Publications and Presentations Susan J. Leat

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1 Publications and Presentations Susan J. Leat Selected Invited Addresses Leat S.J. (2010) Prevalence of binocular vision anomalies in the elderly. Press conference presentation at the American Academy of Optometry, San Francisco Leat S.J. (2011) with Balsam Alabdulkader. Reading Additions in Children and Young Adults with Low Vision-Effects on Reading Performance, CNIB, Toronto Leat S.J. (2011) with Deborah Gold The legibility of prescription medicine labels: A review of current guidelines and gaps, CNIB, Toronto. Leat S.J. (2011) with Norris Lam Investigating Optometric Vision Care for People with Vision Impairment, CNIB Continuing Education Conference, Feb, Toronto Leat S.J. (2010) Visual acuity and contrast sensitivity development in infants and children. 21 st International Congress of Optometry, Contactology and Ophthalmic Optics. National College of Opticians-Optometrists of Spain, Madrid, Spain, Leat S.J. (2009) Visual field loss, attention and mobility. In Low Vision Field Loss Symposium, American Academy of Optometry. US Leat S.J. (2008) Pediatric Low Vision Assessment and Management, Vision 2008, Montreal, Canada. Leat S.J. (2008) When do kids need glasses? American Academy of Optometry, US Leat SJ (2007) Down syndrome, refraction, accommodation and early literacy skills. Keynote speaker at the Asia Pacific Optometry Congress. Leat S.J. (2007) Useful Field of View, Mobility and Visual Impairment, Canadian Optometry Conference on Vision Science, Waterloo. Leat SJ (2005) Low vision research topics. School of Optometry, The University of Manchester Leat SJ (2004) Enhancing spatial information by digital image processing Does it increase visibility for people with vision loss. York University.

2 Leat SJ (2004) What s New in Low Vision Rehabilitation. Vision Quest 04. Windsor, Ontario Leat SJ (2003) An introduction to Pediatric Optometry; The importance of eye care for kids, and the management of common childhood disorders. Universiti Kebangsaan, Kuala Lumpur, Malaysia. Leat SJ (2003) Digitally enhancing spatial information does it increase visibility for people with visual impairment? Queensland University of Technology Leat SJ. (2003) Putting back the missing information - Can digital image processing improve the visibility of images for people with low vision? Hong Kong Polytechnic University. Leat SJ (2003) Low vision management of the patient with age-related macular degeneration. Key-note speaker at CE Weekenders, Queensland University of Technology. Leat SJ (2003) Visual field loss assessment and management. Presented with Jan Lovie-Kitchin, Queensland University of Technology Leat SJ (2003) Pediatric Low Vision Management. Invited lecture at Hong Kong Polytechnic University. Leat SJ (2003) Low Vision Management of the Patient with ARM. Hong Kong Society of Professional Optometrists. Leat SJ (2002) Low vision management of the Patient with Age-related Maculopathy. International American Academy of Optometry, Munich. Leat S.J. (2001) Putting back the missing information - Can digital image processing improve the visibility of images for people with low vision? School of Optometry, Waterloo Research Seminar Series Leat S.J. (1999) Crowding in central and eccentric vision. School of Optometry, Waterloo Research Seminar Series Leat S.J. (1997) Crowding in eccentric vision - the effects of contour interaction and attention. Am. Acad. Optom. Symposium on Eccentric Fixation, San Antonio. Leat S.J. (1995) Contrast sensitivity charts: predictor of reading rates and validity. University of California, Berkeley, School of Optometry Leat S.J. (1995) Contrast sensitivity charts: predictor of reading rates and validity. New South Wales School of Optometry, Australia

3 Leat SJ (1994) The importance of measuring accommodation in infants and special populations. 4th Canadian Universities Conference in Optometry. Ontario, Canada. Books Leat S.J., Shute R. H, and Westall C.A. (1999) Assessing Children s Vision: a handbook Published by Butterworth-Heinemann. Book Chapters Pediatric Assessment in Optometry: Science, Techniques and Clinical Management edited by Mark Rosenfield and Nicola Logan. Due to be published in Screening and diagnosis in National Retinoblastoma Strategy Guidelines. Colead author with Vasudha Erranguntla. Project co-chairs; Brenda Gallie and Peggy Gronsdahl. Prepared in 2007 Future Care and Research Directions in National Retinoblastoma Strategy Guidelines. Contributing author. Project co-chairs; Brenda Gallie and Peggy Gronsdahl. Prepared in 2007 Selected Publications (peer reviewed) Nandakumar K, Evans MA, Leat SJ. (2011) Bifocals in Down syndrome study (BiDS): Analysis of video recorded sessions of literacy and visual perceptual skills. Accepted for publication in Clin Exp Optom Leat SJ. To prescribe or not to prescribe? (2011) Guidelines for prescribing for refractive errors in children. Acccepted for publication in Clin Exp Opt. Leat SJ, Mittelstaed A. Machan CM, Hrynchak PK, Irving E. (2011) Prescribing patterns for hyperopia in children in a University-based optometry clinic. Accepted for publication in Optom Vis Sci. Almoqbel FM, Yadav NK, Head LM, Leat SJ, Irving EL. (2011) Effects of sweep VEP parameters on visual acuity and contrast thresholds in children and adults. Graefes Arch Clin Exp Ophthalmol. 249 (4),

