Role of Galilei in IOL power calculations in post-lasik/prk and post-rk eyes
|
|
|
- Rudolph Parrish
- 8 years ago
- Views:
Transcription
1 Role of Galilei in IOL power calculations in post-lasik/prk and post-rk eyes Li Wang, M.D., Ph.D, Mariko Shirayama, M.D. Christopher M. Pruet, Mitchell M Weikert, M.D. Douglas D. Koch, M.D. Cullen Eye Institute Baylor College of Medicine Houston, TX
2 Financial Disclosure Travel support (ASCRS 2009) Li Wang, Mariko Shirayama
3 Background Difficulties in determining true corneal refractive power in post-lasik/prk/rk eyes Keratometric inaccuracy Invalid use of effective refractive index of cornea (1.3375) Problems in 3 rd and 4 th generation IOL formulas Inaccurate estimation of ELP Exception: Haigis formula
4 Galilei Dual Scheimpflug Analyzer Placido disk + dual Scheimpflug camera Calculate total corneal power with ray tracing method
5 Purpose To evaluate the accuracy of the Galilei for measuring corneal power in patients following myopic LASIK/PRK To assess the accuracy of IOL power calculation in eyes that underwent myopic LASIK/PRK or RK and subsequent cataract surgery
6 Accuracy for measuring corneal power in patients following myopic LASIK/PRK
7 Patients Inclusion criteria Wavefront-guided LASIK/PRK in our center Stable refraction after the surgery (post-lasik 3 months, post-prk 6 months) Galilei images with good quality 63 eyes Age: 37 ± 9 years (range 21 to 54 years) Refractive correction: 3.66 ±1.65 D (range 1.00 to 7.58 D)
8 Methods Gold standard Corneal power obtained from clinical history method (HisRP) Accurate historical data available in our center Corneal powers from the Galilei Divided into 3 categories according to involvement of posterior corneal power
9 Most accurate corneal power: Total corneal power (0-4mm) y = 1.057x R 2 = HisRP P< Ray Tracing (Total central average)
10 ASCRS IOL Calculator IOL report
11 Accuracy of IOL power calculation in eyes with prior myopic LASIK/PRK
12 Patients Consecutive cases of IOL implantation between April 08 to Feb. 10 Inclusion criteria Prior myopic-lasik/prk Good quality maps with EyeSys, Atlas and Galilei Post-cataract surgery BSCVA 20/30 at 3 weeks or later
13 Patients 28 eyes of 22 patients Mean age: 58 ± 9 years (range 34 to 73 years) IOLs: SN60WF (n=18), Toric (n=4), Crystalens (n=4), ZCB00 (n=1), MA60AC (n=1) 17 eyes of 14 patients had all historical data Myopic LASIK correction: 4.28 ± 2.61 D (range 0.88 to 8.50 D)
14 ASCRS IOL calculator
15 Galilei TCP 0-4 mm Additional zones analyzed for Galilei TCP: 0-2 mm, 0-3 mm, 0-5 mm 3 categories of formulas Target at actual refraction after cataract surgery Double-K Holladay 1 and Haigis-L formulas
16 Methods IOL prediction error = IOL implanted IOL calculated Variance consistency of performance Refractive prediction error Assume 1 D of IOL prediction error producing 0.7 D of refractive error Mean absolute prediction error (MAE) Mean numerical error (MNE) adjusted to zero Eyes within 0.5 D and 1.0 D of refractive error
17 Variance of IOL prediction error with methods using no prior data (n=28) Variance (D 2 ) Wang-Koch- Maloney Shammas Haigis-L Haigis-L tended to have better consistency of performance (all P>0.05). TCP-2mm TCP-3mm TCP-4mm TCP-5mm
18 Refractive mean absolute error (MAE) with methods using no prior data (n=28) MAE (D) Wang-Koch- Maloney Shammas Haigis-L Haigis-L tended to have smaller MAE (all P>0.05). TCP-2mm TCP-3mm TCP-4mm TCP-5mm
19 % of eyes Refractive prediction error with methods using no prior data (n=28) /- 0.5 D 89 +/- 1.0 D % Wang-Koch- Maloney Shammas Haigis-L 39 Proposed benchmark for normal eyes: Gale RP, et al. Benchmark standards for refractive outcomes after NHS cataract surgery. Eye. 2009;23: TCP-2mm 46 TCP-3mm 43 TCP-4mm 46 TCP-5mm UK NHS benchmark ±1.0 D 55% ±0.5 D
20 Refractive MAE with all methods (n=17) Clinical History Feiz-Mannis Corneal Bypass Adjusted EffRP Adjusted Atlas0-3 Masket Modified-Masket Wang-Koch-Maloney Shammas Haigis-L TCP-2mm TCP-3mm TCP-4mm TCP-5mm MAE (D) Significant greater MAE with methods using pre-lasik Ks and MR than those with (all P<0.05)
21 Refractive prediction error with all methods (n=17) /- 0.5 D +/- 1.0D UK NHS benchmark 85% ±1.0 D % ±0.5 D % of eyes Clinical History Feiz-Mannis Corneal Bypass Adjusted EffRP Adjusted Atlas0-3 Masket Modified-Masket Wang-Koch-Maloney Shammas Haigis-L TCP-2mm TCP-3mm TCP-4mm TCP-5mm
22 Summary Refractive MAE with Galilei TCP Tended to be smaller than those with historical data Similar with other methods using no prior data % of eyes within 0.5 D of refractive prediction errors with Galilei Tended to be smaller than those with other methods using no prior data
