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"An ounce of prevention is worth a pound of cure." This famous quote attributed to American statesman Benjamin Franklin certainly appears to be true when it comes to nutrition and vision.
Age-related eye diseases such as macular degeneration and cataracts commonly cause impaired vision and blindness in older adults. But a healthy lifestyle, including good nutrition, may help prevent or delay the onset of these problems later in life.
Besides adopting a healthy diet, you also can protect your eyes by exercising regularly, reducing your exposure to the sun's harmful ultraviolet (UV) rays, avoiding or quitting smoking. Regular health checkups also are important to rule out or treat chronic diseases such as diabetes that can cause eye problems.
Regular eye exams, too, are essential for maintaining good vision throughout your lifetime. If eye problems and chronic diseases are detected early enough, appropriate treatment may prevent permanent vision loss.
Diet is an extremely important lifestyle choice. The types and amount of food you eat affect your overall health as well as the health of your eyes.
A diet high in saturated fat and sugar increases your risk of eye disease. On the other hand, healthful foods such as colorful fruits and vegetables may help prevent certain eye diseases and other health problems.
Cardiovascular disease, diabetes and eye problems such as cataract and age-related macular degeneration (AMD) occur less frequently in people whose diets are rich in vitamins, minerals, healthful proteins, omega-3 fatty acids and lutein.
A healthy diet should include ample amounts of fresh, colorful fruits and vegetables. In fact, experts recommend that you consume at least five to nine servings of these foods daily.
Dark green vegetables and brightly colored fruits and vegetables are especially helpful because they contain high amounts of antioxidants. Dietary antioxidants protect your eyes from damage caused by free radicals (oxidizing agents in the body) that is associated with age-related eye diseases.
Lutein, a pigmented substance found in dark green leafy vegetables such as spinach and kale, is one of the best known antioxidants for maintaining healthy eyes. Sweet corn, peas, and broccoli also contain lutein.
Vitamin A, also vital for healthy vision, is found in orange and yellow vegetables such as carrots and squash. Fruits and vegetables also provide essential vitamin C, another powerful antioxidant that may play an important role in eye health.
To help protect your eyes for a lifetime of good vision, follow these dietary guidelines:
An important large study called the Age-Related Eye Disease Study (AREDS) evaluated the effect of a dietary supplement combination of vitamin C, beta carotene (the precursor of vitamin A), vitamin E and zinc on the progression of macular degeneration. Results showed that people at risk for the disease were less likely to develop advanced AMD when they took this formulation of supplements.
Another major study called the Blue Mountains Eye Study found that daily multivitamins and B vitamin supplements, especially folic acid and vitamin B12, reduced the risk of cataracts in study participants. Results also showed that taking omega-3 fatty acids daily reduced the risk of cataracts.
The amounts of nutrients evaluated in these studies sometimes can be difficult to obtain by diet alone. Consult with your eye doctor to determine if you are getting the daily nutrients you need for optimum eye health.
Some eye doctors who are especially knowledgeable about nutrition and vision may even offer eye vitamins and vision supplements for purchase in their practice.
Don't wait until you have a vision problem to start taking better care of your body and your eyes. Start a healthful lifestyle today, including a good diet, nutritional supplements and regular eye exams, and help yourself enjoy a lifetime of good vision.
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