Agreed, the stuff they used on me stung as well. Then the slit-lamp exam, which was REALLY not fun. Shitty beyond shitty to begin with, but shittier still after the application of the mydriatic eye drops. What was almost as nasty was I had to use the damnable stuff twice a day, every day, to avoid further damage to the cornea IIRC. I had to wear an eye-patch even at night, and couldn't see straight more than a few inches in front of my face. And having already light-sensitive eyes having the cornea scorched with boiling hot corrosive nastiness makes your eye/s sensitive to light like you wouldn't bloody believe. Massive dilation of the pupil AFTER that....there really aren't words that are vulgar enough in any language I know, or indeed all of them, to describe how much that hurts.