Kurysheva N I, Fedorov A A, Erichev V P
Vestn Oftalmol. 2000 Jan-Feb;116(2):13-6.
Lenses from patients with glaucoma and senile cataract (control) were examined under electron microscope. Ultrastructural changes in the lenses of glaucoma patients differ from changes in senile cataract by a more pronounced thinning of the capsule and development of microdefects in it and in many cases by accumulation of amorphous material on the surface of the posterior capsule adjacent to the vitreous body. This material may be pseudo-exfoliate or a manifestation of stratification of the posterior capsule proper. Development of a pseudomembrane on the surface of posterior capsule is a manifestation of proliferative processes in glaucoma. These features in a certain measure reflect the mechanism of cataract development in glaucoma, which helps plan the measures for preventing it. The status of posterior lenticular capsule in glaucoma is to be taken into consideration when implanting intraocular lenses.
对青光眼患者和老年性白内障患者(对照组)的晶状体进行了电子显微镜检查。青光眼患者晶状体的超微结构变化与老年性白内障不同,表现为晶状体囊膜更明显变薄以及囊膜及其内部出现微缺陷,在许多情况下还表现为与玻璃体相邻的后囊膜表面有无定形物质积聚。这种物质可能是假性剥脱物或后囊膜本身分层的表现。后囊膜表面假性膜的形成是青光眼增殖过程的一种表现。这些特征在一定程度上反映了青光眼白内障形成的机制,有助于规划预防措施。植入人工晶状体时应考虑青光眼患者晶状体后囊膜的状况。