Astaxanthin, a dietary carotenoid, protects retinal cells

Attached is an interesting study regarding "Astaxanthin" in the neuro protection of retinal cells (which could have implications for glaucoma). This was forwarded to me by a fiteyes member. A little research shows that there are some micro algae based supplements for obtaining this - In light of modern toxins, I am a little hesitant with consuming the amount of seafood that is probably necessary for getting this naturally in the diet.