Posterior polymorphous corneal dystrophy?

summary

Posterior polymorphous corneal dystrophy is a kind of congenital hereditary corneal endothelial disease, which is characterized by polymorphous changes of corneal endothelial cells. There are three types: vesicular, broad band and diffuse. It represents a series of diseases with clinical and histopathological differences, one of which is similar to bilateral iris corneal endothelial syndrome (ice). Posterior polymorphous corneal dystrophy? Let's talk about it

Posterior polymorphous corneal dystrophy?

PPCD is a familial disease, mostly autosomal dominant inheritance, also can be seen in autosomal recessive inheritance, usually double eye disease, also asymmetric or unilateral disease. Sometimes one cornea showed late polymorphous changes, while the other cornea only had aggregated vesicles in one area. The age of onset is not easy to determine, early no symptoms, usually does not affect vision, because it rarely produces matrix turbidity or epithelial edema.

Posterior polymorphous corneal dystrophy, although described as stable, can proceed slowly. For example, in older patients with normal vision, the number of aggregated vesicles may increase, showing pleomorphism and thickening of the posterior elastic layer. Some patients with stromal edema gradually affect vision, and develop into epithelial edema, causing secondary zonal keratopathy, and need corneal transplantation.

It is mainly keratopathy. Iris and iridocorneal angle may also be involved. Slit lamp examination showed that the morphological changes of PPD included small aggregation vesicles or large map like blister like changes in the endothelium, gray opacity or plaque opacity of different sizes in the posterior elastic layer without corneal punctate degeneration. These changes are located in the deep corneal posterior elastic layer.

matters needing attention

Eat more high quality protein. High quality protein mainly refers to all kinds of animal food, such as chicken, duck, fish, lean meat and eggs. The diet should be light, and less spicy, fried, fried, liquor and other indigestible and irritating food; Eat more fruits, vegetables and other foods rich in vitamins and fiber, drink more water, regular diet, do not overeat, eat on time, there is a certain help.