Boston 2010

Posters On Demand

Poster P232
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One- and 2-Year Clinical Outcomes of LASIK for High Hyperopia

Dan Z. Reinstein, MD, FRCSC, United Kingdom

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About the Presenter:
Professor Dan Reinstein is an American born British educated and internationally sub-specialized refractive surgeon. Having decided on a career in refractive surgery he met John Marshall toward the end of his medical studies when writing his Cambridge (1989) dissertation on lasers in ophthalmology. Under the mantle of an M.D. thesis supervised and inspired by Prof. Marshall, he spent several years at Cornell as Bioengineering Fellow under Professor D. Jackson Coleman developing a method of studying the micro anatomical structure of the cornea in vivo with the ultimate goal of applying this to the study and improvement of excimer corneal and phakic intraocular refractive surgery. 3D VHF digital ultrasound scanning is still the most precise method of layered corneal and anterior segment biometric mapping providing ultrasound epithelial mapping (UEM ), stromal component of the flap and residual stromal bed in 3D with 1 micron precision. The Artemis (a commercial prototype of this technology) became a vehicle to many discoveries and developments in refractive surgery since 1992: Diagnosing the cause of 'central islands'; the epithelium is not a layer of even thickness; UEM changes in PRK; paradoxical power shifts produced by epithelium; 3D flap profile and precision characteristics; diagnosis in flap and optical complications after excimer surgery; proving biomechanical thickening of the peripheral stroma after central ablation; modelling the imprecisions responsible for most iatrogenic ectasia; diagnosing keratoconus despite normal topography; stromal surface topography based ablations; UEM digital subtraction modelling of trans epithelial PTK; proving anterior chamber diameter (WTW) is not sufficiently correlated to sulcus diameter and then developing algorithms for enhancing ICL sizing safety; enhancing safety of high hyperopic LASIK through UEM; extending the range of myopic LASIK through ablative-biomechanical (dual-mechanism) ablation profiles; developing an method of treating presbyopia by excimer laser. Professor Reinstein's talk will focus on refractive surgical developments on the verge of commercialization and more advanced technologies for the day after tomorrow.

Reinstein, Dan Z.; Archer, Timothy J.; Gobbe, Marine

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