Glaucoma is a disease of the eye that can result in total loss of vision, but a few signs and symptoms of this disease can prompt patients to visit their eye doctor early. Early detection can save the person's vision. Once vision loss has occurred, there is no way to restore it.
There are two forms of this illness: angle-closure glaucoma and open-angle glaucoma. Each has its own unique symptoms.
Angle-Closure
This form is caused by a blockage of the eye's drainage canals. It increases the pressure in the eye and can come on suddenly, and medical attention should be sought immediately. Warning signs include hazy or blurred vision, sudden sight loss, severe eye or head pain and accompanying nausea or vomiting, or the appearance of rainbow-colored circles around bright lights.
Open-Angle
This form generally takes place slowly over time, occurring as the drainage channels in the angle where the iris and cornea meet gradually become blocked. Typically, the symptoms of this form of glaucoma are not as recognizable. They include granular loss of peripheral vision and tunnel vision.
By visiting an eye doctor for a routine exam, glaucoma can be caught early, and preventative measures can be taken to avoid vision loss.
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