EXPERIMENTAL-STUDY OF SMALL INTRAOCULAR LENSES USING AN EYE MODEL

Contrast and glare tests were performed on small intraocular lenses (I OLs) using a new eye model, which was based on and about the same size as the Gullstrand eye model. Lenses with a small optic diameter were inserted and retinal images were observed under the operating microsco pe. Contrast and glare disability tests were done using the MCT-8000 c ontrast tester and the Miller-Nadler glare tester. No effect on contra st sensitivity attributable to glare was observed, but under severe gl are light conditions a faint reflection around the circumference of th e optic I was found. Questionnaires from patients implanted with small optic IOLs confirmed that this phenomenon was similar to their sympto ms