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A computer model for the evaluation of the effect of corneal topography on optical performance.

Abstract：

:We developed a method that models the effect of irregular corneal surface topography on corneal optical performance. A computer program mimics the function of an optical bench. The method generates a variety of objects (single point, standard Snellen letters, low contrast Snellen letters, arbitrarily complex objects) in object space. The lens is the corneal surface evaluated by a corneal topography analysis system. The objects are refracted by the cornea by using raytracing analysis to produce an image, which is displayed on a video monitor. Optically degraded images are generated by raytracing analysis of selected irregular corneal surfaces, such as those from patients with keratoconus and those from patients having undergone epikeratophakia for aphakia.

journal_name

Am J Ophthalmol

journal_title

American journal of ophthalmology

authors

Camp JJ,Maguire LJ,Cameron BM,Robb RA

doi

10.1016/s0002-9394(14)74602-1

subject

Has Abstract

pub_date

1990-04-15 00:00:00

pages

379-86

issue

4

eissn

0002-9394

issn

1879-1891

pii

S0002-9394(14)74602-1

journal_volume

109

pub_type

杂志文章

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