSD.180 Issue 10 January 2012

14 Cantor Prosthetics Prosthetic soft lenses with nearphotographic quality iris detail Cantor Prosthetics Cantor Prosthetic soft lenses, formerly Cooper Prosthetic, are now made and distributed worldwide by Cantor + Nissel. These high quality prosthetic lenses can disguise Corneal Scars, Congenital Coloboma, Aniridia and Traumatic Iridoplegia. They feature a patented chemistry which creates a glossy, smooth front surface and utilise computer generated colour reproducibility for consistency of continued replacements. Lens Geometry and Material Base Curve (mm) Diameter (mm) 8.00, 8.20, 8.40, 8.60, 8.80, 9.00, 9.20, , 13.50, 14.00, 14.50, Power D to D in 0.25D steps Open Pupil Diameter (mm) 4.50 Closed Pupil Diameter (mm) 3.50, 4.00, 4.50, 5.00 Visible Iris Diameter (mm) Occlusive Pupil Size (mm) 3.50, 4.00, 4.50, 5.00, 5.50, 6.00, , 8.00, 9.00, 10.00, 11.00, Material 38% PolyHema Permeability (Dk) 8.4 x Toric lenses are also available to order, please contact us for more information When placing your order please use the designated colour number and design code. Colour Number Colour Number Colour Number Colour Number / CC Clear Backing Closed Pupil / CO Clear Backing Open Pupil / BC Black Backing Closed Pupil / BO Black Backing Open Pupil Cantor Prosthetics are available to order online for registered users of the website ordering facility. Please contact our offices if you are an account holder and would like to register. Trial sets are available free of charge, with replacement lenses available for a reduced cost. CSD.180 Issue 10 July

15 Cantor Prosthetics Occlusive Images shown are Black Backed Closed Pupils (BC) and are for representational purposes only. Colour matching should not be made with these images. Please request a free trial set. 11 CSD.180 Issue 10 January 2012

16 ChromaGen TM A range of daily wear soft lenses designed to improve colour discrimination ChromaGen TM Lens design Colour blindness is a condition affecting 0.5 per cent of women and eight per cent of men. The ChromaGen TM lens is tinted to allow the brain to perceive images differently, enabling the patient to discriminate between colours which they could not normally see. Most people need only one lens to help their colour vision. Product features Can make a big difference to those patients who are colour defective Full information pack available; please call for details Used to assist patients with ASD (Academic Skills Disorder) such as dyslexia Diagnostic sets A product-specific diagnostic set is essential. Services (Option 2 on the phone menu) for details. Please call professional Spectacle lenses Spectacle lenses, which can be plano or corrected, are available fitted or in uncuts in the full range of colours. A mirror coating is available at an additional charge if required. CSD.180 Issue 10 July

17 ChromaGen TM Lens geometry and material Base Curve (mm) Diameter (mm) 8.40, 8.60, , 14.00, 14.50, Power Range D to D in 0.25D steps Pupil Sizes (mm) 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7 Colour Tints Violet, Magenta, Orange, Yellow Aqua, Green, Pink, Blue Material 59% Hioxifilcon A ISO Material Classification Filcon II 2 Permeability (Dk) 22 x Fatt 35 o C 13 CSD.180 Issue 10 January 2012

18 Concept 60 High water content aberration controlled soft lenses Concept 60 Please order Hydrolens Benz with EV (59% Water Content) CSD.180 Issue 10 July

19 EV aberration controlled lenses Hydrogel lens with aberrationcontrolled optics to provide enhanced vision EV Aberration Controlled Lenses The Cantor + Nissel EV is an aberration controlled single vision soft enhancement that provides clear, sharp and consistent vision both near and far especially under adverse conditions of light and contrast. EV can provide improved vision for people with low levels of astigmatism. The aberration controlled optics of EV can aid the marginal Presbyope. With traditional spherical designs, light rays converge to a circle of confusion EV aberration controlled optics focuses light better to a common focal point 15 CSD.180 Issue 10 January 2012

20 EV aberration controlled lenses Technical Information Available on all soft designs and materials Please refer to our size charts (pages 36-41) for available base curves and diameters. CSD.180 Issue 10 July

21 Extreme H 2 O A premium monthly disposable lens range Extreme H 2 O Day long comfort from a lens that will not dry on the eye The monthly disposable Extreme H 2 O lens, available through Cantor + Nissel, is the soft lens of choice for patients who work in demanding environments. Extreme H 2 O lenses dehydrate 5 times more slowly than Hema lenses and rehydrate 5 times more quickly. Extreme H 2 O lenses are therefore ideal for patients who suffer from dry eye conditions, have a low blink rate or who work in air-conditioned or other dry environments. Benefits of Extreme H 2 O lenses: Day-long comfort Will not dry out on the eye Particularly suited for computer users Should be the first-choice daily wear Hydrogel for patients with dry eyes 17 CSD.180 Issue 10 January 2012

22 Extreme H 2 O Technical Information Centre 0.08mm Material 59% Hioxifilcon A ISO Material Classification Hioxifilcon A II 2 Permeability (Dk) 21 x (cm 2 /s) [ml O 2 /(ml. mmhg)] Package Blister pack Supplied in Packs of 6 for 6 months supply CSD.180 Issue 10 July

23 Extreme H 2 O Extreme H 2 O Thin Base Curve (mm) Diameter (mm) Power Range -6.00D to +6.00D in 0.25D steps -6.00D to -8.00D in 0.50D steps Extreme H 2 O Xtra Base Curve (mm) Diameter (mm) 8.30, Power Range 8.30 (Steep) -0.25D to -6.00D in 0.25D steps -6.00D to -8.00D in 0.50D steps Power Range D to +6.00D in 0.25D steps -6.00D to D in 0.50D steps Extreme 54% Base Curve (mm) Diameter (mm) Power Range D to +6.00D in 0.25D steps -6.00D to D in 0.50D steps Power Range D to -6.00D in 0.25D steps Extreme 54% Toric Base Curve (mm) Diameter (mm) Power Range Low Cyl Plano to -6.00D in 0.25D steps Axis 30, 60, 90, 120, 150, 180 Power Range Med Cyl Plano to -6.00D in 0.25D steps Axis 10, 20, 80, 90, 100, 160, 170, CSD.180 Issue 10 January 2012

24 Hand Painted Lenses High water content lenses, hand painted to produce colour matches prosthetic or special effects Hand Painted Lenses Fitting and parameters Any combination of parameters and powers can be manufactured, including Toric lenses. Lenses can be made up to 22.00mm diameter and can be stabilised if a non-radially symmetrical effect is required. Colour details Photographs, iris buttons, prostheses or artwork can be copied. Clear pupils Clear pupils are available in any diameter. Because the opaque is throughout the thickness of the lens, there may be some glare when very small pupils are requested (particularly with high plus prescriptions). This may be resolved by adding a black annulus around the pupil. This may also improve cosmesis. Black pupils Occlusive black pupils are available in any diameter. Because the black pupil is added to the front of the lens, a larger than expected pupil may be required to get good occlusion. If this is not cosmetically acceptable, it is possible to paint an opaque patch matching the iris around a smaller pupil to achieve occlusion. Opaquing The colours that are used are transparent and on most eyes require a white salt that is precipitated within the lens matrix to be effective. This is slightly translucent and the apparent colour of the lens will be affected by the colour of the eye; the same lens will appear darker on an Aniridic eye than when worn on a light, scarred cornea. Please indicate the condition of the eye on which the lens is to be worn. It is sometimes possible to use lenses with no opaque when fitting totally white corneas. Fading colours is not usually a problem with these lenses but there is a small percentage of patients whose tears may remove the opacity from the lens. If this happens, the lenses can be re-opaqued for a nominal charge but it is possible that the problem will recur. A thicker lens may reduce the loss of opaque material. CSD.180 Issue 10 July

