The Aasesament of Contrast Sensitivity by MCT 8000(R) in Normal Eyes and Peeudophakic Eyes.

Kim, Yong Suk; Yoo, Chin Seong; Kim, Jae Ho

Original Article

Journal of the Korean Ophthalmological Society 1989;30(5):701-708.
Published online May 1, 1989.

The Aasesament of Contrast Sensitivity by MCT 8000(R) in Normal Eyes and Peeudophakic Eyes.

Yong Suk Kim, Chin Seong Yoo, Jae Ho Kim

Department of Ophthalmology, Catholic University, Medical College, Seoul, Korea.

정상안과 인공수정체안에서의 MCT 8000(R) 을 사용한 Contrast Sensitivity 의 비교

김재호(Jae Ho Kim),김용석(Yong Suk Kim),유진성(Chin Seong Yoo)

Abstract

The standard vision test using Snellen acuity is not always an accurate indicat or of functional vision loss. Acuity measures optical blur, but psudophakic eyes frequently do not affect optical blur. Therefore, acuity cannot provide relevant informations on the loss of vision experienced by the patients. Contrast sensitivity, not acuity, has been shown to be effective in determining functional vision loss due to psudophakic eyes. The MCT 8000(R), glare and contrast sensitivity system. was used for measurement of contrast sensitivity in 19 pseudophakic eyes at postoperative 1 month, 18 pseudophakic eyes at post-operative 3 months and 18 normal control eyes. The results were as follows: 1) Contrast sensitivity decreased in pseudophakic eyes compared to normal eyes in four different conditions; day vision, day vision with perpheral glare, night vision and night vision with central glare. 2) In pseudophakic eyes, contrast sensitivity was not different between 1 month and 3 months postoperatively.

Key Words: contrast sensitivity;functional vision;glare;pseudophakia