Glaucoma is a group of eye disorders that cause severe damage to the optic nerve that transfers information from the eye to the brain.It is one of the major cause for blindness.
In its early stages, glaucoma usually has no symptoms, which is what makes it so dangerous — by the time you notice problems with your sight, the disease has progressed to the point that irreversible vision loss has already occurred and additional loss may be difficult to stop so regular check-up is advised.
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