I have a vision impairment called nystagmus. It makes my eyes shake constantly. They shake even when I close my eyes. Its not debilitating, just inconvenient mostly. I have poor depth perception and slow reaction time. Combined with my poor visual acuity, I can't really drive well and I have to get really close to a computer screen in order to read it comfortably. I don't really notice it unless I'm focusing on it, or if I'm really nervous or tired.
But to others, it looks really strange. I feel like people think I look ugly, creepy, weird, evil, etc, because of my eyes. It sucks that I also have social anxiety as well because it just makes me look even weirder.