You need to check the list for what qualifies. I don't know if the rules are set by the government or if they vary by plan, but for my plan I can't claim most OTC medical supplies or drugs without an Rx from the doctor or a special medical need. For example sunscreen qualifies if you've had skin cancer but otherwise it doesn't. And I can't claim the OTC antihistamines the doctor recommends for me unless he writes me a prescription.

However I can claim non-prescription reading glasses. I have submitted claims for 6-8 pairs in the past couple of years. I have a pair here in the living room, one at work, one in my purse, a folding pair in my bike bag, another folding pair in the duffle bag where I keep my bike gear, etc. So if you need reading glasses, now's the time to stock up.

If that won't work, maybe another pair of eyeglasses, for a spare, or maybe prescription sunglasses.

I've been nearsighted for years and only recently started needed reading glasses, so I still wear contact lenses or eyeglasses for distance. Last year I used up my FSA with a pair of prescription titanium Ray-Bans. They are incredibly light, very nice frames.