There are several different types of glaucoma, including primary open-angle glaucoma, angle-closure glaucoma, and normal-tension glaucoma. Each type of glaucoma has different signs and symptoms, and it is important to understand the differences in order to properly diagnose and treat the condition.
Primary open-angle glaucoma (POAG) is the most common type and is usually asymptomatic. This type of glaucoma is usually caused by increased pressure inside the eye and is often diagnosed during a routine eye exam.
Angle-closure glaucoma (ACG) is less common but is much more serious. This type of glaucoma is caused by a blockage in the eye’s drainage angle and can cause sudden, severe pain, blurred vision, and halos around lights.
Normal-tension glaucoma (NTG) is a type of glaucoma that occurs even when the pressure inside the eye is in a normal range. This type of glaucoma is often difficult to diagnose, as the symptoms are often subtle.