The world’s leading cause of blindness has always been cataracts. Naturally, treatment has come a long way.
In the US alone, over 20 million adults over the age of 40 will develop cataracts. By age 80, half of all US adults will have them. In a healthy eye, the lens is filled with transparent proteins. When those proteins clump together and turn opaque, they cause symptoms like light sensitivity, dim or clouded vision, glare, halo effects around lights, double vision in a single eye, faded colors, impaired night vision, and frequent changes to glasses prescriptions.
