晶体虹样反光对老年性白内障早期诊断的作用

The role of the lens iridescence in early diagnosis of senile cataract

对88例（175只眼）年龄≥45岁的中老年人晶体,52只眼未成熟白内障以及41只成熟白内障眼的晶体虹样反光进行了研究,并用扫描电子显微镜对新生儿、正常成年人和老年性白内障晶体前囊表面进行了现察。结果显示:晶体前囊虹样反光的发生与年龄成正相关;虹样反光的程度在不同年龄问有显著性差异;在老年性白内障的晶体前囊中可看到不同形式的隆起改变,这可能是由于晶体前囊下上皮细胞水化变性所致。因此建议在老年性白内障的分期中增加一临床前期。

The iridescence of the leases for 175 eyes of 88 cases aged 45 years old or more, 52 eyes for immature cortical cataract, and 41 eyes for mature cataract were investigated. The anterior surfaces of the lenses capsule for newborn babies, normal adults and senile cataract were observed with scanning electron microscopj ( SEM). The results were as follows: the development of anterior capsular iridescence was positively correlated to age; the degrees of iridescence were significantly different among the groups of different ages; in senile cataract group, various forms of protuberances of the lenses were seen on the anterior surface of the lenses, which could be due to hydropic degeneration of anterior subcaosular epithelial cells. It is suggested that a preclinical stage for senile cataract be adopted.