4 Nandakumar K, Leat SJ. (2010) Bifocals in children with Down Syndrome (BiDS) Visual acuity, accommodation and early literacy skills. Acta Ophthalmol 88, e Yadav NK, Almoqbel FM, Head LM, Irving EL, Leat SJ. (2009) Threshold determination in sweep VEP and the effects of criterion. Doc Ophthalmol 119 (Dec), Mei M, Leat SJ. (2009) Quantitative assessment of perceived visibility enhancement with image processing for single face images a Preliminary Study. Invest Ophthalmol Vis Sci 50, Leat, SJ. Mei M. (2009) Custom-devised and generic digital enhancement of images for people with maculopathy. Ophthal Phys Opt 29, Nandakumar K, Leat SJ. (2009) Bifocals in Down syndrome study (BiDS) Study design and baseline results of visual function. Optom Vis Sci 86, Qiu J, Leat SJ, (2009) Functional deficits in early stage atrophic age-related maculopathy. Clin Exp Optom. 92, Leat SJ, Lovie-Kitchin JE. (2008) Visual function, visual attention and mobility performance in low vision. Optom. Vis. Sci. 85, Almoqbel, F, Leat SJ, Irving EL, (2008) A review of the technique, validity and clinical use of the sweep VEP. Ophthal. Physiol. Opt. 28, Mei M. Leat, S.J. (2007) Supra-threshold Contrast Matching in Maculopathy. Invest. Ophthalmol Vis Sci. 48, Mei M, Leat S.J, Hovis, J. (2007) Supra-threshold Contrast Matching and the Effects of Contrast Threshold and Age. Clin Exp Optom 90, Leat S.J., Mohr A. (2007) Accommodative response in pre-presbyopes with visual impairment. Invest. Ophthalmol Vis Sci. 48(8): Leat S.J., Lovie-Kitchin J.E. (2006) Visual Impairment and the Useful Field of Vision. Ophthal. Physiol. Opt.; 26: Leat S.J., Lovie-Kitchin J.E. (2006) Mobility performance Experience gained in designing a mobility course. Clin. Exp. Optom. 89: Leat S.J., Omoruyi G. Kennedy A, Jernigan, E. (2005) Generic and Customised Digital Image Enhancement filters for the Visually Impaired. Vis. Res, 45:

5 Leat S.J., Wegmann D, (2004) Clinical testing of contrast sensitivity in children: Age-related norms and validity. Optom. Vis. Sci., 81(4): Hovis JK, Leat S.J., Epp K. (2003) The UWCDot Color Vision Test and Low Vision. Ophthal. Physiol. Opt. 23: Moussa M., Leat S.J., Faubert J. (2003) The Moving Dynamic Random-dot Stereosize Test (MDRS): validity and repeatability. J. Pediatr. Ophthalmol. Strab.40: Hovis J, Leat S.J. Heffernan S.M. (2002) The validity of the University of Waterloo Colored Dot Test (UWCDot) for color vision testing of adults and pre-schoolers. Optom. Vis. Sci. 79: Leat S.J., Legge G, Bullimore M. (1999) What is low vision - a re-evaluation of definitions. Optom. Vis. Sci. 76: Leat S.J., Li W., Epp K. (1999) Crowding in central and eccentric vision - the effects of contour interaction and attention. Invest. Ophthalmol. Vis. Sci. 40: Leat S.J., Woo G.C. (1997). The validity of current clinical tests of contrast sensitivity and their ability to predict reading speed in low vision. Eye 11: Leat S.J., Gargon J. (1996). Accommodation in children and young adults using dynamic retinoscopy. Ophthal. Physiol. Opt. 16: Leat S.J. (1996). Reduced accommodation in children with cerebral palsy. Ophthal. Physiol. Opt. 16: Leat S.J., Fryer A., Rumney N.J. (1994). Outcome of low vision aid provision; The effectiveness of a low vision clinic. Optom. Vis. Sci. 71; Leat S.J., Munger R. (1994). A new application of band-pass fast Fourier transforms to the study of reading requirements. Vision Science and its Applications, Opt. Soc. Am., Technical Digest Series Vol 2; Rumney N.J., Leat S.J. (1994). Why do low vision patients still read slowly with a low vision aid?. in Low Vision. Research and New Developments in Rehabilitation. Ed. Kooijiman A.C., Looijestijn, P.L., Welling J.A., van der Wildt GJ. IOS Press, Amsterdam p Leat S.J., Woodhouse J.M. (1993). Reading performance with low vision aids and contrast sensitivity. Ophthal. Physiol. Opt. 13, 9-16.