23 Accuracy of IOL power calculation in eyes with prior RK
24 Purpose Because RK eyes have variable front and back curvatures, IOL calcs are especially challenging To evaluate the accuracy of 4 devices for calculating corneal power for IOL calculations in RK eyes undergoing cataract surgery IOLMaster, EyeSys, Atlas, Galilei
25 Patients Consecutive cases of IOL implantation between April 08 to February 10 Inclusion criteria Prior RK Good quality maps with IOLMaster, EyeSys, Atlas, and Galilei Post-cataract surgery BSCVA 20/30 at 3 weeks or later
26 Patients 21 eyes of 14 patients Mean age: 63 ± 10 years (range 47 to 79 years) 5 male and 9 female IOLs: SN60WF (n=12), Toric (n=8), SA60AT (n=1)
27 Corneal powers evaluated IOLMaster (anterior) K readings: Average of K1 and K2 IOLMaster K EyeSys (anterior) Zone: EffRP - all points within the central 3 mm and takes into account the Stiles-Crawford effect EyeSys EffRP
28 Corneal powers evaluated Atlas (anterior) Zones: Averages over central 2-, 3-, 4-, and 5-mm zones Atlas zone0-2, Atlas zone0-3, Atlas zone0-4, and Atlas zone0-5 Annuli: Average of 1-, 2- and 3-mm and average of 1-, 2-, 3- and 4-mm annuli Atlas annuli1-3 and Atlas annuli1-4
29 Corneal powers evaluated Galilei Dual Scheimpflug Analyzer (anterior and posterior) Zones: Total corneal power (TCP) with ray tracing Average over central 2-, 3-, 4-, and 5-mm zones TCP zone0-2, TCP zone0-3, TCP zone0-4, and TCP zone0-5 Annuli: Average: 1-, 2-, 3-mm and 1-, 2-, 3-, 4-mm annuli TCP annuli1-3 and TCP annuli1-4
30 Target at actual refraction after cataract surgery Double-K Holladay 1 formulas
31 Methods Refractive prediction error Assume 1 D of IOL prediction error producing 0.7 D of refractive error Mean absolute prediction error (MAE) Mean numerical error (MNE) adjusted to zero % of eyes within 0.5 D and 1.0 D
32 Methods Select the best method for Atlas and Galilei Smallest variance (SD 2 ) of IOL prediction error Compare accuracy among devices
33 Variance of IOL prediction error with Atlas 3.0 Variance (D 2 ) Atlas zone0-2 Atlas zone0-3 Atlas zone0-4 Atlas zone0-5 Atlas annuli1-3 Atlas annuli1-4
34 Variance of IOL prediction error with Galilei TCPzone0-2 TCPzone0-3 TCPzone0-4 TCPzone0-5 TCPannuli1-3 TCPannuli1-4 Variance (D 2 )
35 Refractive mean absolute error (MAE) with different devices MAE (D) EyeSys EffRP IOLMasterK Atlas zone0-3 TCP annuli1-4 Galilei TCP annuli1-4 tended to produce smallest MAE (all P>0.05).
36 Refractive prediction error / D +/- 1.0 D UK NHS benchmark 85% ±1.0 D % of eyes % ±0.5 D EyeSys EffRP IOLMaster K Atlas zone0-3 TCP annuli1-4 Proposed benchmark for normal eyes: Gale RP, et al. Benchmark standards for refractive outcomes after NHS cataract surgery. Eye. 2009;23:
37 Sample case: 59 yo female, AL=23.91 mm IOLMaster K = D EyeSys EffRP = D
38 Atlas zone0-3 = D Galilei TCP zone0-4 = D Galilei TCP annuli1-4 = D
39 Targeting refraction of D Devices Corneal powers (D) Predicted IOL power (D) IOLMaster K EyeSys EffRP Atlas zone Galilei TCP zone Galilei TCP annuli IOL prediction error (D) SN60WF 29 D implanted x90 = 1.13 D Ideal IOL power for ref = 31.3 D
40 Summary Galilei TCP annular average 1-4 mm tended to have the most consistent performance in IOL power prediction Met the UK NHS benchmark standards for normal eyes Surprises still occur Need: more eyes and more sites!
41 Conclusion Galilei is a useful adjunct in IOL power calculations in post-lasik/prk eyes Getting better Recent new software Refining ongoing Galilei is a outstanding tool for RK eyes
42 Current practice Use Total Corneal Power from the Ray Tracing calculation One of our key parameters in estimating corneal refractive power in eyes that have undergone corneal refractive surgery
43 Thank you for your attention!
How do we use the Galilei for cataract and refractive surgery?
How do we use the Galilei for cataract and refractive surgery? Douglas D. Koch, MD Mariko Shirayama, MD* Li Wang, MD, PhD* Mitchell P. Weikert, MD Cullen Eye Institute Baylor College of Medicine Houston,
Posterior Corneal Astigmatism: Is It Important? MP Weikert, MD Baylor College of Medicine October 23, 2011
: Is It Important? MP Weikert, MD Baylor College of Medicine October 23, 2011 Corneal Imaging What major challenge do we face when imaging the cornea? Measuring the curvature & refractive power of the
Technicians & Nurses Program
ASCRS ASOA Symposium & Congress Technicians & Nurses Program April 17-21, 2015 San Diego, California Update on Post-Refractive Surgery IOL Calculations ASCRS Technicians and Nurses Program April 18 th,
IOL Power Calculation After Myopic LASIK. Hany Helaly, Lecturer of Ophthalmology, Faculty of Medicine, Alexandria University.
