To be most beneficial, eye nutrients must reach the eye via the bloodstream. This means taking supplements by mouth, sublinqually or intravenously, rather than topically as eyedrops. This is because compounds are unable to reach the retina in the back of the eye to support visual health and macular degeneration.
In order to have effect, these ingredients must be supplied in very high dosages – far greater than are listed as minimum daily values.
For visual health, the most important compounds, in order of importance are:
More information explaining the AREDS vs AREDS 2 research supporting these nutrients can be found at: