 They also have a few tips to protecting your vision, like knowing your family's history. Eat right to protect your sight. Maintain a healthy weight. Quit smoking or don't start in the first place. Wear sunglasses that protect 99% of ultraviolet radiation and wash your hands before taking out contacts. For more health news, go to foxnewshealth.com. House Call for Health, I'm Anna Eliopoulos, Fox News.