IOL Power Calculation After Myopic LASIK Hany Helaly, Lecturer of Ophthalmology, Faculty of Medicine, Alexandria University. SUPERVISORS Prof. Dr. Mohammad El-Hifnawy Professor of Ophthalmology Faculty
Update on Post- Refractive Surgery IOL Calculations
Update on Post- Refractive Surgery IOL Calculations Hawaiian Eye 2014 Kauai Rhonda G Waldron MMSc, COMT, CRA, ROUB, RDMS Diagnostic Echographer, Senior Associate in Ophthalmology Emory Eye Center Atlanta,GA
OCT-based IOL power calculation for eyes with previous myopic and hyperopic laser vision correction
American Academy of Ophthalmology Annual Meeting Orlando, Florida, 21-25 October 2011 OCT-based IOL power calculation for eyes with previous myopic and hyperopic laser vision correction Weeks Professor
Premium IOL Implantation Calculations in Post-LASIK Cataract Eyes Using ASCRS IOL Calculator
Premium IOL Implantation Calculations in Post-LASIK Cataract Eyes Using ASCRS IOL Calculator Sahiba K Chailertborisuth, Saneha K. C. Borisuth, Navaneet S.C. Borisuth, MD, PhD Virdi Eye Clinic & Laser Vision
COMPARISON OF INTRAOCULAR LENS POWER CALCULATION METHODS IN EYES THAT HAVE UNDERGONE LASER-ASSISTED IN-SITU KERATOMILEUSIS
COMPARISON OF INTRAOCULAR LENS POWER CALCULATION METHODS IN EYES THAT HAVE UNDERGONE LASER-ASSISTED IN-SITU KERATOMILEUSIS BY Li Wang MD PhD, Marc A. Booth MD, AND Douglas D. Koch MD* ABSTRACT Purpose:
IOL Calculation After LASIK. Chapter (3)
the cornea (P) may be considered as the sum of the power of the anterior (Pa) and posterior (Pp) corneal surfaces, as shown in the formula: P = Pa + Pp = (n2 n1)/r1 + (n3 n2)/r2, where n1 is the refractive
Corneal Refractive Power Estimation and Intraocular Lens Calculation after Hyperopic LASIK
Corneal Refractive Power Estimation and Intraocular Lens Calculation after Hyperopic LASIK Shady T. Awwad, MD, 1,2 Patrick S. Kelley, MD, 1 R. Wayne Bowman, MD, 1 H. Dwight Cavanagh, MD, PhD, 1 James P.
Intraocular Lens Power Calculation after Myopic Refractive Surgery
Intraocular Lens Power Calculation after Myopic Refractive Surgery Theoretical Comparison of Different Methods Giacomo Savini, MD, Piero Barboni, MD, Maurizio Zanini, MD Objective: To evaluate the reliability
Total Corneal Power Estimation: Ray Tracing Method versus Gaussian Optics Formula PATIENTS AND METHODS
Cornea Total Corneal Power Estimation: Ray Tracing Method versus Gaussian Optics Formula Li Wang, 1 Ashraf M. Mahmoud, 2 Betty Lise Anderson, 3 Douglas D. Koch, 1 and Cynthia J. Roberts 2 PURPOSE. To evaluate
ALL-IN-ONE Optical Biometry, Dual Scheimpflug Tomography and Placido Topography
ALL-IN-ONE Optical Biometry, Dual Scheimpflug Tomography and Placido Topography GALILEI G6 Clinical Applications High confidence premium IOL selection The GALILEI G6 offers a link to the ray-tracing software
Intraocular lens power calculation after corneal refractive surgery Sachin D. Kalyani, Alisa Kim and John G. Ladas
Intraocular lens power calculation after corneal refractive surgery Sachin D. Kalyani, Alisa Kim and John G. Ladas Department of Ophthalmology, Wilmer Ophthalmologic Institute, Johns Hopkins School of
No-history method of intraocular lens power calculation for cataract surgery after myopic laser in situ keratomileusis
J CATARACT REFRACT SURG - VOL 33, JANUARY 2007 No-history method of intraocular lens power calculation for cataract surgery after myopic laser in situ keratomileusis H. John Shammas, MD, Maya C. Shammas,
THE BEST OF BOTH WORLDS Dual-Scheimpflug and Placido Reaching a new level in refractive screening
THE BEST OF BOTH WORLDS Dual-Scheimpflug and Placido Reaching a new level in refractive screening GALILEI G4 Clinical Applications Corneal Implant Planning The comes with a licensable corneal inlay software
INTRODUCTION. Trans Am Ophthalmol Soc 2013;111:34-45
OPTICAL COHERENCE TOMOGRAPHY BASED CORNEAL POWER MEASUREMENT AND INTRAOCULAR LENS POWER CALCULATION FOLLOWING LASER VISION CORRECTION (AN AMERICAN OPHTHALMOLOGICAL SOCIETY THESIS) By David Huang MD PhD,
INTRODUCTION. Trans Am Ophthalmol Soc 2006;104:402-413
ORBSCAN II ASSISTED INTRAOCULAR LENS POWER CALCULATION FOR CATARACT SURGERY FOLLOWING MYOPIC LASER IN SITU KERATOMILEUSIS (AN AMERICAN OPHTHALMOLOGICAL SOCIETY THESIS) BY Henry Gelender MD ABSTRACT Purpose:
The effect of corneal wavefront aberrations on corneal pseudo-accommodation
The effect of corneal wavefront aberrations on corneal pseudo-accommodation Li Wang, MD, PhD Elizabeth Yeu, MD, Douglas D. Koch, MD Cullen Eye Institute Baylor College of Medicine, Houston, TX Background
Simple regression formula for intraocular lens power adjustment in eyes requiring cataract surgery after excimer laser photoablation
J CATARACT REFRACT SURG - VOL 32, MARCH 26 Simple regression formula for intraocular lens power adjustment in eyes requiring cataract surgery after excimer laser photoablation Samuel Masket, MD, Seth Everett
