But while it's great to look and see better, you want your eyes to feel better, too, whether it's by preventing itchy, watery allergy symptoms or staving off age-related eye diseases. So we went on a vision quest to round up the tests, treatments and warning signs you need to know about so you'll see clearly into your next decade and beyond.
Problem No. 1: Presbyopia
The lowdown. Presbyopiadifficulty making out close objects, like writing on a menu or digits on a phoneusually sets in by the time you're 40. That's because, as you age, the lens of your eye gradually starts to lose flexibility. (Farsightedness, or hyperopia, has a similar effect but is due to the shape of your eye and is usually something you're born with.) Unfortunately, there's nothing you can do to prevent it.
What it feels like. Your vision is blurred at a normal distance. You may also notice eye strain and headaches when you're doing close-up work, like sewing.
Rx. Although presbyopia is a natural condition, you should still see your eye doctor when you notice it to make sure you don't have a more serious condition, like glaucoma, says Bruce Rosenthal, MD, professor of ophthalmology at the Mount Sinai School of Medicine. If it is presbyopia, he'll likely recommend reading glasses. Already wear glasses or contacts? Relax: You won't have to switch to old-fashioned granny glasses, thanks to new bifocal contact lenses and glasses known as no-line bifocals, which use progressive, multifocus lenses and look like regular specs.
Problem No. 2: Allergic conjunctivitis
The lowdown. If you have seasonal allergies, you recognize this as the annoying redness and itchiness that afflict your eyes in response to pollen from grass, trees or ragweed. You might also get these symptoms if you're allergic to pet dander or mold. "When the allergen comes into contact with your eyes, it causes cells known as mast cells to release histamine and other substances," causing swelling and wateriness, explains Richard Weber, MD, president of the American College of Allergy, Asthma and Immunology.
What it feels like. Itchy, red, watery eyes. You might also have other allergy symptoms, like sneezing.
Rx. An eye doctor or an allergist can prescribe prescription antihistamine eyedrops and, if needed, oral antihistamines (available either over-the-counter or by prescription). "Just avoid over-the-counter redness dropsthey work by constricting blood vessels in your eye, and you can develop a rebound effectwhen you stop using them, the vessels dilate again," Dr. Weber says.