system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: When there's an eyelash in your eye and you can't get it out and it eventually rolls to the back, where does it go?
gpt
An eyelash cannot go all the way behind the eye "ball" because connective tissue, like the inside on the eyelid, muscles, etc. attach to the eye.

An eyelash or anything else that doesn't belong generally slides up or down, away from the visual field, and toward the nose. Sometimes foreign debris can work itself out with help from tears that help rinse it away.