As in the controversy over zinc, there is no agreement that these antioxidants actually help macular degeneration. The first step to overall good health is a balanced diet. Vitamins and minerals are commonly given as supplements to the diet in amounts determined by recommended daily allowances. These supplementary dosages cause no apparent harm and are commonly avaiiable. But large doses of vitamins, called therapeutic doses, in amounts many times the daily recommended allowances, may not be completely safe.
Research is still in progress about nutrition and macular degeneration.
It is best to consult with your ophthalmologist to decide whether it is advisable for you to begin such treatment.