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后囊下自内障(Posterior Subcap-sular Cataract,简称PSC)在临床上多见于并发性白内障。并发性白内障不论何种原因所致,临床上初期症状常常是晶体后囊下皮质混浊,即所谓PSC。在人类和动物实验性放射性眼损伤中,本白内障已被人们所重视。但以往的组织学研究,主要是论述大剂量电离辐射照射后所致晶体透明度的形态变化。本文主要对晶体膜结构、PSC发生机理、PSC鉴别(着重放射性白内障——特别是长期低剂量X射线照射引起人眼晶体放射性损伤与老年性白内障)等简介如下。
Posterior subcapsular cataract (Posterior Subcap-sular Cataract, PSC for short) is more common in clinical cataract. Concurrent cataract, regardless of what causes, the initial symptoms of clinical clot subcapsular opacity, the so-called PSC. In human and animal experimental radiation eye injury, the cataract has been valued. However, previous histological studies mainly focused on the morphological changes of crystal transparency caused by high dose ionizing radiation. This article focuses on the crystal structure of the membrane, PSC mechanism, PSC identification (focusing on radiation cataracts - especially long-term low-dose X-ray radiation caused by human eye crystal radiation and age-related cataract) are as follows.