Glaucoma is a type of disease that damages the optic nerve, and if left untreated, the possibility of blindness is great. Glaucoma damage to the eye is divided into the following two main conditions.
First, acute closed-angle glaucoma, with a sharp increase in intraocular pressure as a typical symptom. The disease is most common in middle-aged and elderly people. Sudden onset of eye pain, eye swelling, headache, nausea and vomiting are common. This type of glaucoma can cause serious eye damage in a short period of time and can easily lead to blindness if not treated in time.
Second, chronic closed-angle glaucoma. This type of glaucoma is a progressive disease, some patients have no symptoms in the early stage of the disease, with the progressive aggravation of the disease, the visual field gradually narrowed. Most patients in this category can retain some degree of vision with timely intervention.