Visual mode
Symptom name, blurred vision, that is, foggy vision, blurred vision, is an early symptom of angle-closure glaucoma, and angle-closure glaucoma is a common type of glaucoma in China. It can also be caused by eye fatigue, or nearsightedness and farsightedness. The elderly may also be caused by eye diseases such as cataracts. So suddenly the vision can not be ignored.
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