What is a cataract?
Cataracts are the leading blinding eye disease in our country. A cataract is a condition in which the lens of the eye turns from transparent to opaque, blocking light from entering the eye and thus affecting vision. The initial clouding has little effect on vision, and then gradually worsens until it significantly affects vision or even blindness.
What are the clinical manifestations of cataract?
The main symptom is progressive vision loss without pain or perception. It starts with blurred vision and progresses to blindness. In addition, myopia may deepen, requiring frequent replacement of glasses; double vision in one eye, fixed black shadows in front of the eyes, gray and dark vision, and photophobia. The onset of the disease often occurs in both eyes, and the time and degree of onset may vary.