25 Hand Painted Lenses Colour adjustments Although every attempt is made to be accurate, it is not always possible to exactly reproduce the required colour. If a lens is not acceptable, it may be returned and we will attempt to adjust the colour. Offset lenses Strabismus can be masked by using a large stabilised lens with the iris painted eccentrically and the scleral portion opaqued, coloured and veined. (A separate information sheet is available on this.) Special effect lenses Lenses can be produced for special effects for photography, film and television. Reproducibility Each lens is individually produced and we cannot guarantee exact duplication. It is possible to create a photographic record of the lens and this can assist when reordering lenses; a digital image is retained in the studio and a print is despatched with the finished lens. By using the reference number included in the print when reordering we are able to access all the details of the lens. A charge is made for this service which also covers any subsequent photographs of lens adjustments. Delivery Lenses are normally despatched days from receipt of order. Lenses that require special designs may take a little longer. It is sometimes possible to make lenses more quickly, however these rush orders attract a surcharge of 30%. Additional information If you require further information on hand painted or special effect lenses or an iris identification poster please contact our office or studio. 21 CSD.180 Issue 10 January 2012

26 Hydrocyl A premium range of prescription soft Torics, available in a choice of water contents Hydrocyl Soft Torics Lens design and material Hydrocyl is a unique range of Toric soft lenses, combining design, material options and manufacturing technology to provide the busy practitioner with a high performance premium product. Hydrocyl lenses are easy to fit, straightforward to order and designed to be extremely comfortable to wear. Hydrocyl lens design has been optimised for comfort and stability; lenses are produced by a precision, computer controlled manufacturing process. Product features Dynamic stabilisation using differential thinning Back surface Toric for maximum stability Prism-free ultra-thin optic zone Inferior lid interaction to provide stable orientation Thin, tapered, uniform edge profile CSD.180 Issue 10 July

27 Hydrocyl Soft Toric Technical Information Base Curve (mm) Diameter (mm) See material chart for available parameters Power Range D to D in 0.25D steps Axis Direction 1 o to 180 o in 5 o steps Available To Order As Hydrocyl 38 Hydrocyl Benz Hydrocyl 60 Hydrocyl 67 Hydrocyl SiH See material chart for details Ordering To order, simply provide details of the patient s Keratometry and spectacle Rx. 23 CSD.180 Issue 10 January 2012

28 Hydrofit A high performance contact lens for daily wear Hydrofit Hydrofit lenses are designed to be the ideal lens for Aphakic and High Myopic prescriptions as well as being suitable for those patients in every practice who need a lens that allows them freedom of a flexible wearing schedule. Hydrofit offers the convenience of daily or flexile wear without compromising corneal health, visual acuity or comfort. With a minimum thickness profile to maximise oxygen delivery while remaining viable for handling, Hydrofit should be the first choice lens for practitioners and hospitals where there is a need to deliver more oxygen to the cornea. The lenses are manufactured on computer controlled lathes ensuring excellent reproducibility. Hydrofit has a wide parameter range offering practitioners a choice of three diameters to ensure the best possible fitting characteristics for the individual patient. Product features Available in a range of pastel tints to enhance eye colour Visibility tints available Opaque tints available to change eye colour, 67% material only Base curve (mm) Diameter (mm) 7.50, 7.80, , 8.40, , 8.80, Power Range D to D in 0.25D steps Centre 38% 14.50mm -3.00D = 0.12mm Available To Order As Hydrofit 38 Hydrofit Benz Hydrofit 60 Hydrofit 67 See material chart for details CSD.180 Issue 10 July

29 Hydrolens A soft contact lens for daily wear, available in a comprehensive parameter range Hydrolens Hydrolens is manufactured to ensure a strong, clear lens which resists discolouration. Sometimes patients will need soft lenses which are outside the range of stock parameters; high powers, large or small diameters and steep or flat base curves. A graduated aspheric lenticular zone ensures minimum overall thickness in any power. Every prescription is optimised for handling characteristics and oxygen transmissibility using a computerised lens design facility. Computer controlled lathes are used for both back and front surface production to ensure excellent reproducibility Product features Diameters from 11.00mm to 20.00mm, see material chart Any power available in each diameter, see material chart Available in a range of pastel tints to enhance eye colour Visibility tint available Opaque tints available to change eye colour, 67% material only Base curve (mm) Diameter (mm) See material charts for available parameters or call for availability of custom design parameters Power Range D to D in 0.25D steps Centre 38% 14.50mm -3.00D = 0.18mm Available To Order As Hydrolens 38 Hydrolens Benz Hydrolens 60 Hydrolens 67 Hydrolens SiH *Hydrolens 77 Hydrolens Benz Bandage Hydrolens 67 Bandage Hydrolens SiH Bandage See material chart for details *For Incanto 78 or lenses with an extreme Sagital depth that are outside of the Hydrolens 67 design parameters. Hydrolens 77 may also be substituted for Hydrolens 67 due to material manufacturer s batch / swell factor variations. 25 CSD.180 Issue 10 January 2012

30 Nissel 55 Nissel 55 As a direct replacement for the CooperVision Tints range we are offering our own lathe cut 60% material, tinted using our own high quality dyes and have appropriately named this new range the Nissel 55. Base curve (mm) Diameter (mm) 8.40, , Power Range -8.00D to +8.00D in 0.25D steps Available To Order As Nissel 55 Available Tints Aqua Blue Green Hazel CSD.180 Issue 10 July

31 Nissel Keratoconus II Soft 3-Monthly soft lenses for keratoconus, post-cxl and post-graft corneas Nissel Keratoconus II soft The Nissel Keratoconus II Soft lens is designed to fit Keratoconus and irregular corneas. In most cases, it is expected that the prescription lens will be a toric so the trial lenses are presented with toric stabilization. Manufactured from a 58% water content GMA material, the Nissel Keratoconus II Soft provides excellent oxygen permeability and exceptional wearing comfort for keratoconus and post-graft patients. The front surface is aspheric, calculated to provide the clearest possible vision for each patient. The fitting system has been designed so that the on eye characteristics of the trial lenses match the prescription lenses as closely as possible. The Nissel Keratoconus II Soft trial lenses are designed with dynamic stabilization and have a range of powers to allow diagnostic evaluation with a power as close as possible to the final prescription. Orientation marks are at 12 and 6 o clock. The location of the trial lens mark is important and must be noted when a toric is ordered, as it affects the axis direction of the final lens. When ordering, please provide Cantor + Nissel with the following information: Base curve (BOZR) and power of trial lens used Location of the orientation mark(s) Over refraction and back vertex distance Horizontal visible iris diameter (HVID) 27 CSD.180 Issue 10 January 2012