6 Woodhouse, M.J., Meades J.S., Leat S.J., Saunders K.J. (1993). Reduced accommodation in children with Down's Syndrome. Invest. Opthalmol. Vis. Sci. 34, Leat S.J., Rumney N.J. (1992). Modulation transfer function of low vision aids; comparison with spatial frequency requirements in low vision. Applied Optics 31, Leat S.J., Karadsheh S. (1991). The use and non-use of low vision aids by visually-impaired children. Ophth. Physiol. Opt. 11, Leat S.J., Millodot M. (1990). Contrast discrimination in normal and impaired human vision. Clin. Vis. Sci. 5, Leat S.J., Rumney N.J. (1990). The experience of a university based low vision clinic. Ophthal. Physiol. Opt. 10, Rumney N.J., Leat S.J. (1990). Spatial, temporal and luminance requirements in low vision. Low Vision Ahead II, International Conference on Low Vision, Melbourne, Australia. Leat S.J., Woodhouse J.M. (1984). Rivalry with continuous and flashed stimuli as a measure of ocular dominance across the visual field. Perception 13, Maddock R.J., Millodot M., Leat S.J., Johnson C.A. (1981). Accommodation responses and refractive error. Invest. Ophthalmol. Vis. Sci. 20, Selected Recent Presentations at Scientific conferences Alabdulkader B, Leat SJ (2011) Reading Additions for Children and Young Adults with Low Vision - Effect on Reading Performance. Child Vision Research Society, Netherlands Leat SJ, Almoqbel F, Irving EL (2011) Development of visual acuity and contrast sensitivity in children: comparison of sweep VEP and psychophysics. Child Vision Research Society, Netherlands Leat SJ, Briand K, Hamaed N (2011) Near additions and reading performance in pre-presbyopes with low vision. 10 th International Conference on Low Vision, Kuala Lumpur, Malaysia, Feb 2011

7 Leat SJ, Gold D, Pickering D, Gordon K, Hodge W (2011) A randomized clinical trial of Closed Circuit TV (CCTV) and eccentric viewing training for reading in people with age-related maculopathy. 10 th International Conference on Low Vision, Kuala Lumpur, Malaysia, Feb 2011 Jae-Myuong Seo, Leat SJ, (2011) The association between visual function and perceived disability for near and distance tasks. 10 th International Conference on Low Vision, Kuala Lumpur, Malaysia, Feb 2011 Almoqbel F, Irving EL, Leat SJ (2010) Development of visual acuity and contrast sensitivity in children: Comparison of sweep VEP and psychophysics.. American Academy of Optometry, San Fransisco # Leat SJ, Maharaj P, Hrynchak PK, Mittelstaedt A, Machan AM, Irving EL. (2010) Prevalence of binocular vision anomalies in the elderly. American Academy of Optometry, San Fransisco # This study was reported in Primary Care Optometry News Leat SJ, Briand K Hamaed N. (2010) The impact of near additions on reading performance in pre-presbyopes with low vision. American Academy of Optometry, San Fransisco # This study was reported in Primary Care Optometry News Babu RJ, Nandakumar K, Lillakas L, Leat SJ, Irving EL (2010). Eye movement characteristics in Down syndrome. International Vision Science and Optometry Conference, Elite School of Optometry, Chennai, India. Aug 2010 Leat SJ, Mittelstaedt A, Machan CM, Hrynchak PK, Irving EL. (2009) Prescribing for hyperopia and the presence of symptoms in children in a University-based optometry clinic. American Academy of Optometry, Orlando, Nov. Nandakumar K, Leat SJ. (2009) Bifocal prescription in children with Down syndrome (BiDS) Early literacy and reading skills. Child Vision Research Conference, Cardiff, UK. July. Leat SJ, Mittelstaedt A, Machan CM, Hrynchak PK, Irving EL. (2009) Prescribing patterns for hyperopia in children in a University-based optometry clinic. Child Vision Research Conference, Cardiff, UK. July. Babu RJ, Strong GJ, Leat SJ, Irving EL. (2009) The effect of age and a pop out distracter on the attended field of view (AFOV) with divided attention. Invest Ophthalmol Vis Sci 50: E-Abstract Fort Lauderdale,Fl, May

