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b'Glaucoma is a leading cause of blindness worldwide and called "the sneak thief of sight" because people might not know they have it and start treatment too late. A painless, comprehensive eye exam can detect the disease, which typically involves a buildup of pressure in the eyeball that damages the optic nerve, explains Glaucoma is a leading cause of blindness worldwide and called "the sneak thief of sight" because people might not know they have it and start treatment too late. A painless, comprehensive eye exam can detect the disease, which typically involves a buildup of pressure in the eyeball that damages the optic nerve, explains Robert Fechtner, MD Robert Fechtner, MD, chair of the Upstate ophthalmology department and executive vice president of the, chair of the Upstate ophthalmology department and executive vice president of the World Glaucoma Association World Glaucoma Association. He advises when younger and older adults should get an eye exam, how the disease is more common in some families and ethnic groups and describes treatments, which range from surgery to daily eye drops. He also speaks about cataracts and Upstate\'s role in treating and researching diseases of the eye.. He advises when younger and older adults should get an eye exam, how the disease is more common in some families and ethnic groups and describes treatments, which range from surgery to daily eye drops. He also speaks about cataracts and Upstate\'s role in treating and researching diseases of the eye.'