It might have something to do with a lack of vitamins/minerals, as for most things. Plus, as you get older, your absorption of vitamins/minerals is weaker, too,

It might have something to do with a lack of vitamins/minerals, as for most things. Plus, as you get older, your absorption of vitamins/minerals is weaker, too, so you'd need more, even if you consumed the right amount of everything every day (most likely you did not, because it's impossible to get everything your body needs just from food ever day). https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3693724/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3693724/ http://www.lifeextension.com/Protocols/Eye-Ear/Eye-Health/Page-01 http://www.lifeextension.com/Protocols/Eye-Ear/Eye-Health/Pa...