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Glaucoma is a group of eye diseases which can result in permanent vision loss and blindness. Some forms of glaucoma don't have any symptoms, so you may have glaucoma even if you don't have any trouble seeing or feel any pain. If you find and get treatment for glaucoma early, you can protect your eyes from serious vision loss. Medicare will cover a glaucoma test once every 12 months if you're at high risk.
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