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A group of eye conditions that can cause blindness.

Glaucoma is a group of eye conditions that can cause blindness. The nerve connecting the eye to the brain is damaged, usually due to high eye pressure.

Each type of glaucoma has different symptoms. They include slow vision loss, eye pain with nausea and sudden visual issues, such as blurry vision and seeing halos around lights.

Treatments include eye drops, medicines and surgery.