Insurance Coverage for Double Eyelid Surgery?

I wear contact lenses about two years ago. Then due to a heavy college workload I would wear them for extended periods of time (from about 7AM to 12AM). Suddenly I began to get horrible eye infections and when I went to see an eye doctor he told me that I had scarring on the edge of my cornea and recommended that I stop wearing contacts. However, I am near-sighted in one eye and far-sighted in the other and wearing glasses for longer than 2-3 hours causes horrible migraines. I've gone to the ER countless times due to the severity of my migraines. When I returned for a follow up, the eye doctor stated that the reason I was so infection-prone was because my eyelids were very tight in the inner corners, causing my eyelashes to rub against my eyes, and when combined with the contacts, led to infection. My eye doctor then recommended that when I turned 20 (which I am now), I should ask him to re-examine my eyes and he would refer me to a plastic surgeon for a double eyelid surgery. He stated that due to the nature of my condition, it was likely that my insurance would cover the costs. Do insurance companies commonly do this? I know I have excellent coverage so would this make a difference.