My son's daycare class has a kid in it who's missing an eye. He has an eyelid/lashes/etc, just was born without the tissue used to see with. He's a completely normal looking kid, it just looks like one eye is always closed and instead of the roundness of an eyeball behind is flat since it's missing. There's nothing scary, or weird, or gross about him.
I once watched a mother scream and throw a tantrum at pick up time because the teachers insisted he wouldn't be moved from the class as there's nothing wrong with him being there. She swore up and down that this kid was scaring her child and the daycare teachers should do more to 'protect her baby from people like that' and her child shouldn't have to be around 'freaks' and he should have to go with the special education kids.
Her kid seemed fine with this other kid, but his mother was horrified by him interacting with someone who wasn't her idea of normal and she lost it when the teachers refused to give into her weird demands about it. I can only imagine what fucked up prejudices this kid is going to have thanks that vile woman.