Intraocular lens power calculation after myopic excimer laser surgery with no previous data
UPDATE/REVIEW Intraocular lens power calculation after myopic excimer laser surgery with no previous data Juan Carlos Mesa-Gutiérrez, MD, PhD, FEBO; Antonio Rouras-López, MD; Isabel Cabiró-Badimón, MD;
Supplement to October 2014. Master Your Toric Planning and Improve Refractive Outcomes With the LENSTAR LS 900. Sponsored by
Supplement to October 2014 Master Your Toric Planning and Improve Refractive Outcomes With the LENSTAR LS 900 Sponsored by Contents Lenstar and the T-Cone Toric Platform... xx Offering sophisticated planning
Premium Lenses in Problematic Patients
Premium Lenses in Problematic Patients How to be successful with presbyopic lenses in eyes that have already had LASIK surgery. Walter Bethke, Managing Editor If implanting a monofocal intraocular lens
The Galilei Dual Scheimpflug Analyzer incorporates multiple diagnostic modalities into one device to map the cornea and anterior segment.
Supplement to March 2009 The Galilei Dual Scheimpflug Analyzer incorporates multiple diagnostic modalities into one device to map the cornea and anterior segment. Sponsored by an unrestricted educational
IOL Power Calculations for Postrefractive Surgery Eyes
eyetube.net The Creator s Forum: IOL Power Calculations for Postrefractive Surgery Eyes Olsen Formula By Thomas Olsen, MD, PhD The calculation of IOL power in an eye that has undergone corneal refractive
Comparison of Corneal Power and Intraocular Lens Power Calculation Methods after LASIK for Myopia. Abstract
Comparison of Corneal Power and Intraocular Lens Power Calculation Methods after LASIK for Myopia Seyed Mohammad Reza Taheri, MD 1 Azita Kheiltash, MD, MPH 2 Hassan Hashemi, MD 1,3 Abstract Purpose: To
Insert to October 2013 THE COMPLETE PICTURE. Experiences with the ALADDIN system. Sponsored by Topcon
Insert to October 2013 THE COMPLETE PICTURE Experiences with the ALADDIN system Sponsored by Topcon THE COMPLETE PICTURE Advantages of The Aladdin How this all-in-one optical biometer edged out the IOLMaster
Insert to. January 2011. Comfort and confidence for all IOL calculations
Insert to January 2011 Comfort and confidence for all IOL calculations Advanced Optical Biometry and Keratometry with LENSTAR LS 900 CONTENTS Lenstar and Ray-Tracing Calculations...3 By Jaime Aramberri,
IOL Power Calculations for Postrefractive Surgery Eyes
eyetube.net The Creator s Forum: IOL Power Calculations for Postrefractive Surgery Eyes The minds behind today s commonly used formulas provide overviews and pearls for use. By Wolfgang Haigis, Ms, PhD;
Corneal Power Measurements Using Scheimpflug Imaging in Eyes With Prior Corneal Refractive Surgery
Corneal Power Measurements Using Scheimpflug Imaging in Eyes With Prior Corneal Refractive Surgery Jack T. Holladay, MD, MSEE, FACS; Warren E. Hill, MD, FACS; Andreas Steinmueller, MSc ABSTRACT PURPOSE:
LASIK/PRK following previous eye Surgery
AAO Chicago 2010 LASIK/PRK following previous eye Surgery A. John Kanellopoulos, MD Associate Clinical Professor, NYU Medical School Director: Laservision.gr Eye Institute, Athens, Greece www.brilliantvision.com
415.922.9500 www.pacificvision.org
Issue 046 September 2012 efocus Excellence in Co-Managed Care P A C I F I C V I S I O N I N S T I T U T E Life in Focus 415.922.9500 www.pacificvision.org Last month, we held a dinner with the Bay Area
Robert A. Latkany, MD, Amit R. Chokshi, MD, Mark G. Speaker, MD, PhD, Jodi Abramson, MD, Barrie D. Soloway, MD, Guopei Yu, MD, MPH
Intraocular lens calculations after refractive surgery Robert A. Latkany, MD, Amit R. Chokshi, MD, Mark G. Speaker, MD, PhD, Jodi Abramson, MD, Barrie D. Soloway, MD, Guopei Yu, MD, MPH Purpose: To evaluate
Long-term stability of the posterior cornea after laser in situ keratomileusis
ARTICLE Long-term stability of the posterior cornea after laser in situ keratomileusis Joseph B. Ciolino, MD, Stephen S. Khachikian, MD, Michael J. Cortese, OD, Michael W. Belin, MD PURPOSE: To study long-term
Cataract Surgery after Myopic Refractive Procedures. Ray Guard Eye Center Huang Wei-Jen, MD
Cataract Surgery after Myopic Refractive Procedures Ray Guard Eye Center Huang Wei-Jen, MD Financial Disclosures : * No financial interest on products mentioned Cataract Surgery after Myopic Refractive
Ziemer GALILEI Experts Meeting. American Academy of Ophthalmology Orlando, Florida 1
Ziemer GALILEI Experts Meeting American Academy of Ophthalmology Orlando, Florida 1 Welcome GALILEI Experts Meeting Mr. Sandro Palumbo Vice President Marketing Ziemer Ophthalmic Systems AG 2 Programme
Comparison of 2 laser instruments for measuring axial length
ARTICLE Comparison of 2 laser instruments for measuring axial length Kenneth J. Hoffer, MD, H. John Shammas, MD, Giacomo Savini, MD PURPOSE: To compare axial length (AL), anterior chamber depth (ACD),
