Slide show: Age-related vision problems
Normal vision and constricted peripheral vision with advanced glaucoma
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The most common type of glaucoma — open-angle glaucoma — causes progressive loss of peripheral vision followed by loss of central vision. Angle-closure glaucoma, which is less common but considered a medical emergency, causes severe eye pain and redness.

To detect glaucoma early, see your eye doctor for regular eye exams. Seek immediate medical attention if you have severe eye pain or other signs and symptoms of glaucoma. Treatment options might include medication, laser therapy or surgery.

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