People who eat foods containing carotenoids get protective health benefits as well. Two carotenoids, lutein and zeaxanthin, found in high levels in collard greens and spinach, appear to reduce risk of macular degeneration according to researchers at Harvard Medical School.
Vitamins A & E also could improve vision in macular degeneration. Because the retina is the most metabolically active tissue in the body, it requires a high level of antioxidant defense.
Cysteine is important for retinal health maintenance. Glutathione is one of the most important antioxidants in the eye.
Taurine plays an important role in rejuvenation and regeneration of retinal cells. It is found in high concentrations in the retina, especially in the photo-receptor cells. A supplemental dose of 100 mg/day of Taurine has been recommended.