32 Nissel Keratoconus II Soft Technical Information BOZR (mm) Total Diameter (mm) Power K Readings and Less than and to and to and Plano 6.80 to 7.20 Nissel Keratoconus II Soft Trial Set All trial lenses are stabilised using the same design as the likely prescription lens. All trial lenses have orientation marks to enable the practitioner to evaluate the orientation of the lens when it has been stabilised on the eye. Ideal fitting characteristics After the lens has been in the eye for a period of 5 to 10 minutes, the following should be observed in an ideally fitting lens: If bubbles form under the lens on insertion, these should settle within 2 to 3 minutes There should be vertical movement of approximately 1.00mm after a blink The lens should have fast positive return to the central position after manual displacement The orientation mark should be vertical for an ideal fit A full fitting guide is available from Cantor + Nissel; for help in individual cases please contact out Professional Services team. CSD.180 Issue 10 July

33 Pastel Tints Prescription or stock lenses in 38, 55 and 67 materials available in a range of eye-flattering cosmetic tints Pastel Tints Cosmetic enhancement or colour change Pastel tints will enhance the colour of light eyes but will have no effect on a dark coloured iris. They are particularly popular in countries where light coloured eyes can be made a stunning shade of blue, aquamarine, violet, green or brown. Pastel tints can be applied to both iris and pupil areas. It is recommended that the pupil area is tinted as well as the iris because on occasion a ghost image may be noticed by the patient when the clear central zone is smaller than the pupil size. Clear pupils can be supplied if required. Pastel tints can be combined with an opaque backing in 67% water content material only to provide cosmetic lenses which will change the colour of an eye. A black pupil is also available in 67 material. Standard pastel tint features coloured pupil and iris Clear pupil is available to order Black pupils are available to order Opaque tints are available to order on 67% water content lenses Product features Available in 38, Benz, 60, 67 and SiH Opaque tints available on 67 material Sample tints Please call our professional services department for information 29 CSD.180 Issue 10 January 2012

34 Pastel Tints Colour zone dimensions (mm) Iris diameter 10.00, 10.50, 11.00, 11.50, 12.00, 12.50, Clear pupil diameter 2.00, 2.50, 3.00, 3.50, 4.00, 4.50, 5.00, 6.00 Black pupil diameter 2.50, 3.00, 3.50, 4.00, 4.50, 5.00, 6.00, 7.00, 8.00, 9.00 Black pupils with a diameter larger than 9mm may be available to order. Please contact out offices for more information Colour availability Colour SiH Blue 1 Blue 2 Blue 3 Blue 4 Blue 5 Aqua 1 Aqua 2 Aqua 3 Apple Green 1 Apple Green 2 Apple Green 3 Violet 1 Violet 2 Violet 3 Brown 1 Brown 2 Brown 3 Brown 4 Brown 5 Brown 6 Brown 7 Brown 8 Grey 1 Grey 2 Grey 3 Grey 4 Grey 5 Grey 6 CSD.180 Issue 10 July

35 PV Series Multifocal Soft Lenses A 38 soft lens for bifocal wearers designed to correct vision for distance, intermediate and near PV Series Multifocal Soft Lenses The Cantor + Nissel PV series is a range of centre-near simultaneous vision multifocal enhancement designed to provide vision correction for the Presbyope throughout the range of fixation from all points near too far. Patients will see at all angles of gaze and most patients will not experience loss of vision at night. Technical Information Available on Hydrofit and Hydrolens soft designs and materials Please refer to our size charts (pages 36-41) for available base curves and diameters. 31 CSD.180 Issue 10 January 2012

36 Thames Design Designed to be a comparable replacement for the discontinued CooperVision Solaire range Thames Design Due to the popularity of the Solaire range, Cantor and Nissel have invested in producing a comparable lens to the discontinued product. The lens is based around our successful lathe cut Hydrolens design making it more durable and able to offer a wider range of parameters. Technical Information Base curve (mm) Diameter (mm) See 67 material chart for available parameters or call for availability of custom design parameters Power Range Centre Thickness (wet) D to D in 0.25D steps All Minus powers = 0.14mm All plus powers 0.05 thinner than standard To aid you in your colour selection we have produced the table below: CooperVision Cantor Pastel Tint 20% Thames Brown 1 35% Thames Brown 2 50% Thames Brown 3 70% Thames Brown 4 90% Thames Brown 5 *For lenses with an extreme Sagital depth that are outside of the Hydrolens 67 design parameters. Hydrolens 77 may also be substituted for Hydrolens 67 due to material manufacturer s batch / swell factor variations. CSD.180 Issue 10 July

37 Veterinary Lenses Soft contact lenses for use with animals during veterinary procedures Veterinary Lenses Cantor + Nissel design and manufacture custom soft contact lenses for use on animals including Bovine, Canine, Equine, Feline, Birds of Prey, and Big Cats in the course of veterinary treatment for a variety of eye related problems. The exclusive worldwide distributors of the lenses are Veterinary Speciality Products of Cheshire. For more information, please call. 33 CSD.180 Issue 10 January 2012

38 X-Chrom A colour filter 67% water content soft lens intended to improve colour discrimination when worn by people who have a red-green colour deficiency X-Chrom Product overview By monocular use of the X-Chrom lens, one eye receives a different luminance and chromatic signal from the other eye and through a process of retinal rivalry a wider range of colours can be interpreted. Product features X-Chrom lenses have a dark red pupil Pupil diameter may be varied to suit individual needs Available in 67% water content material to any dimensions Diagnostic sets Evaluation lenses are available to order. Please call for details. CSD.180 Issue 10 July

39 X-Chrom Lens geometry and material (recommended) Base Curve (mm) Diameter (mm) To order To order Standard Pupil diameter 6.00mm Power Range D to D in 0.25D steps Material 67% MMA/VP Non-ionic ISO Material Classification Filcon II 2 Permeability (Dk) 37x10-11 (cm 2 /s) [ml O 2 /(ml. mmhg)] The red X-Chrom colour filter is available in any diameter to suit individual needs. 35 CSD.180 Issue 10 January 2012

40 Diam B/C Material Size Chart % Water Content Filcon I 1 38 Material Available Size Chart CSD.180 Issue 10 July

41 Diam B/C Benz Material Size Chart Benz 59% Water Content Hioxifilcon A Benz Material Available Size Chart 37 CSD.180 Issue 10 January 2012

42 Diam B/C Material Size Chart % Water Content Filcon IV 2 60 Material Available Size Chart CSD.180 Issue 10 July

43 Diam B/C Material Size Chart % Water Content Filcon II 2 67 Material Available Size Chart 39 CSD.180 Issue 10 January 2012

44 Diam B/C SiH Material Size Chart SiH 74% Water Content Filcon V 3 SiH Material Available Size Chart CSD.180 Issue 10 July

45 Diam B/C Material Size Chart % Water Content Filcon II 3 77 Material Available Size Chart 41 CSD.180 Issue 10 January 2012

46 Apex Rigid Lenses Apex rigid gas permeable lenses are designed to mask trauma to the cornea Apex Lenses Design and material In cases where a patient may have a scarred or disfigured cornea. Either as the result of trauma or surgery, an apex lens may be used to bridge the scarring. An apex lens is a rigid lens made in a Bicurve design with a very large total diameter, typically 12.00mm or 12.50mm. Apex lenses will normally have a back optic zone diameter of 10.00mm. It has been traditional to produce lenses in clear material although nowadays many practitioners find that neutral handling tint is beneficial for the patient. The apex design can be produced in any material. The powers of these lenses is frequently high plus and it is therefore possible to choose any level of permeability with confidence. Technical Information Base Curve (mm) Diameter (mm) To order 12.00, Power Range Unlimited Back Optic Zone Diameter (typically) Material To order Geometry Bicurve with controlled edge profile CSD.180 Issue 10 July