Refractive Surprises In Post Radial Keratotomy Cataract Surgery And Review Of Literature To Calculate Lens Power In Post Refractive Surgery Cases
Refractive Surprises In Post Radial Keratotomy Cataract Surgery And Review Of Literature To Calculate Lens Power In Post Refractive Surgery Cases Dr. Devdatt. S Raut, MBBS. Dr. Suresh Ramchandani, MS.,DNB.,DOMS,.
Kerry D. Solomon, MD, is Director of the Carolina Eyecare Research Institute at Carolina Eyecare Physicians in Charleston, S.C.
I think the ideal diagnostic technology for all of us would be a device where we could take a measurement, make an adjustment based on the patient s history, including past surgery, and come up with an
Making the Most of High-tech Biometry
4/2/2014 Making the Most of High-tech Biometry Today s advanced technology calls for a well-informed user in order to optimize results. Here s help. By Christopher Kent Senior Editor As cataract surgery
Ectasia Risk Scoring System (ERSS): Limitations and Variability in Predictive Value
Ectasia Risk Scoring System (ERSS): Limitations and Variability in Predictive Value Jay S. Pepose, M.D., Ph.D. Director, Pepose Vision Institute Professor of Clinical Ophthalmology Washington University
IOLMaster 500. Excellence in Biometry. Precision. Simplicity. Outcomes.
IOLMaster 500 Excellence in Biometry. Precision. Simplicity. Outcomes. 2 IOLMaster 500 The gold standard in biometry is evolving to meet today s challenges Mastery is achieved through continuous practice
OMNI EYE SPECIALISTS. The Intraocular Lens
OMNI EYE SPECIALISTS Intraocular Lens Options In Cataract Surgery Or Refractive Lens Exchange Surgery Your decision to have vision surgery is important and the doctors at Omni Eye Specialists will explain
What is the main target for all phaco surgeons?
CORRECTION C O OF ASTIGMATISM DURING CATARACT SURGERY Abdallah dllh K. Hassouna, M.D. Sherein S. Wahba, M.D. Ain Shams University 2009 Main target What is the main target for all phaco surgeons? Main Target
Cataract Testing. What a Patient undergoes prior to surgery
Cataract Testing What a Patient undergoes prior to surgery FINANCIAL DISCLOSURE I have no financial interest or relationships to disclose What do most Technicians find to be the most mundane yet very important
LASER IN SITU KERATOMILEUSIS (LASIK) IS GAINING IN
Correcting the Corneal Power Measurements for Intraocular Lens Power Calculations After Myopic Laser In Situ Keratomileusis H. JOHN SHAMMAS, MD, MAYA C. SHAMMAS, BS, ANTOINE GARABET, MD, JENNY H. KIM,
Estimation of true corneal power after keratorefractive surgery in eyes requiring cataract surgery: BESSt formula
J CATARACT REFRACT SURG - VOL 32, DECEMBER 2006 ARTICLES Estimation of true corneal power after keratorefractive surgery in eyes requiring cataract surgery: BESSt formula Edmondo Borasio, MedCBQ Ophth,
When To Laser, When To Implant, When To Do Both
When To Laser, When To Implant, When To Do Both Scott MacRae, MD Professor of Ophthalmology Professor of Visual Sciences StrongVision Refractive Surgery Center University of Rochester Eye Institute Refractive
LASIK/PRK following previous eye Surgery
AAO San Francisco 2009 LASIK/PRK following previous eye Surgery A. John Kanellopoulos, MD Associate Clinical Professor, NYU Medical School Director: Laservision.gr Eye Institute, Athens, Greece www.brilliantvision.com
Comparison Combined LASIK Procedure for Ametropic Presbyopes and Planned Dual Interface for Post-LASIK Presbyopes Using Small Aperture Corneal Inlay
Comparison Combined LASIK Procedure for Ametropic Presbyopes and Planned Dual Interface for Post-LASIK Presbyopes Using Small Aperture Corneal Inlay Minoru Tomita, MD, PhD 1,2 1) Shinagawa LASIK, Tokyo,
Keratoconus Detection Using Corneal Topography
Keratoconus Detection Using Corneal Topography Jack T. Holladay, MD, MSEE, FACS ABSTRACT PURPOSE: To review the topographic patterns associated with keratoconus suspects and provide criteria for keratoconus
Intraocular lens (IOL) power calculations for cataract
Intraocular lens power calculation after incisional and thermal keratorefractive surgery Mark Packer, MD, Laurie K. Brown, COMT, COE, Richard S. Hoffman, MD, I. Howard Fine, MD Purpose: To evaluate the
BESSt 2.0 IOL Power Calculator - REFERENCE GUIDE
BESSt 2.0 IOL Power Calculator - REFERENCE GUIDE Introduction BESSt 2.0 IOL Power Calculator was designed to allow more accurate corneal and IOL power estimation in eyes needing either cataract or clear
Calculation of Intraocular Lens Power Using Orbscan II Quantitative Area Topography After Corneal Refractive Surgery
ORIGINAL ARTICLE Calculation of Intraocular Lens Power Using Orbscan II Quantitative Area Topography After Corneal Refractive Surgery Carlos G. Arce, MD; Eduardo S. Soriano, MD; Robert W. Weisenthal, MD;
Insert to October 2014. Sponsored by OCULUS Optikgeräte GmbH EXPERT STRATEGIES FOR YOUR DAILY PRACTICE. Pentacam Take a closer look.
