Excessive Exposure to Sunlight
Sunlight is a source of vitamin D, and it is important to have a little sunlight every day to maintain levels of vitamin D, but you must also protect the eyes against overexposure to the harmful UV rays that the sun emits. Throughout the world, cataracts are very common in areas where the amount of annual and daily sunlight is high, ambient temperatures are warm, and the latitude is low. These areas receive more solar radiation, which includes ultraviolet and infrared radiation and visible light. Chronic sunlight exposure can increase the risk of cataracts, a clouding of the eye lens.
If your eyes are regularly over-exposed to the sun’s UV rays this can certainly damage them, possibly causing vision problems, blindness, and cataracts. The longer your eyes are exposed to the UV rays the higher the risk of cataracts forming.