Majority cases of glaucoma do not have any discrete symptoms until the optic nerve is damage, and side (peripheral) vision is lost.
For this reason, experts suggest regular eye exams to diagnose and treat it at its early stage.
Open angle Glaucoma symptoms
Open angle glaucoma is the most common form, initially has no symptoms. The eye pressure builds up gradually and at some point; the optic nerve is damage and side vision (peripheral vision) is lost. Without proper treatment, total blindness will occur. Similarly, people with normal tension glaucoma will not experience any symptoms until they begin to lose peripheral vision.
Closed angle Glaucoma symptoms
Acute closed angle glaucoma is the result of a sudden blockage in the normal flow of eye fluid (aqueous humor) between the iris and the lens. Symptoms of this condition may include severe pain, nausea, vomiting, blurred vision, and seeing a rainbow halo around lights. It is a medical emergency and must treat immediately otherwise blindness may occur in one or two days. Chronic closed angle glaucoma progresses more slowly and can damage the optic nerve without any symptoms.
Don’t wait for glaucoma symptoms
Therefore, it is advisable not to wait for any symptoms of glaucoma and have regular eye tested to avoid vision loss. For those who have a high risk factor for glaucoma has to have frequent eye examination as suggested by their eye doctor.