Insert to October 2014 Sponsored by OCULUS Optikgeräte GmbH EXPERT STRATEGIES FOR YOUR DAILY PRACTICE Pentacam Take a closer look. Contents Improving Quality of Vision After Cataract Surgery... 3 BY H.
efocus Success strategies for patient education in primary eye care practice
Issue 044 March 2012 efocus Excellence in Co-Managed Care P A C I F I C V I S I O N I N S T I T U T E Life in Focus 415.922.9500 www.pacificvision.org Success strategies for patient education in primary
ADVANCED IOL POWER CALCULATIONS. Jack T. Holladay, MD, MSEE, FACS
Jack T. Holladay, M.D., M.S.E.E., F.A.C.S. ADVANCED IOL POWER CALCULATIONS Jack T. Holladay, MD, MSEE, FACS I. Formulas and Measurements A. Variables Used to Predict ACD 1. Binkhorst 2-1981 - AL 2. Holladay
ADVANCED IOL POWER CALCULATIONS. Jack T. Holladay, MD, MSEE, FACS
Jack T. Holladay, M.D., M.S.E.E., F.A.C.S. ADVANCED IOL POWER CALCULATIONS Jack T. Holladay, MD, MSEE, FACS I. Formulas and Measurements A. Variables Used to Predict ACD 1. Binkhorst 2-1981 - AL 2. Holladay
Laser Refractive Cataract Surgery with the LenSx Laser
Laser Refractive Cataract Surgery with the LenSx Laser a Novartis company LenSx Laser 2 3 An Evolving Definition of Cataract Average Age of US Cataract Patient is Projected to Decline Today: earlier diagnosis
How To Treat Eye Sight Problems With Eye Care
Dealing With The Refractive Surprise Richard S. Hoffman, MD Clinical Associate Professor of Ophthalmology Casey Eye Institute Oregon Health and Science University No Financial Interest Why The Surprise?
Is there a fundamental limit of efficacy when aberrations arising from one point along visual axis (lens) are corrected at another point (cornea)?
Is there a fundamental limit of efficacy when aberrations arising from one point along visual axis (lens) are corrected at another point (cornea)? Ming Wang, M.D.,Ph.D. Medical Director of Refractive Surgery,
IOLMaster 500. Technical Data. Experience the essence of non-contact biometry
Technical Data Onse veliquat praestie dipisci liquat eu feugait at non utatum do exerit lummodigna IOLMaster 500 Measurement range Axial length 14 38 mm Corneal radii 5 10 mm Anterior chamber depth 1.5
Map Interpretation Guide. Map Interpretation Guide. Software Version 5.2
Map Interpretation Guide Map Interpretation Guide Software Version 5.2 Map Interpretation Guide Software Version 5.2 contents Foreword... 4 Introduction... 5 Getting Started... 6 1 The Refractive Report...
articles Intraocular lens power calculation after corneal refractive surgery: Double-K method Jaime Aramberri, MD
articles Intraocular lens power calculation after corneal refractive surgery: Double-K method Jaime Aramberri, MD Purpose: To determine the accuracy of a method of calculating intraocular lens (IOL) power
Challenging Refractive Surgery Cases. Vance Thompson, MD, FACS Refractive and Cataract Surgery Vance Thompson Vision Sioux Falls, South Dakota
Challenging Refractive Surgery Cases Vance Thompson, MD, FACS Refractive and Cataract Surgery Vance Thompson Vision Sioux Falls, South Dakota Financial Disclosures Research/consulting: Alcon AMO B & L
The Pentacam: Offering a Clearer View
Supplement to Sponsored by an educational grant from Oculus, Inc. February 2008 The Pentacam: Offering a Clearer View Densitometry software for cataracts Topography for premium-channel cataract surgery
Surgical Advances in Keratoconus. Keratoconus. Innovations in Ophthalmology. New Surgical Advances. Diagnosis of Keratoconus. Scheimpflug imaging
Surgical Advances in Keratoconus Keratoconus Ectatic disorder 1 in 1,000 individuals Starts in adolescence & early adulthood Uncertain cause 20% require corneal transplant Innovations in Ophthalmology
Biometry for Refractive Lens Surgery
3 Biometry for Refractive Lens Surgery Mark Packer, I. Howard Fine, Richard S. Hoffman CORE MESSAGES 2 Achieving emmetropia in refractive lens surgery depends on accurate biometry and IOL power calculation.