47 Aqualine MF Series Progressive multifocal rigid gas permeable lenses Aqualine MF Series The Cantor + Nissel Aqualine MF is a centre-distance simultaneous Vision rigid lens multifocal. Progressive power profile Aqualine MF back surface is a spherical multicurve design with a large optic zone. Aqualine MF achieves the right balance between distance, intermediate and near vision because of its unique aspheric front surface which generates a progressive power profile that is customised for individual patient prescription requirements. Stable vision at distance and near Aqualine MF provides high quality, stable vision at distance, intermediate and near. For Presbyopic rigid lens wearers, Aqualine MF is the natural first choice for clear vision with no compromise. Technical Information Base Curve (mm) Diameter (mm) 7.00 to 8.50 in 0.05 steps 9.00, 950, Power Range D to D in 0.25D steps Reading Addition +1.00D to +3.00D in 0..25D steps Lens Design Features Axial Edge Lift 0.10mm Back Optic Zone Diameter 8.20mm Front Optic Zone Diameter (-) 8.20mm Front Optic Zone Diameter (+) 7.50mm 43 CSD.180 Issue 10 January 2012

48 Aqualine MF Series Quick fitting guide Quick fitting guide Full refraction and eye examination Keratometry Initial lens specification General Fit and refract as for normal distance vision. It is not necessary to have an Aqualine MF diagnostic set. Base curve In the absence of significant corneal astigmatism (cylinders up to 0.50DC), the first choice base curve should be equal to the flatter K reading. Practitioners should make their usual steeper fitting adjustment where corneal cylinders exceed 0.50D. Diameter (mm) 9.00, 9.50, Power Please provide details of patient s spectacle prescription, including the reading addition to the laboratory. Cantor + Nissel will calculate the progressive power based on the final distance and reading prescription of the individual patient to give the appropriate intermediate / near correction. Aqualine MF is available in a range of near additions from +1.00D to +3.00D in 0.25D steps CSD.180 Issue 10 July

49 Aquasil (also sold as Aquaperm) An enhanced biocompatibility RGP lens for daily wear Aquasil / Aquaperm Smart surface technology Aquasil is a unique monomer which is chemically treated after manufacture to have a very thin layer of Hema on the surface. This enhances wettability and comfort of the lens by comparison to other RGP materials Product feartures Available in any combination of lens parameters Finished lenses are extremely stable Available in Toric and Bifocal forms Technical Information Base Curve (mm) Diameter (mm) To order To order Power Range Unlimited Material Propietary soloxanyl monomer Permeability (Dk) 50x10-11 Fatt 35 o C Modifications Possible, but return to the laboratory as the lens must be re-treated afterwards Care Products Use soft lens solutions 45 CSD.180 Issue 10 January 2012

50 Bifocal RGP Lenses A variety of bifocal RGP lenses for daily wear are made to order Bifocal RGP Lenses Segmented bifocal In this design, a segment is cut using a high precision offset lathe. The result is a D-shaped segment of reading power which is orientated by means of a prism to sit inferiorly when worn. Solid segment bifocals are fitted similarly to a standard lens. A total diameter of 9.40mm is recommended as a first choice. Concentric bifocal Concentric bifocal can be manufactured in any RGP material. The central zone, typically 3.50mm in diameter, is powered for distance vision. This is surrounded by an annulus of reading power. The lens-cornea relationship must be designed to provide on-eye dynamics such that the lens will translate on downgaze. The lens must be well-centred on forward gaze to make sure that the patient is looking through the distance zone. Pupil diameters may be varied to suit individual patient needs. CSD.180 Issue 10 July

51 Evolution RGP Aberration controlled RGP lenses Evolution RGP The Cantor + Nissel Evolution RGP employs an advanced aspheric front surface design to create a lens that can deliver superior quality of vision to all wearers. Clearer, sharper vision Evolution RGP is designed to control both the inherent spherical aberrations of the lens and the lens-tears-cornea system. As a result, more light is brought to a retinal focus to give higher contrast sensitivity and improved image perception especially in low ambient light levels. Masks astigmatism The enhanced depth of focus provided by Evolution RGP masks low to moderate levels of Astigmatism. Aids the early Presbyope Similarly, the reduction in blur circle acts as an aid for the early Presbyope. Technical Information Base Curve (mm) Diameter (mm) 7.30 to 8.20 in 0.05 steps 9.50 Power Range D to D in 0.25D steps Lens Design Features Axial Edge Lift 0.10mm Back Optic Zone Diameter 8.20mm Front Optic Zone Diameter 9.00mm 47 CSD.180 Issue 10 January 2012

52 Evolution RGP Quick fitting guide Quick fitting guide Full refraction and eye examination Keratometry Initial lens specification General Fit and refract as for normal distance vision. It is not necessary to have an Evolution diagnostic set. Base curve In the absence of significant corneal astigmatism (cylinders up to 0.50DC), the first choice base curve should be equal to the flatter K reading. Practitioners should make their usual steeper fitting adjustment where corneal cylinders exceed 0.50D. Diameter (mm) 9.50 Power Please provide details of patient s spectacle prescription, including the reading addition to the laboratory. CSD.180 Issue 10 July

53 High Performance RGP Materials Rigid Gas Permeable High Performance RGP Materials Optimum Comfort A new-technology premium rigid lens material which offers optimal stability, precision optics and clinical performance. The Optimum Comfort range is based on a new polymer with only efficient purified silicone combined with the best features of PMMA for excellent clinical performance. Hybrid FS Hybrid FS is a new development by Contamac Ltd which combines fluorosiliconeacrylate material with a hydrogel component. This unique fluid surface technology ensures that a true hydrophilic surface is available at all times no special surface treatments or re-processing are required. Optimum Comfort Hybrid FS Refractive Index Permeability (Dk)* Tints Blue Blue *Permeability in traditional Dk units of (cm 2 /s) [ml O 2 /(ml mmhg)] 49 CSD.180 Issue 10 January 2012

54 Keratoconus RGP Lenses A comprehensive range of rigid lenses which has been developed specifically for keratoconus Keratoconus RGP Lenses Keratoconus is a corneal ectasia that results in irregular astigmatism. Although keratometry can provide useful fitting information in the early to moderate stages, corneal mapping devices are better for interpreting the corneal topography, especially in the intermediate to later stages of this disease. Contact lens fitting in cases of keratoconus can test the skills of the practitioner. Diagnostic lens evaluation is mandatory. Cantor + Nissel provide a comprehensive diagnostic set of rigid lenses which have been developed specifically for this condition Product features Available in any rigid lens material Tricurve construction specifically designed for the condition Diagnostic lenses Standard sets are available. Please call for details. Currently, the most widely accepted rigid corneal lens fitting philosophy is one in which the intention is to distribute the weight of the lens between the cone and the more normal peripheral cornea. In cases where the cone is well established, this results in a lens showing an apical contact area of 2-3 mm, an intermediate clearance zone and a mid-peripheral contact annulus with standard edge clearance at the periphery. With the exception of very early cases, it is essential to use lenses such as the set supplied by Cantor + Nissel to achieve this type of fit. Lens geometry and material (recommended) Power Range Unlimited Materials Recommended: Fluorosiliconacrylate in 60Dk or 90Dk Tints Green, Blue, Clear, Grey CSD.180 Issue 10 July

