This is when you see halos or blur when exposed to bright lights. Many people with dense cataracts complain of glare while driving at night … the headlights from oncoming traffic make it hard to see. Glare is usually associated with cataracts and one of the indicators that it may be time for cataract surgery. Another cause of glare is corneal swelling from diseases like Fuchs’ dystrophy. Some people have sensitive eyes and seem to suffer from glare without any obvious anatomic abnormalities. Sunglasses during the day may help. At night, a glare-resistant coating on glasses may help.