Sasaki K, Karino K, Kojima M, Sakamoto Y, Takizawa A, Zeinuddin D, Katou N
Department of Ophthalmology, Kanazawa Medical University, Uchinada, Japan.
Dev Ophthalmol. 1987;15:28-36. doi: 10.1159/000414689.
An epidemiological survey of cataract was performed in a limited local population. 1,020 individuals over 40 years of age were examined. The crystalline lens findings were documented by both Scheimpflug and retroillumination photography. Cataractous changes were classified into three groups according to early senile changes, incipient cataractous changes and only prominent cataractous changes. Forms of opacification were classified as cortical, subcapsular, nuclear, mixed type and others. The percent prevalence of cataracts including early senile changes was 33.9% in the 40-year-old population, 62.8% in the 50, 76.2% in the 60, 84.0% in the 70 and 100% for those in their 80s. Prominent cataractous opacification was 1.6% in the 40-year-old population, 3.1% for those in their 50s, 19.0% in their 60s, 28.6% in their 70s and 57.1% in their 80s, respectively. Until age 60, the type of opacification was mainly cortical alone; however, after age 70, cortical opacity accompanied by nuclear and/or capsular opacities increased. The pure nuclear type increased in individuals over 70.
在一个有限的当地人群中进行了白内障的流行病学调查。对1020名40岁以上的个体进行了检查。通过Scheimpflug和后照法摄影记录晶状体的检查结果。白内障变化根据早期老年性变化、初期白内障变化和仅显著的白内障变化分为三组。混浊形式分为皮质性、囊下性、核性、混合型和其他类型。包括早期老年性变化在内的白内障患病率在40岁人群中为33.9%，50岁人群中为62.8%，60岁人群中为76.2%，70岁人群中为84.0%，80岁人群中为100%。显著的白内障混浊在40岁人群中为1.6%，50多岁人群中为3.1%，60多岁人群中为19.0%，70多岁人群中为28.6%，80多岁人群中为57.1%。在60岁之前，混浊类型主要为单纯皮质性；然而，在70岁之后，伴有核性和/或囊膜性混浊的皮质混浊增加。70岁以上个体中纯核性类型增加。