55 Nissel Keratoconus II Rigid The only complete system of rigid contact lenses for keratoconus to be supplied with single-use trial lenses Nissel Keratoconus II Rigid The Nissel Keratoconus II Rigid lens has been developed by Cantor + Nissel to be easy to deliver as a system of management for keratoconus in modern hospital and specialist clinic environments. The availability of no-cost disposable trial lenses will eliminate the need for the disinfection and management of trial lenses. Nissel Keratoconus II Rigid lenses fit all corneal shapes, sizes and stages of keratoconus because of the unique adaptive back surface geometry which has been designed to make fitting intuitive and efficient. Lens design options include: toric peripheries; full bitorics; and quadrant specific geometry for asymmetric corneas. All lenses are delivered with aberration control optics to provide best possible visual acuity in all lighting levels. Single-use trial lenses The unique distinguishing feature of the Nissel Keratoconus II Rigid system is that all trial lenses are single use. The benefits of this will be immediately clear to practice and clinic managers no more concerns regarding trial lens disinfection and management; the Nissel Keratoconus II delivery system removes any concerns you might have about the management of trial lenses 51 CSD.180 Issue 10 January 2012

56 Nissel Keratoconus II Rigid Technical Information Nissel Keratoconus II Rigid Initial lens specification Materials, manufacture and use Optimum Extra as standard Dk (FATT/ISO) 110/82 Blue, Grey, Green, Clear Design and Parameters Total diameter 8.70mm standard Other diameters 8.10mm, 8.40mm, 9.00mm, 9.30mm Edge Lift a) Standard b) Increased 1-step, Increased 2-step c) Decreased 1-step, Decreased 2-step. Edge lift increments provide clear clinical step changes to lens peripheral fit BVP ±30.00DS Aberration controlled aspheric optics are standard on all Nissel Keratoconus II Rigid lenses BOZR Steepest available 4.80mm Toric periphery, back surface toric, bitoric and quadrant-specific lens geometries available CSD.180 Issue 10 July

57 MetrO 2 Daily wear RGP lenses with a unique incremental design, providing controlled oxygen transmissibility and constant axial edge clearance MetrO 2 MetrO 2 from Cantor + Nissel represents a totally new approach to rigid lens fitting. The innovative design philosophy, based on extensive research and development, encompasses lens geometry, material selection to ensure maximum oxygen transmissibility and computer controlled manufacturing technology. MetrO 2 is a state of the art RGP lens that is simple to fit and which will provide guaranteed clinical performance. Product features If you have a preference for prescribing RGP lenses without the use of a diagnostic set the unique incremental MetrO2 design provides the perfect choice; MetrO2 lenses may be specified with confidence based on keratometry and spectacle Rx The computer designed aspheric periphery is individually calculated for each lens to provide constant axial edge clearance and ensure maximum comfort Automatic material selection based on lens dimensions guarantees that every lens will have oxygen transmissibility which is at least the level required by average patient for all-day wear Single-use diagnostic evaluation sets A standard 12-lens diagnostic evaluation set is available with powers of either +3.00D or 3.00D, manufactured from PMMA. Other powers are available to special order. 53 CSD.180 Issue 10 January 2012

58 MetrO 2 Technical Information MetrO 2 Lens Specifications Order Code BOZR TD M M M M M M M M M M M M M M M M M M Power Range Materials Tints ±30.00D MetrO 2 lenses are manufactured only from state of the art RGP materials supplied in F2 material in Low, Mid and High Dk. The material for each lens is automatically selected by computer to guarantee an average oxygen transmissibility (Dk/t) sufficient for the average patient for all-day wear. The standard tint is pale blue. Other tints from the Paragon range are available to order. CSD.180 Issue 10 July

59 Oxyflex Oxyflex is a RGP lens for daily wear Oxyflex Lens Design and Material Oxyflex is a range of rigid gas permeable lenses which combines the latest material and manufacturing technology with established design and a custom lens facility to provide the practitioner with unsurpassed choice. Oxyflex lenses are intended to be used as prescription lenses based on a trial fitting. Manufacturing expertise and assured quality Computer controlled automatic lathes are used to generate accurate, consistent lens geometries. Every lens undergoes rigorous inspection at several stages throughout the production cycle, thereby ensuring product reproducibility 55 CSD.180 Issue 10 January 2012

60 Oxyflex Technical Information Technical Information Base Curve (mm) Diameter (mm) To order 9.00 Power Range Unlimited Standard Material 60Dk Flourosiliconacrylate Standard Tints Blue, Green, Clear, Grey Other Materials Oxyflex design can be supplied in any material Oxyflex Edge Design Controlled shape and thickness Position of apex of edge CSD.180 Issue 10 July

61 Oxyflex 4F Oxyflex 4F is a RGP lens for daily wear Oxyflex 4F Lens Design and Material Oxyflex 4F has been designed to produce a balanced periphery with optimum edge lift throughout the range of parameters. The use of high precision manufacturing methods enables a 0.07mm interval to be used for the back optic zone radius. This has the benefit of reducing the range of lenses required for diagnostic evaluation. Product features Available in a range of fluorocarbon materials Choice of tints: Blue (standard), Green, Clear or Grey Comprehensive range of lens dimensions 57 CSD.180 Issue 10 January 2012

62 Oxyflex 4F Lens geometry and material Diameter (mm) First Choice 9.40 Other Standard Diameters 9.00, 9.80 Special Order Diameters 8.60, 10.20, Back Optic Zone Radii (mm) Standard Range 7.35, 7.42, 7.50, , 7.72, 7.80, , 8.02, 8.10, 8.17 Steep Range 7.05, 7.12, 7.20, 7.27 Flat Range 8.25, 8.32, 8.40, 8.47 Power Range Unlimited F2 Material Low Mid High Refractive Index Permeability (Dk) Wetting Angle 19 o 19 o 21 o Hardness (Shore D) D83 D82 D81 Tints Blue Grey Green (trial) Clear Blue Grey Green Clear Blue Green Clear CSD.180 Issue 10 July

63 RGP Materials A comprehensive range of RGP materials is available to suit different clinical requirements RGP Materials Paragon HDS A new-technology premium rigid lens material which offers optimal stability, precision optics and clinical performance. The HDS range is based on a new polymer with only efficient purified silicone combined with the best features of PMMA for excellent clinical performance. Optimum comfort has a permeability (Dk) of 58 Fluroperm 30, 60, 92, 151 The Fluroperm system offers four Dk levels in one intergrated polymeric system. This enables the practitioner to tailor oxygen transmissibility to individual patient needs without compromising lens design or dimensional stability. Other RGP Materials Material Dk* Standard Tint Other Tints Uniperm I 12 Blue Grey, Clear Uniperm II 18 Blue Grey, Clear Boston II 12 Grey Blue, Clear Boston IV 26 Grey Blue, Clear Metro Grey Metro Blue Paraperm O2 18 Blue, Grey, Brown, Green, Clear Paraperm O2 Plus 30 Blue Paraperm EW 55 Blue, Clear *Permeability in traditional Dk units of (cm2/ms) [ml O 2 (ml. mmhg)] 59 CSD.180 Issue 10 January 2012

