DudeAsk your parents to check your eyes for parasitesYes, i know this sounds wierd, but just do it. I remember reading a story about a kid with a similar situation to yours in which he nearly lost his eyesight in the end due to a fly larvae eating his retinal tissue.
Conjunctivitis
Oh, it turns out to be stye. Go look it up on wikipedia if you want. Basically a small dot of skin is on my eyelid and it feels like there is always something stuck in my eye. I've had it before, it's fixed with eyedrops.
Oh God, his facial expression at the beginning is too funny.