Experimental study of small intraocular lenses using an eye model.
Contrast and glare tests were performed on small intraocular lenses (IOLs) 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 microscope. Contrast and glare disability tests were done using the MCT-8000 contrast tester and the Miller-Nadler glare tester. No effect on contrast sensitivity attributable to glare was observed, but under severe glare light conditions a faint reflection around the circumference of the optic was found. Questionnaires from patients implanted with small optic IOLs confirmed that this phenomenon was similar to their symptoms.
Kora
Y
Y
Showa University Fujigaoka Hospital, Kanagawa, Japan.
Marumori
M
M
Kizaki
H
H
Yaguchi
S
S
Kozawa
T
T
D015350:Contrast Sensitivity; D005123:Eye / Q000033:anatomy & histology; D006801:Humans; D007910:Lenses, Intraocular / Q000009:adverse effects*; D008027:Light; D008953:Models, Anatomic; D012542:Scattering, Radiation; D011795:Surveys and Questionnaires; D014786:Vision Disorders / Q000209:etiology