8 Nandakumar K, Leat SJ (2009) Progression in literacy skills with Bifocals in children with Down Syndrome (BiDS). Invest Ophthalmol Vis Sci 50: E- Abstract Fort Lauderdale,Fl, May. Leat SJ, Seo J (2009) Spatial and temporal summation in low vision. Invest Ophthalmol Vis Sci 50: E-Abstract Fort Lauderdale,Fl, May. Almoqbel FM, Head LM, Leat SJ, Irving EL, (2009). Effect of selected stimulus parameters and regression line fitting on visual acuity and contrast thresholds determined by sweep visual evoked potential in children. Invest Ophthalmol Vis Sci 50: E-Abstract Fort Lauderdale,Fl, May. Nandakumar K, Leat SJ (2008) Visual acuity, accommodation, refraction and early literacy skills in children with Down syndrome. International Society for Eye Research, Beijing, China. Sept. Babu RJ, Strong G, Leat SJ, Irving EL (2008) The impact of a pop out distracters on the attended field of view. American Acad Optom. #80091, Anaheim, Oct. Nandakumar K, Leat SJ (2008) Prescribing bifocals in children with Down syndrome (BiDS) - the impact on accommodation, early literacy skills and visual perceptual skills. American Acad. Optom.# Anaheim, Oct. Babu RJ, Leat SJ, Irving EL (2008) Time to collision of looming targets with single and dual visual tasks Invest Ophthalmol Vis Sci. 49:ARVO E- Abstract 759. Fort Lauderdale,Fl, May. Head LM, Almoqbel FM, Yadav NK, Leat SJ, Irving EL (2008) Parameter optimization of sweep visual evoked potential in children and comparison to adults. Invest Ophthalmol Vis Sci. 49:ARVO E-Abstract Fort Lauderdale,Fl, May. Leat SJ, Lovie-Kitchin JE (2008) Does the useful field of view predict orientation and mobility performance in people with visual impairment? Vision 2008 (International Conference on Low Vision). Montreal. July. Leat SJ, (2008) Reduced accommodation in children and young people with low vision - are there clinical implications? Vision 2008 (International Conference on Low Vision). Montreal. July. Leat SJ, Mei M. (2008) Perceived visibility enhancement with digital image processing for people with maculpathy Vision 2008 (International Conference on Low Vision). Montreal. July.

9 Leat SJ, Mei M (2007) Quantitative assessment of improvement in image visibility using digital enhancement for people with low vision. Asia Pacific Optometry Congress, Goa, India. Oct. Nandakumar, K., Leat, S.J. (2007) The Bifocal Correction in Down Syndrome study design and baseline data. American Academy of Optometry, Florida Yadav N., Leat, S.J., Irving, E.L. (2007) Optimization of Sweep Visually Evoked potentials (svep) parameters. American Academy of Optometry, Florida Yadav N, Leat S.J, Irving E, (2007) The optimization of regression line fitting and the effect of luminance and temporal frequency on svep thresholds. BriSCEV - British Society for Clinical Electrophysiology of Vision, London Mei M, Leat S.J. (2007) Objective Assessment of Improved Visibility with Digital Image Enhancement for the Visually Impaired. VSS Sarasota, Florida Qiu, F., Leat, S.J., Simpson, T.L., Campbell M.C.W. (2005) Structural changes measured with optical coherence tomography and functional impairment in early atrophic age-related macular degeneration Preliminary results. Invest. Ophthalmol. Vis. Sci. 46: E-Abstract Raasch TW, Bullimore MA, Jones LA, Kleinstein RN, Leat SJ, Bailey IL, and the LoVIS Study Group. (2001) Low Vision Intervention Clinical Trial Pilot Study Results. Invest. Ophthalmol. Vis. Sci. 42, S855 Bullimore MA, Martin SR, Roosevelt CB, Raasch TW, and the LoVIS Study Group (2000) The development of a battery of functional tests for low vision. Invest. Ophthalmol. Vis. Sci. 41, S2510. Moussa M.A., Leat S.J. (2000) A new approach for using the Randot circles test of stereopsis. Invest Ophthalmol. Vis. Sci. 41: S707 Leat S.J. (1999) Stereopsis in a multiply-challenged population measured with the MDRS Stereosize test. The American Academy of Optometry. Optom. Vis. Sci. 76 Raasch T.W, Bailey I.L, Bullimore M.A., Cutter G.C., Kaminski1 J.E, Kleinstein R.N., Leat S.J. (1998) QOL and visual functioning in low vision patients. Invest. Ophthalmol. Vis. Sci. 39(4) S446 Raasch T.W., Bullimore M.A., Kaminiski J.E., Cutter G.C., Kleinstein R.N., Leat S.J., Bailey I.L. (1997) Repeatability of quality of life measurement in low vision. Optom. Vis. Sci. (Suppl) 74:154