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A study in Environmental Health Perspectives suggests long-term lead exposure may be a risk factor for primary open-angle glaucoma (POAG), the most common type of this disease.

Cataract prevention begins with nutrition. A diet high in antioxidants, omega-3 fatty acids and colorful fruits and vegetables can preserve healthy vision.

Cataract surgery used to require hospitalization and extended recovery time, but today, it is mainly performed at outpatient surgery centers under local anesthesia.