Cataracts are the clouding of the lens of your eye. This is very common as you get older. Cataracts aren’t life threatening from the fact of just having blurry vision. Blurry vision doesn’t affect anything except for your eye vision. If this is left untreated you will have total blindness. The only treatment for cataract is surgery. Other symptoms are increasing difficulty with vision at night, Sensitivity to light and glare and seeing “halos” around light.