WVI Co-management Update 2012
WVI Co-management Update 2012 Ming Wang, MD, PhD Clinical Associate Professor of Ophthalmology, UT International President, Shanghai Aier Eye Hospital Director, Wang Vision Institute Attending Surgeon,
Standardized Analyses of Correction of Astigmatism With the Visian Toric Phakic Implantable Collamer Lens
Standardized Analyses of Correction of Astigmatism With the Visian Toric Phakic Implantable Collamer Lens Donald R. Sanders, MD, PhD; Edwin J. Sarver, PhD ABSTRACT PURPOSE: To demonstrate the methodology
Incision along Steep Axis
Toric IOL An option or a must? ~ 15% cataract surgical patients >1.5 D Options: spectacles, CLs, Incision along steep axis, LRI, AK, toric IOL, Excimer Laser or a combination Walter J. Stark, MD Professor
Conductive keratoplasty (CK) utilizes radiofrequency energy. Original Article
Original Article Comparing the Rate of Regression after Conductive Keratoplasty with or without Prior Laser-Assisted in situ Keratomileusis or Photorefractive Keratectomy Majid Moshirfar, Erik Anderson
AVOIDING VISUAL COMPLAINTS WITH PREMIUM IOLS Total corneal power must be evaluated to achieve success with multifocal and toric IOLs.
Supplement to October 2013 ALL-IN-ONE The most complete solution for refractive and cataract surgery. CONTENTS TECHNOLOGICAL ADVANCES OF THE GALILEI All you need for daily clinical practice, in one device.
Techniques for Enhancing Cataract Surgery Patients with Residual Refractive Error. Director of Cornea Center For Excellence In Eye Care Miami, FL
Techniques for Enhancing Cataract Surgery Patients with Residual Refractive Error William Trattler, MD Director of Cornea Center For Excellence In Eye Care Miami, FL 1 Financial Disclosures Consulting
LENSTAR LS 900 Improving outcomes
LENSTAR LS 900 Improving outcomes Tradition and Innovation Since 1858, visionary thinking and a fascination with technology have guided us to develop innovative products of outstanding reliability: Anticipating
OCULUS PENTACAM BASIC CLASSIC HR
OCULUS PENTACAM BASIC CLASSIC We focus on progress Many Patients have Apprehensions before an Examination. > The eye is an extremely sensitive area Loss or impairment of sight always produces anxiety.
Pentacam. The. The gold standard in anterior segment tomography. Supplement to February 2011
Supplement to February 2011 The Pentacam The gold standard in anterior segment tomography. Produced under an educational grant from Oculus Optikgeraete GmbH. THE PENTACAM The Pentacam: An Impressive Technology
How do you adjust for IOP in a LASIK patient?
How do you adjust for IOP in a LASIK patient? Sunita Radhakrishnan, M.D Glaucoma Center of San Francisco Glaucoma Research and Education Group Principle of applanation tonometry Imbert Fick law Applanation
FIRST EXPERIENCE WITH THE ZEISS FEMTOSECOND SYSTEM IN CONJUNC- TION WITH THE MEL 80 IN THE US
FIRST EXPERIENCE WITH THE ZEISS FEMTOSECOND SYSTEM IN CONJUNC- TION WITH THE MEL 80 IN THE US JON DISHLER, MD DENVER, COLORADO, USA INTRODUCTION AND STUDY OBJECTIVES This article summarizes the first US
The Laser Eye Center s surgeons are sub-specialized in both cornea and refractive surgery, and are among the region s most experienced surgeons.
