A well-balanced diet also helps you stay at a healthy weight. That lowers your odds of obesity and related diseases like type 2 diabetes, which is the leading cause of blindness in adults.

The right pair of shades will help protect your eyes from the sun's ultraviolet (UV) rays. Too much UV exposure boosts your chances of cataracts and macular degeneration.

Make sure your glasses or contacts prescription is up to date and good for looking at a computer screen. If your eye strain won’t go away, talk to your doctor about computer glasses.

It makes you more likely to get cataracts, damage to your optic nerve, and macular degeneration, among many other medical problems. If you've tried to kick the habit before only to start again, keep at it. The more times you try to quit, the more likely you are to succeed. Ask your doctor for help.

Everyone needs a regular eye exam, even young children. It helps protect your sight and lets you see your best. Eye exams can also find diseases, like glaucoma, that have no symptoms. It's important to spot them early on, when they're easier to treat.

If you use hazardous or airborne materials on the job or at home, wear safety glasses or protective goggles. Sports like ice hockey, racquetball, and lacrosse can also lead to eye injury. Wear eye protection. Helmets with protective face masks or sports goggles with polycarbonate lenses will shield your eyes.