Symptoms of Glaucoma
||Most people who have glaucoma don't notice any symptoms until they
begin to lose some vision.
As optic nerve fibers are damaged by glaucoma, small blind
spots may begin to develop, usually in the side -- or peripheral -- vision. The top photo
at left shows how a scene would be viewed by a person with normal vision. The bottom image
shows the same scene as viewed by a person with glaucoma. Many people don't notice the
blind spots until significant optic nerve damage has already occurred. If the entire nerve
is destroyed, blindness results.
One type of glaucoma, acute angle-closure glaucoma, does produce noticeable symptoms.
In angle-closure glaucoma, there is a rapid buildup of pressure in the eye (intraocular
pressure, known as IOP), which may cause any of the following:
- blurred vision
- severe eye pain
- haloes (which may appear as rainbows) around lights
- nausea and vomiting
Angle-closure glaucoma is a rare, but serious, form of the disease. If you have any of
these symptoms, call your ophthalmologist immediately. Unless treated quickly, blindness