64 Toric Rigid Lenses Toric rigid gas permeable lenses for daily wear are made to order Toric RGP Lenses Lens design and material A comprehensive range of toric rigid lenses including back surface, front surface and bi-toric designs is available to prescription. Details of the patient s keratometry and spectacle Rx are all that is necessary to calculate the lens geometry and powers. Manufacturing expertise and assured quality Computer controlled automatic lathes are used to generate accurate, consistent toric lens geometries. Every lens undergoes rigorous inspection at several stages throughout the production cycle, thereby ensuring product reproducibility Diagnostic sets Diagnostic sets are not recommended. Use the ordering procedure set out below. Ordering custom Toric Rigid Lenses Please supply: Keratometry Spectacle Rx, together with vertex distance if applicable Preferred lens total diameter we recommend a total diameter of 9.40mm Preferred lens material and tint Cantor + Nissel will then calculate and supply lenses with a full exchange facility. If the calculation indicates that a front surface toric is indicated, we will consult you. CSD.180 Issue 10 July

65 Planned Replacement Programmes for Soft Lenses Hospital Plan, Focus Plan Planned Replacement Programmes Cantor + Nissel offer a comprehensive range of planned replacement programmes for soft contact lenses which allow for the frequent, programmed replacement of lenses at reduced cost. Simplicity and flexibility are the keynotes; any lens may be covered. For hospital patients who may damage or spoil their lenses the frequent programmed replacement of lenses at reduced cost is considered a particularly attractive financial proposition. Hospital Plan, Focus Plan and Flexicare in action When ordering by post, fax or telephone, confirm that planned replacement is required and state the frequency of replacement. Typically lenses may be replaced at monthly or 3-monthly intervals but any replacement interval can be specified When a patient is registered on any of the Planned Replacement Programmes Hospital Plan, Focus Plan or Flexicare. A computerised record is set up Cantor+Nissel will confirm the details of the scheme for each patient along with the first delivery of lenses Lenses will then be despatched as required by the frequency of replacement. Monthly planned replacement lenses are sent in 3 month packs. For other replacement periods, a new pair is despatched 2 weeks prior to the replacement date Tinted lenses can be included Lenses covered by replacement plans can be tinted. A standard additional charge will be applied for this process. Cancellation To cancel or amend the Replacement Plan at any time please quote the patient s record number. Further Information Please call for further details, confidential practitioner information and patient leaflets. 61 CSD.180 Issue 10 January 2012

66 Lensplan A replacement scheme for soft and rigid lenses Lensplan Lensplan is designed to offer patients worldwide protection against loss, damage or deterioration of either soft or rigid lenses with a minimum of formality. To maintain a high ethical standard, Cantor + Nissel do not have any direct contact with the patient. Lensplan is issued by the practitioner to the patient and the practitioner handles all claims and dispenses replacement lenses. Lensplan features Minimal paperwork by both practitioner and patient Available on any lens provided specifications are available Lenses can be sent directly to patients at the practitioner s request Lensplan availability Any rigid or soft lens manufactured by Cantor + Nissel Ltd. Any rigid or soft lens produced by another manufacturer provided that a full specification is available and subject to individual review by Cantor + Nissel. Further information Please call for a comprehensive information pack. CSD.180 Issue 10 July

67 Prostheses, Scleral Lenses, Animations and Special Effects Prostheses, Scleral Lenses, Animations and Special Effects Cantor & Nissel Limited Special Artificial Eye Department Nissel House Fensomes Close Hemel Hempstead Hertfordshire HP2 5DH Tel/fax Contacts: Jamie Courtney - Manager Caroline St Claire-Tracy -Technical Artist Lesley Ripley- Technical Artist 63 CSD.180 Issue 10 January 2012

68 Prostheses, Scleral Lenses, Animations and Special Effects George Nissel George Nissel made his first contact lens in 1934 and formed his company, G Nissel & Co Ltd, in Soon after, he developed the Nissel artificial eye. Nissel artificial eyes are still produced from the range of moulds designed all those years ago. CSD.180 Issue 10 July

69 Artificial Eyes Scleral Lenses Corneal Lenses Artificial Eyes, Scleral Lenses and Corneal Lenses Cantor & Nissel Limited has an unrivalled pool of skilled technicians and artists who have developed and evolved unique production techniques. The company therefore offers some of the finest prosthetics available. Current production includes hand painted cosmetic lenses, ocular prosthetics, cosmetic shells, micro lenses, scleral lenses and a number of other products including artificial eyes for the film and TV industry. Cantor & Nissel Limited also supplies materials for moulding and impressions. Artificial eyes are handmade to individual prescription and the following can be incorporated into the prosthetic: Ptosis props, Shelves and Pegs, Arcus Senilis and oval iris. A Nissel artificial eye 65 CSD.180 Issue 10 January 2012

70 Artificial Eyes Scleral Lenses Corneal Lenses Stock artificial eyes These can be supplied singly from the size chart in any colour from the range of 72. They are also available in sets of 24, comprising 12 right and 12 left, presented in a carrying case. We usually supply a range of colours to customers indigenous requirements although any colours are available from the 72-sample range together with a variety of appropriate scleral shades and veining structures. These sets have the advantage of dual usage: they serve as a very good fitting set and also an excellent colour-matching set. Stock conformers We supply these in the same way as the stock artificial eyes but in blank form: usually white with the same sizing and set format. Loan sets We operate a loan system of fitting sets and colour matching buttons and impressions. Goods are charged at full price and then credited less a handling fee on their return. A set of artificial eyes from a total of 48 fitting shapes, available with a selection of colours to order CSD.180 Issue 10 July

71 Artificial Eyes Scleral Lenses Corneal Lenses Individually hand crafted artificial eyes Cantor & Nissel Limited can supply artificial eyes in any of the stock dimensions below. Iris size is 11.50mm and pupil size is 3.50mm for all of these eyes. Horizontal Vertical Reference Measurement Measurement 1A 19.00mm 17.00mm 2A 20.00mm 16.00mm 3A 21.00mm 19.00mm 4A 22.00mm 18.00mm 5A 23.00mm 21.00mm 6A 24.00mm 20.00mm 7A 25.00mm 25.00mm 8A 26.00mm 22.00mm 9A 27.00mm 25.00mm 10A 28.00mm 24.00mm 11A 29.00mm 27.00mm 12A 30.00mm 26.00mm Horizontal Vertical Reference Measurement Measurement 1B 19.50mm 16.00mm 2B 20.50mm 17.00mm 3B 21.50mm 18.00mm 4B 22.50mm 19.00mm 5B 23.50mm 20.00mm 6B 24.50mm 21.00mm 7B 25.50mm 22.00mm 8B 26.50mm 23.00mm 9B 27.50mm 24.00mm 10B 28.50mm 25.00mm 11B 29.50mm 26.00mm 12B 30.50mm 27.00mm 67 CSD.180 Issue 10 January 2012

