- Clinical Practice Guidelines: Care of the Patient with Age-Related Macular Degeneration
- Nutrition and AMD
Most people with macular degeneration have the dry form, for which there is no known treatment. The less common wet form may respond to laser procedures, if diagnosed and treated early.
Some common symptoms are: a gradual loss of ability to see objects clearly, distorted vision, a gradual loss of color vision, and a dark or empty area appearing in the center of vision. If you experience any of these, contact your doctor of optometry immediately for a comprehensive examination. Central vision that is lost to macular degeneration cannot be restored. However, low vision devices, such as telescopic and microscopic lenses, can be prescribed to maximize existing vision.
Researchers have linked eye-friendly nutrients such as lutein/zeaxanthin, vitamin C, vitamin E, and zinc to reducing the risk of certain eye diseases, including macular degeneration. For more information on the importance of good nutrition and eye health, please see the diet and nutrition section.
Symptoms of Age-Related Macular DegenerationSymptoms of AMD include:
- Gradual loss of ability to see objects clearly
- Objects appear distorted in shape. Straight lines look wavy or crooked.
- Loss of clear color vision
- A dark or empty area appears in the center of vision.
Diagnosis of Age-Related Macular DegenerationIn its early stages, signs of macular degeneration can go noticed. Yet, if you experience any signs/symptoms, contact your doctor of optometry immediately. In a comprehensive eye exam, your optometrist will perform a variety of tests to determine if you have macular degeneration, or any other eye health problems.
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Treatment of Age-Related Macular DegenerationWith “dry” macular degeneration, the tissue of the macula gradually becomes thin and stops functioning properly. There is no cure for dry AMD, and any loss in central vision cannot be restored. However, doctors now believe there is a link between nutrition and the progression of dry AMD. Dietary changes favoring low-fat content and dark green leafy vegetables can slow vision loss. Nutritional supplements also may be beneficial.
Less common, “wet” macular degeneration results when fluids leak from newly formed blood vessels under the macula and blur central vision. Vision loss can be rapid and severe. If detected early, “wet” AMD can be treated with laser treatment, which is often called photocoagulation. A highly focused beam of light seals the leaking blood vessels that damage the macula. Photodynamic Therapy (PDT) uses a medication injected into the bloodstream, which is then activated with a laser shone into the eye. A new therapy available, where a medication is injected into the back of the eye, is showing favorable results. These are not permanent cures but are used to slow the rate of central vision loss.
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