The inner lining on the back of your eye contains cells often called rods and cones that transmit information that your brain interprets as a visual image. If the rods and cones break down over time, this may result in macular degeneration, an eye disease that typically causes permanent vision loss. In most cases, treatment will not restore lost vision, making prevention a key factor in retaining clear vision. However, dietary supplements may aid in prevention.
AREDS
Based on a study conducted in 2001 called the Age-Related Eye Disease Study, the National Eye Institute recommends taking high doses of certain nutrients. This study, which many refer to as AREDS, concluded that the studied nutrients and dosages may reduce your risk of advanced macular degeneration damage by around 25 percent. The ARED Study recommends 15 mg of beta-carotene, the equivalent of 25,000 International Units of vitamin A. Other nutrients include a 500 mg dose of vitamin C and 400 International Units of vitamin E, as well as 80 mg of zinc. AREDS researchers also recommend 2 mg of copper each day to reduce the risk of copper deficiency that may occur when taking high doses of zinc.
Lutein
Many bright or dark colored foods contain the antioxidant pigment called lutein. Dr. Johanna M. Seddon conducted a study through Harvard University which determined that at least 6 mg of lutein each day could significantly reduce your risk for macular degeneration. Leafy, green vegetables such as kale and spinach contain lutein, but you may choose to take supplements to ensure that you have the proper daily intake.
Omega-3
Omega-3 is an essential fatty acid that could help prevent macular degeneration. Fatty fish such as salmon and tuna contain omega-3, but your doctor may recommend a daily supplement to ensure you have an adequate intake. Fish oil capsules and flaxseed oil capsules provide omega-3. Your doctor will consider your general health and the medications you take, and she can then determine the dose of omega-3 appropriate for you.
Formulations
Some supplement manufacturers provide formulations based on the ARED Study, as well as the possible benefits of lutein and omega-3. These supplements may state "AREDS" or "eye vitamins" on the packaging, but you should consult with your doctor or a pharmacist to help you determine which supplement contains the nutrients and dosages that you require.
Considerations
Prior to starting any new supplement you should discuss your decision with your doctor. Certain nutrients may interfere with diseases or conditions, or these nutrients may interfere with the medications you take. To protect your health, as well as your eyes, your doctor may determine that you require a higher or lower dose of some nutrients.
