What cataract

summary

The symptoms of cataract often vary according to the type of cataract and the course of the disease. Cataract often occurs in both eyes, but it may occur in different degrees. The main symptoms were anterior shadow and progressive and painless visual loss. There are various clinical manifestations in different turbid parts. What cataract? Let's talk about it.

What cataract

First: cortical cataract, early does not affect vision; after the development of good vision 0.6, to read books and newspapers in strong light. Some people read clearly in the dark, and the center is cloudy. Some of them develop slowly (fissures) and rapidly (turbid fissures).

Second: nuclear cataract such as high myopia, in the process of vision loss may appear refractive power enhancement, both the original myopia increase or the original presbyopia reduce, some people who usually need to wear presbyopia even remove glasses can see newspapers and books, second vision.

Third: see things overlap. The contrast sensitivity decreased under strong light, and glare was produced under night light. French Monet is a famous impressionist painter. It is said that his fame is related to cataract. The bridge on the water lily in the pond, which was not well-known in the early period, is exquisite in style and vivid in color. Later, after suffering from eye disease and cataract, he boldly used bright colors to become a master of Impressionism because of the decrease of contrast sensitivity.

matters needing attention

Also can appear monocular diplopia or multi vision, iridescence, photophobia and glare and other symptoms. Generally speaking, the development of symptoms is slow, but if patients are accompanied with systemic diseases such as diabetes or local eye diseases such as high myopia, glaucoma, retinitis pigmentosa, uveitis, etc., the occurrence of cataract will be earlier and progress faster.