Cataracts are common, age-related clouding of the clear lens that covers the eye. Though they are not dangerous or threatening to the health of the eye, cataracts can be an inconvenience when performing seemingly routine tasks, such as reading, driving, cooking, or watching TV. Cataracts often start small and evolve into larger vision obstructions. Some of the most common symptoms of cataracts include clouded and blurred vision, as well as impaired night vision, light sensitivity, or seeing halos around lights. Treatment for cataracts usually begins conservatively using eyeglasses or simply turning on brighter lights. But as cataracts progress, they may require vision restoration surgery.