What is secondary cataract?

summary

Generally speaking, the incidence of secondary cataract after extracapsular surgery is significantly higher than that after intracapsular extraction. This is because, in addition to the above mentioned complications, there is also simple opacity of the posterior capsule itself. According to statistics, the incidence of posterior capsular opacification is as high as 30% - 60% 3-6 months after extracapsular cataract extraction. What is secondary cataract? Let's talk about it

What is secondary cataract?

After successful extracapsular enucleation, only a small amount of anterior capsule remains in the peripheral part behind the iris. In the pupil area, there is posterior capsule of lens between iris and vitreous body, which is as fine as gauze, thin and transparent as a fly wing like membrane. The anterior vitreous membrane and vitreous structure behind it can be seen by slit lamp microscope. In this case, you can often maintain good vision. The lens capsule sometimes has plica, also often has the color reflection to appear.

Sometimes, the thickness and hardness of the residual lens capsule are not consistent. In some places, the capsule membrane is thin and transparent or slightly turbid. In some places, it is thick, white and solid. In the places where the capsule is thickened or solid, it is often due to the hyperplasia of the epithelium under the capsule. The epithelium proliferating under the capsule can even cover the posterior capsule completely and cover the anterior capsule by bypassing the edge of the avulsed anterior capsule. At the same time with epithelial hyperplasia, there is also proliferation of lens capsule.

After lens trauma or extracapsular cataract extraction, the cortex is absorbed and the lens capsule still exists. A few epithelial cells proliferated, round or oval, transparent, like balloons or soap bubbles; More clumps, such as grapes or frog eggs, appear in piles. The degree of vision loss is related to the number of bubbles.

matters needing attention

Avoid exposure to ultraviolet light from the sun. Get plenty of vitamins. Pay attention to the protection of eyes, prevent mechanical and radiation damage to eyes, and educate children not to play with sharp instruments and dangerous toys, so as to avoid the occurrence of traumatic cataract. The elderly need to use Liuwei Dihuang pills and Buzhong Yiqi Pills to adjust the overall balance of the body.