I did some climbing this last weekend, and with the absence of sunglasses, my eyes became really sunburnt, to the point of mild snow blindness. The whole beginning of the week I could barely function due to the pain in my eyes. It was as if someone poured a bucket of sand all over them. Despite the painful aftereffects, the actual climbing itself was amazing. Here are a few pictures, and a link to my friend Scot's trip report.
Scot's Trip Report