glaucoma is a major cause of blindness around the world, but especially in developing countries. the world health organization says glaucoma is a greater public health challenge than cataracts, because the blindness caused by glaucoma is permanent.
if you think you are not at risk for glaucoma, think again. glaucoma is a disease that steals the sight of people around the world -- and they typically don't even know they have the disease until it has permanently destroyed at least 40 percent of their vision.
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