72 Artificial Eyes Scleral Lenses Corneal Lenses Standard iris buttons We produce a set of 72 colour matching buttons which range in colour from palest blue through to darkest brown. They are all numbered on the back and presented in a carrying case. The dimensions are 11.00mm diameter iris with 3.50mm diameter black pupil. A smaller set of 18 buttons is available which can be any combination from the set of 72. The buttons are also available singly. Prescription iris buttons We produce these to order: any size and colour can be supplied. The buttons can then be set in artificial eyes or used as a permanent colour match. 72 IRIS PUPIL UNITS for matching purposes, used in conjunction with sclera colours CSD.180 Issue 10 July

73 Artificial Eyes Scleral Lenses Corneal Lenses Scleral Matching Fish These are used for colour matching the sclera and have been designed to be used in conjunction with the iris buttons. There is a full range of 72 shades which cover all possible colour ways and nationalities. Some of the shades include different veining patterns and others include pinguecular colourings and fatty deposits and bloodshot detailing. They are available in sets of 10 and presented in a case. They are also available singly. Set of 72 Scleral Matching Fish Also available in sets of CSD.180 Issue 10 January 2012

74 Artificial Eyes Scleral Lenses Corneal Lenses Nissel artificial eye moulds The secret of the Nissel eye used in the first stages of production. These handcrafted moulds have been continuously developed and updated over half a century and are still producing the best artificial eye in the world. Nissel artificial eye moulds CSD.180 Issue 10 July

75 Artificial Eyes Scleral Lenses Corneal Lenses Injection moulding shells These are used to take impressions from the eye socket or with an eye in situ. They are available in sets of 6 shells: 3 right and 3 left. Small: 25mm x 23mm Medium: 26mm x 24mm Large: 27mm x 25mm They are supplied on a stand and the material is PMMA. They are also available singly. Any sizes outside the standard range can be made on request. Injection moulding shells for sclera lens or artificial eye impressions. Set of 6:- large, medium and small in both right and left 71 CSD.180 Issue 10 January 2012

76 Artificial Eyes Scleral Lenses Corneal Lenses Post-operative shells Made from PMMA, these are used post-operatively to keep the eyelids off the cornea during healing. They are available in standard universal fits: small, medium and large. The centre hole is 4.00mm. Other sizes and other hole sizes are available on request. A selection of post-operative shells Large, medium and small, all with a 4.00mm hole CSD.180 Issue 10 July

77 Artificial Eyes Scleral Lenses Corneal Lenses Trial shapes These are used as an aid to fitting an artificial eye and can be adjusted either by building up or reducing until the desired fit is achieved. They are supplied in clear or white and are made from PMMA. There are two main types: either those made from an impression or a standard size as per our trial set of 24. CONFORMER for trial or maintaining the socket post-operatively 73 CSD.180 Issue 10 January 2012

78 Artificial Eyes Scleral Lenses Corneal Lenses Scleral lenses The unique benefits that scleral lenses offer ensure that they maintain a specialised role in most contact lens practices. Many practitioners opt for scleral lenses because of their therapeutic and protective benefits. Indications for scleral lenses include patients who have undergone corneal surgery or transplants, ocular surface disorders, abnormal corneal topography, tear retention in severe dry eye as well as protection from abnormal lids and lashes. Scleral lenses can also be used to manage ptosis by use of ptosis props. Haptic cosmetic lenses - shells These are shells: lenses which cover the whole of the front of the eye and sit just inside the lids. They can be made in any size, either taken from an impression or from a fitting shell. Any colouring, diameters and prescriptions are available with either a clear or a black pupil. The scleral portion can also be painted or left clear. Any thickness is available from 1.00mm to 3.50mm (an artificial eye would be made with greater overall substance). The following can be incorporated into any haptic shell-lens: Ptosis Shelf/peg/slot Black coating on back surface for albinism Decentration Arcus senilis Tinted powered optic Fenestrations Cylinders Oval iris CSD.180 Issue 10 July

79 Artificial Eyes Scleral Lenses Corneal Lenses Clear scleral lenses and shells These are used for correction or as a fitting aid for future prosthetics. There are three types: Moulded which is moulded to the cast supplied from an impression or an existing shell lens Wide angle which is fitted from our standard 24-lens trial set Spherical which is fitted from our standard 8-lens set The shell-lenses can be of any dimensions and any thickness from 0.80mm upwards. The following can be incorporated onto any lens-shell: Ptosis Prop/peg/slot Tear channel fenestrations Tinted optic Build-ups Cylinders Wide-angle sclera lenses for trial fitting 75 CSD.180 Issue 10 January 2012

80 Artificial Eyes Scleral Lenses Corneal Lenses Hand-painted contact lenses The highly skilled team of artists assembled at Cantor & Nissel Limited produce a large range of hand painted scleral and micro-corneal lenses. Increasingly Cantor & Nissel Limited work from photographs and digital images. Digital images can be ed directly to the company at [email protected]. These images are then printed out on a highquality colour balanced printer for the artists to work from. We do recommend that the JPG format is used whenever possible as this offers the best colour depth and resolution. Parameters should include base curve, iris diameter, pupil diameter, whether the pupil should be black or clear, and the power (if required) in dioptres. Alternatively, iris matching sets and scleral matching sets can also be used for colour copying. In the absence of an image or as supplementary information Cantor & Nissel Limited also requests the following details: Stroma Colour(s) Main portion of the iris Limbus Colour The defining ring around the outside of the stroma and sclera. Normally a dark grey tone Vein Detail The presence of veins on the sclera, graded as none, light, medium or heavy Corona Colour The area immediately surrounding the pupil CSD.180 Issue 10 July

81 Artificial Eyes Scleral Lenses Corneal Lenses Micro-corneal cosmetic lenses in PMMA Micro-corneal cosmetic lenses in PMMA with clear or black pupil can be manufactured to any prescription Micro-corneal cosmetic lenses in PMMA 77 CSD.180 Issue 10 January 2012

82 Artificial Eyes Scleral Lenses Corneal Lenses Colour matching We offer an exclusive one-to-one colour matching service with our artist. If a patient wants a perfect colour match we can hand-paint a match of the good eye during a visit to our studio at Hemel Hempstead. This takes about two hours. Once this is completed there is then a permanent record should the patient ever need a replacement. Colour matching of an artificial eye by our technical artists at the Hemel Hempstead studio CSD.180 Issue 10 July

83 Artificial Eyes Scleral Lenses Corneal Lenses Film, advertising and animation For decades Nissel Limited have been behind many of the special effects in memorable motion pictures and has added an extra dimension to brand advertising in numerous commercials. That mantle has been maintained by Cantor & Nissel Limited. Some of the Eyes specially manufactured for film, advertising and animation purposes. Cantor + Nissel Limited is the specialist company for these eyes and probably unique in this field Eyes and contact lenses have been supplied for many theatrical productions as well as the Natural History Museum. The company also has a longestablished relationship with many of the world s top model-makers and animatronic workshops, including Jim Henson s Creature Workshop. 79 CSD.180 Issue 10 January 2012

84 Artificial Eyes Scleral Lenses Corneal Lenses A range of ¾ spheres are produced normally for use in puppets and models which are manufactured from a specially formulated resin. Spheres vary in both size and price, up to a maximum size of 152mm. Location holes can be machined and the back surface of these products milled in order to accommodate animatronics. Full spheres, half spheres and one-quarter spheres are also available. These products can either be supplied as blanks or the finished hand-painted article. Cantor & Nissel Limited technical artists can work to any artwork or dimensions within the range quoted. Images can be sent in JPG or Bitmap formats to the company on [email protected] Film credits Film credits include the Star Wars trilogy, Space Patrol, Lost in Space and Harry Potter and the Philosopher s Stone. Television drama credits Television drama credits include Thunderbirds, Wind in the Willows and Silent Witness. Television advertisements Television advertisements include Allied Dunbar, Colemans, Schweppes, Mercedes, Lloyds Bank, Fosters, John Smith s and Churchill s Bulldog insurance. CSD.180 Issue 10 July

