I'm 20, and I used generic Retin-A 0.05% cream on my eye area/eyelids nightly for a few weeks, and used SPF 15 when I went out. For about a week I would stay in the house all day and wait a few hours before washing the leftover Retin-A off my eyes (I wanted to maximize its effects). I was exposed to soft (not direct beams) of sunlight from windows/windows with closed blinds in the house. I never got sunburned at the time. I am now off the Retin-A. Did I permanently damage my eyelid skin?