A glaucoma characterized by closure of the anterior chamber angle such that aqueous outflow is blocked and the intraocular pressure becomes inappropriately elevated leading to optic nerve damage and visual field loss. Angle-closure glaucoma has_symptom progressive peripheral vision loss, decreased vision, and pain, redness, and headache in acute cases. Angle closure glaucoma can be caused by anatomically narrow angle, injury to the trabecular meshwork, and injuries to the anterior chamber, such as neovascularization and uveitis.