Open-Angle Glaucoma
Open-Angle Glaucoma Causes
To date, the exact cause of open-angle glaucoma is not known. Glaucoma, in general, develops as a result of increased intraocular pressure or high pressure building up within the eye.
Open-Angle Glaucoma Definition
Open-angle glaucoma pertains to a relatively common, chronic, slowly progressing form of glaucoma that usually affects both eyes. Glaucoma pertains to a group of eye conditions characterized by damage to the nerve at the back of the eye, usually due to increased pressure within the eye, and ultimately resulting in vision loss. Open-angle glaucoma is the most common of all types of glaucoma, and tends to develop very slowly. The term ?open-angle? is used in reference to the relatively normal angle between the iris and the sclera; normal in contrast to other forms of glaucoma.
Open-Angle Glaucoma Diagnosis
Diagnostic tools used to determine open-angle glaucoma include: visual acuity test; visual field test; dilated pupil exam; tonometry; and air puff test.
Open-Angle Glaucoma Symptoms and Signs
In early stages, open-angle glaucoma does not present with symptoms. It tends to develop gradually, with no initial visual discomforts until late in the course of the disease. By the time open-angle glaucoma becomes symptomatic, significant optic never damage and vision loss may have already occurred, with permanent repercussions. Initial warning signs may include: gradual vision deterioration; peripheral vision deterioration; dim peripheral vision; degraded side vision; tunnel vision; blurry or foggy vision; difficulty adjusting to brightness; halos around bright lights; as well as mild eye pain.
Open-Angle Glaucoma Treatment
Treatment options for open-angle glaucoma include: eye drops; medications; beta blockers; miotic drugs; laser trabeculoplasty; conventional eye surgery; and trabulectomy.