Morphological Classification of the Lens Opacity of Age-Related Cataract in One Area of Seoul.

Kim, In Sik; Kim, Won Sik; Lee, Youn O; Kim, Jae Chan; Shyn, Kyung Hwan

Original Article

Journal of the Korean Ophthalmological Society 1990;31(6):725-731.
Published online June 1, 1990.

Morphological Classification of the Lens Opacity of Age-Related Cataract in One Area of Seoul.

In Sik Kim, Won Sik Kim, Youn O Lee, Jae Chan Kim, Kyung Hwan Shyn

Department of Ophthalmology, College of Medicine, Chung Ang University, Korea.

서울 일부지역 노년층에 있어서의 노인성 백내장의 형태학적 분류

김재찬(Jae Chan Kim),신경환(Kyung Hwan Shyn),김인식(In Sik Kim),김원식(Won Sik Kim),이윤오(Youn O Lee)

Abstract

The epidemiological study to evaluate the prevalence rate and the morphological classification was performed in Do Bong-Gu, Seoul from May 9, 1989 to May 25, 1989. However, this report was a part of preliminary data to make a further population based epidemiological study to evaluate the prevalence rate and morphological classification of the age-related cataract in Korea. The results of this study are as follow: 1. The total examinees were 100;39 male and 61 female, and they were over 40 years of age who complained of recent visual acuity decrement. 2. 91 persons had lens opacity in different decement. 3. The prevalence rate of cataract was 89.7% in male and 93.4% in female and the sexual difference shows that the female had more higher frequency of lens opacity. 4. The classification of lens opacity according to the stage showed that the immature cataract was the most frequent type. The cortical cataract was the most frequent type and the mixed type was second in order by the morphological classification. 5. The prevalence rate of cataract in age had strong tendency to increase in older age and in 80s the rate was in 100%.

Key Words: cataract;epidemiology;lens opacity;prevalence rate