The exact cause of glaucoma is unknown, though some experts believe that inner pressure in the eye is the cause. Some people with normal intraocular pressure, though, develop glaucoma. There are several different precurs... More » Health Vision

Narrow-angle glaucoma, also called angle-closure glaucoma and closed-angle glaucoma, is caused by the forward movement of the iris. This movement obstructs the eye's drainage channel and causes pressure to build up in it... More » Health Vision

Open-angle glaucoma has few signs in its early stages; however, patients gradually lose peripheral vision, according to the Glaucoma Research Foundation. Angle-closure glaucoma sets in quickly, and patients experience ha... More » Health Vision
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Most cases of glaucoma do not present signs or symptoms until severe damage is already done, so individuals should receive regular eye examinations for early detection, according to Mayo Clinic. Adults should begin recei... More » Health Vision

Both high blood pressure (hypertension) as well as high pressure in the eye (ocular hypertension) can cause damage to the optic nerve, which may lead to glaucoma. Hypertension can also worsen ocular hypertension and indi... More » Health Vision

Damage caused to the eyes by glaucoma is irreversible, so early detection through regular eye examinations is essential. Proper treatment can prevent further loss of vision. More » Health Vision

Prostaglandin analogs, which are found in eye medications used for glaucoma, can change a patient's eye color. This can be a side effect of using prescribed eye drops with this active ingredient, states the Glaucoma Rese... More » Health Vision