The main symptoms of acute glaucoma include loss of vision, eye swelling and pain, and ipsilateral headache. Glaucoma is the second most common eye disease causing blindness in ophthalmology and one of the common emergencies in ophthalmology. The main triggers of acute photophthalmos are mood swings or exertion. 1. Loss of vision: acute glaucoma attack has its characteristic clinical symptoms, first of all, there will be a sudden loss of vision, blurred vision, look at the light will appear colorful colors, and so on. 2. Swelling of the eyeballs: In addition to vision loss, acute glaucoma will also have obvious symptoms of eyeball swelling and pain, which is related to the increase of intraocular pressure. 3. Headache, nausea, vomiting: Acute glaucoma may cause headache, nausea and vomiting in severe cases. When the above symptoms occur, you should be highly alert to the acute attack of glaucoma and go to the ophthalmology department of regular hospitals for further diagnosis and targeted treatment in order to avoid delaying the condition.