It is best to use vitamin brands that adhere to formulations designed from the internationally recognized Age-Related Eye Disease Study (AREDS and AREDS2), sponsored by the National Eye Institute. It is best to stay with brands that have known quality controls and safe ingredient resources.
AREDS formulas include an appropriate balance of lutein and zeaxanthin, vitamin C and vitamin E, and copper and zinc. Most nutrients work best in combination with other nutrients, so taking single nutrients is not as well studied. It is understood that the specific vitamins and nutrients may play a key role in reducing inflammation and oxidative changes associated with the development of degenerative diseases, including chronic and age-related eye problems.
Ocular vitamins have higher doses of certain vitamins than in general multivitamin formulations. Please make sure you consult your optometrist, family doctor, or pharmacist if you also need other vitamins to ensure you do not take too much of one thing.