85 Artificial Eyes Scleral Lenses Corneal Lenses Consumables Cantor & Nissel Limited offers a wide range of consumables including milled and unmilled blanks for the production of haptic (scleral) lenses, as well as plaster, moulding shells, handles and stands, wax for blocking with a choice of low, medium and high melting points, wax for polishing in a choice of white or blue, polishing cloths and sponges. Consumables for the optical laboratory and specialist contact lenses and prosthetic fitter 81 CSD.180 Issue 10 January 2012

86 Presbyopic Fitting Guide Presbyopic Fitting Guide EV38 and PV Series. Cantor + Nissel have an extremely flexible modular system for correcting presbyopic patients. This fitting guide is intended to guide you through fitting patients at various stages of presbyopia with the EV38 and PV Series lenses. Base curve and lens type selection K Readings Base Curve 7.45mm and below 8.30mm 7.45 to 7.90mm 8.70mm 7.90mm and above 9.10mm Addition / Base Curve < +1.00D +1.25D / +1.50D +1.75D / +2.00D +2.25D to +2.75D 8.30mm EV38 PV150 PV200 PV mm EV38 PV150 PV200 PV mm EV38 PV150 PV200 PV250 Helpful tips Always ascertain the patient s ocular dominance Never occlude, as this is a binocular system and the brain needs to identify the ocular dominance. Maximum over-refraction possible for aspheric lenses is 0.50D. Use hand-held lenses and not a phoropter. The aspheric optical system used by these contact lenses will not respond to more than 0.50D of spherical over-refraction. Select another lens if more than 0.50D is needed. For final power selection PV, see tables. CSD.180 Issue 10 July

87 Presbyopic Fitting Guide The Early Presbyope: EV Lenses The plus effect inherent in the aspheric optics of the EV38 product will enable most marginal presbyopes to read at normal reading distances. Simply fitting the patient for distance with either the EV38 lenses in both eyes will usually provide the desired amount of addition for near vision and delay the requirement for a spectacle over-correction. If there is still a slight deficiency in near vision, the addition of +0.25/+0.50D to the lens in the non-dominant eye will usually correct the situation without detracting from binocular distance vision or upsetting distance stereopsis. Step 1 Use spectacle Rx with usual allowance for BVD where applicable. Step 2 Transpose cylinder to minus form by adding 25% of the cylinder to base sphere only to cylinders in excess of D. Step 3 Allow lenses to settle for about 10 minutes. Step 4 Check binocular acuity for near without occluding either eye. If satisfactory, proceed to check distance and correct, if necessary. Near additions of up to + I.50D may be corrected by adding +0.50D to +0.75D to the non- dominant eye without affecting distance stereopsis. The addition of +0.25D to the dominant eye will not affect the distance stereopsis but will provide satisfactory binocular near vision. 83 CSD.180 Issue 10 January 2012

88 Presbyopic Fitting Guide The Advanced Presbyope Presbyopic Correction Requiring +1.25D to +2.75D Addition The PV Series progressive multifocal contact lenses are ideal for today s demanding patients. Step 1 During the refraction, identify the dominant eye. Step 2 Select the appropriate lens for the dominant (distance) eye and the correct lens for the non-dominant (near) eye from the chart, and select the appropriate lens base curve. Step 3 After insertion, allow the lenses to 'settle' for 10 minutes. Step 4 Check binocular acuity for near first, then intermediate and distance in normal light without occluding either eye. Step 5 If distance and near binocular acuities are within a line or two of patient's potential, leave the lenses in for another 45 to 50 minutes to equilibrate the eyes. Step 6 If correction is needed, binocularly over-refract the reading (near) eye first, then the distance eye, without occluding either eye or using a phoropter. Change lenses if necessary. Use spherical equivalent correction, i.e. transpose cylinders into minus form then add half of the cylinder to the spherical distance correction before checking the chart. Because of the 2.OOD power spread, 0.25D can have unusually positive effects on acuity. When it is difficult to reach a satisfactory balance between distance and near, try a flatter lens. The Emmetropic Patient. If no distance correction is required, all that may be necessary is to fit the patient with one Cantor + Nissel presbyopic lens in the non-dominant eye as in Step 2. CSD.180 Issue 10 July

89 Presbyopic Fitting Guide Optimal Modified Monovision Front Surface Aberration Controlled Lenses Standard spherical monovision rarely gives acceptable distance stereopsis and the need to suppress the non-dominant eye in distance vision is frequently unacceptable to the patient. Cantor + Nissel lenses revolutionise the approach to monovision fitting and optimise the potential for success by exploiting the special characteristics of aspheric lenses. Simply fit a Cantor + Nissel multifocal lens in the nondominant (near) eye and a single vision aberration controlled lens in the dominant (distance) eye. The result provides positive stereopsis for both distance and intermediate vision, leaving the patient monocular only at near, which is well-accepted by most patients. Step 1 During refraction, identify the dominant eye. Step 2 Select appropriate EV38 lens, using spherical equivalent Rx, then select appropriate lens base curve. Step 3 From the non-dominant near chart, select a PV Series lens having the appropriate base curve. Step 4 Allow lenses to settle for about 10 minutes. Check binocular acuity for near first, then intermediate and distance in normal room light without occluding either eye. Step 5 If correction is required, over-refract, and change lenses if necessary. Use spherical equivalent correction by transposing cylinders to minus form. Add half of the cylinder for the PV lenses. For the EV38, ignore cylinders up to and including 0.75D, and add 25% to the spherical distance correction before checking the charts. As little as 0.25D can have unusually positive effects on acuity. Use flatter lenses if VIDs are large. 85 CSD.180 Issue 10 January 2012

90 Presbyopic Fitting Guide Progressive Soft Multifocals Power Selection and Final Power Form Nissel PV Lenses The original centre-near design is specified and labelled with the combined power form (i.e. Distance Power + Reading Addition). Furthermore the product name denotes the reading addition, a PV150 having a +1.50D reading addition, a PV200 having a +2.00D reading addition and so on. For example, a -1.75D lens with a +2.00D add is specified as a PV D. Please refer to the detailed fitting charts that follow which provide an easy reference for the final power forms for both dominant and non-dominant eyes. CSD.180 Issue 10 July

91 Presbyopic Fitting Guide PV Multifocal Lenses Dominant Eye (Distance) Add Dist PV150 PV200 PV CSD.180 Issue 10 January 2012

92 Presbyopic Fitting Guide PV Multifocal Lenses Non-Dominant Eye (Distance) Add Dist PV150 PV200 PV CSD.180 Issue 10 July

93 Presbyopic Fitting Guide PV Multifocal Lenses Dominant Eye (Distance) Add Dist PV150 PV200 PV CSD.180 Issue 10 January 2012

94 Presbyopic Fitting Guide PV Multifocal Lenses Non-Dominant Eye (Distance) Add Dist PV150 PV200 PV CSD.180 Issue 10 July