After the army I used to work at a woodshop in a big factory. We were making huge wooden boxes by sawing planks and pinning them together to make boxes. Needless to say it was a very noisy and harmful job, and we all used to wear earplugs and protective glasses. However, avoiding all that sawdust in the air wasn't easy, and once I got some stuck in my eye and couldn't work anymore. I went to the factory medic, and he gave me those eye-drops, and I suppose it helped but for a couple of hours I was completely vampirized.
Every time I was exposed to direct sunlight my eyes hurt like hell. I was suffering as I ran through sunlight, hiding in the shadows. The pain, man, the pain! I never used eyedrops before, and that was when I totally felt like a vampire.