What symptom does cataract have?

summary

Cataract is an eye disease in the middle and old age, and the incidence rate of eye diseases is very high. In a recent survey, it shows that about 25% of human beings have cataract tendency, and over 80% are elderly friends. Senile cataract is now becoming a very important threat to our health, so we must pay attention to prevention. The symptoms of some cataracts are often different according to the different types of cataracts and the different course of disease. Cataracts are often caused by both eyes, but after the onset of cataracts, there can be first and then, because the severity of cataracts is different, her symptoms are also diverse. So let's introduce to you the symptoms of various cataracts?

What symptom does cataract have?

In the strong light, the contrast sensitivity will be reduced, and glare will be produced under the night light. There are also some, cataract patients will appear monocular diplopia or eventful, red, photophobia and glare and other symptoms, generally speaking, the process of these symptoms is relatively slow, but if patients will be accompanied by systemic diseases, such as diabetes, I am Yanju Bubi, such as high myopia, glaucoma surgery, cataract will occur earlier, progress faster.

The symptoms of nuclear cataract, such as high myopia, in the process of vision loss, there will be increased refractive power, that is, the original myopia increased or the original presbyopia reduced. Some people who usually need to wear presbyopia glasses, even after removing the glasses, can see the newspapers and books.

Cortical cataracts will not affect vision in the early stage. After the development, the vision is 0.6. We should read books and newspapers under strong light. Some people are dark, and reading under light is relatively light. There will be turbidity in the center. Some people feel that the development is relatively slow, and some develop relatively fast. This is a symptom of a cortical cataract.

matters needing attention

Some elderly people wear presbyopic glasses very early, and sometimes they will see things more clearly when they don't wear presbyopic glasses. This is an early signal of cataract. The early signs of cataracts also include lens opacity, the tool will be under when looking at objects, the color will be under when looking at objects, the dark adaptation ability is poor, and the time needed to see objects will be prolonged, etc.