Laser Eye Center 1 About Us The Laser Eye Center at AUBMC is a state-of-the-art, continuously updated facility with a mission to provide high-precision refractive surgery to correct visual errors. Staffed
CONSENT FOR CATARACT SURGERY
CONSENT FOR CATARACT SURGERY INTRODUCTION The natural crystalline lens can become cloudy due to aging, trauma, disease or medications. This condition is called a cataract. When cataracts become visually
VA high quality, complications low with phakic IOL
Page 1 of 5 VA high quality, complications low with phakic IOL Use in keratoconus will continue, one surgeon predicts; another ponders long-term safety Nov 1, 2007 By:Nancy Groves Ophthalmology Times Several
Managing Astigmatism in your Cataract Practice
Managing Astigmatism in your Cataract Practice KAREN S. BACHMAN, COMT, COE, OCS THE EYE INSTITUTE OF UTAH Disclaimer Ms. Bachman: Member of Alcon Speakers Alliance Mr. Larson: Employee of Corcoran Consulting
Maximizing Your Cataract Surgery Outcomes in Corneal Disease
Maximizing Your Cataract Surgery Outcomes in Corneal Disease W. Barry Lee, M.D., F.A.C.S. Cornea & Refractive Surgery Eye Consultants of Atlanta Piedmont Hospital Co-Medical Director Georgia Eye Bank Atlanta,
Rosario G. Anera, PhD, Jose R. Jiménez, PhD, Luis Jiménez del Barco, PhD, Javier Bermúdez, PhD, Enrique Hita, PhD
Changes in corneal asphericity after laser in situ keratomileusis Rosario G. Anera, PhD, Jose R. Jiménez, PhD, Luis Jiménez del Barco, PhD, Javier Bermúdez, PhD, Enrique Hita, PhD Purpose: To analyze the
From theoretical laser ablation design to real outcomes: implications for optimized corneal refractive surgery
Wavefront Sensing Meeting. Whistler,Canada, Feb 04 From theoretical laser ablation design to real outcomes: implications for optimized corneal refractive surgery Susana Marcos, PhD Instituto de Optica,
Presbyopia modern surgical treatments. Johan Lønsmann Poulsen, Euroeyes
Presbyopia modern surgical treatments Johan Lønsmann Poulsen, Euroeyes Presbyopia the earliest treatments Reading stones Emperor Nero (37-68 AD) Presbyopia design trends c. 1400s c. 1680-1750 c. 1800 1850
Staying on Target With Better Biometry
Insert to Sponsored by an educational grant from Haag-Streit USA January 2010 Staying on Target With Better Biometry A roundtable discussion about the new LENSTAR LS900, the first biometer of the entire
efocus Anterior Segment Case Management Tips on Cornea, External Diseases, Cataract and Lens patient management
Issue 038 November 2010 efocus Excellence in Co-Managed Care PACIFIC V I S I O N I N S T I T U T E Life in Focus 415.922.9500 www.pacificvision.org Anterior Segment Case Management Tips on Cornea, External
Calculation of intraocular lens (IOL) power for
A New Method of Calculating Intraocular Lens Power After Photorefractive Keratectomy Nicola Rosa, MD; Luigi Capasso, MD; Antonio Romano, MD ABSTRACT PURPOSE: To find a method of calculating intraocular
Informed Consent for Refractive Lens Exchange (Clear Lens Replacement)
Mark Packer, M.D. Informed Consent for Refractive Lens Exchange (Clear Lens Replacement) This surgery involves the removal of the natural lens of my eye, even though it is not a cataract. The natural lens
OCULUS Pentacam Pentacam HR
OCULUS Pentacam Pentacam HR The Gold Standard in Anterior Segment Tomography We focus on progress Providing the best care to your patients > The eye is extremely sensitive. Loss or impairment of sight
New topographic custom ablation procedure for treating irregular astigmatism post keratoplasty with high frequency (1 KHz) excimer laser.
New topographic custom ablation procedure for treating irregular astigmatism post keratoplasty with high frequency (1 KHz) excimer laser. G. COLONNA M.D., G. Lorusso M.D., S. Santoro M.D. ESCRS Berlin
Mark E Johnston MD FRCSC www.nebraskaeye.com www.markjohnston.yourmd.com
EBRASKA LASER EYE ASSOCIAT Mark E Johnston MD FRCSC www.nebraskaeye.com www.markjohnston.yourmd.com Pseudoexfoliation Selective laser trabeculoplasty Foldable Acrylic 1995 Intraocular pressure after
Phacoemulsification: Considerations for Astigmatism Management Jason P. Brinton, MD and Thomas A. Oetting, MS, MD June 10, 2011
Phacoemulsification: Considerations for Astigmatism Management Jason P. Brinton, MD and Thomas A. Oetting, MS, MD June 10, 2011 Introduction Patient expectations for cataract surgery have increased significantly
Diagnostic Technologies for Enhanced Cataract Surgery Outcomes
Diagnostic Technologies for Enhanced Cataract Surgery Outcomes Surgeons discuss their preferred tools for achieving superior results. BY WARREN E. HILL, MD; CARLO LACKERBAUER, MD; THOMAS OLSEN, MD, PHD;
INTRACOR. An excerpt from the presentations by Dr Luis Ruiz and Dr Mike Holzer and the Round Table discussion moderated by Dr Wing-Kwong Chan in the
INTRACOR An excerpt from the presentations by Dr Luis Ruiz and Dr Mike Holzer and the Round Table discussion moderated by Dr Wing-Kwong Chan in the 1 Dr Luis Ruiz Presbyopia treatment with INTRACOR Luis
Pseudo-accommodative Cornea (PAC) for the Correction of Presbyopia
Pseudo-accommodative Cornea (PAC) for the Correction of Presbyopia Alaa El Danasoury, FRCS Magrabi Hospitals & Centers Surgical options for the Correction of Presbyopia Monovision Reversal of Presbyopia:
IOLMaster with Software Version V 3.0
IOLMaster with Software Version V 3.0 The aim of this little paper is to provide you with a condensed summary of everything you need to know about the IOLMaster and the new software version V 3.0 and higher.
Clinical Study Minimizing Surgically Induced Astigmatism at the Time of Cataract Surgery Using a Square Posterior Limbal Incision
Ophthalmology Volume 2011, Article ID 243170, 4 pages doi:10.1155/2011/243170 Clinical Study Minimizing Surgically Induced Astigmatism at the Time of Cataract Surgery Using a Square Posterior Limbal Incision