Lutein

Slowing early macular degeneration is what it's done, in eyes that already had it.

Also called Xanthophyll, E161b, β,ε-Carotene-3,3′-diol

The item

Three squares: proven in human trials. Two: a strong signal. One: early human data. Striped: the trials disagree.

Emergency: call 911.

I am not a doctor. This is not medical advice. This is self-education. Talk to a physician who has your history before you change anything.