writing advice for characters with a missing eye: dear God does losing an eyes function fuck up your neck. Ever since mine crapped out I've been slowly and unconsciously shifting towards holding my head at an angle to put the good eye closer to the center. and human necks. are not meant to accommodate that sorta thing.

other things I'm bitching about but which could still be useful as writing advice for 1 eyed characters:

2. they're going to favor their sighted side, obviously, but it doesn't always manifest in the way you think. when I walk down a hall I walk much closer to the wall on my sighted side than on my blind side. which is the opposite of how it might seem logical to do that bc it means the world at large is on your bad side, but the reason is I can't fucking See the wall if it's right next to me in the blind side and I end up knocking into it.

3. door frames and poles are my enemy. If your character is smart this will not be a problem but for me it is. I am King of walking into shit I could absolutely see but couldn't tell how far away from me it was. on this note, their blind side hand is getting bashed into every jutting out thing in a 5 mile radius.

4. having 0 depth perception is less of a big deal than you'd think it is. Especially with driving. I've become a Much safer and more wary driver because I can't tell how far the other cars are from me. however I fucking suck at parking now. because I can't tell how far the lines are from me either.

5. you know how people who lose limbs get phantom pains? that happens with eyes too but like. phantom sights. for me it's like. a lot of bugs. like every so often my brain will just put something suddenly skittering beside me there. hate that.

6. it is completely possible to "get stuck" somewhere because your ability to tell how wide a space is is just Gone. shopping isles especially where bumping something or Someone is matter of embarrassment or potentially breaking something. it can be legitimately paralyzing and also irritate everyone around you because they can tell there is Plenty of space for you to get your cart through even if you can't.

7. if the eye is still in their skull it can still be the normal kind of painful. Glares off of shiny surfaces causing weird sharp pains you can't figure out the cause of are genuinely one of gods greatest tests of my patience.

I too am missing my eye and have advice. But first:

OP I've been missing my eye for 18 years and because of you I'm just now noticing that my neck does in fact list left. Now I will live with that knowledge forever.

1) depth perception issues are more severe if you lose the eye on the same side as your dominant hand. I lost my left eye and am right handed, and only have problems with close-up things. Like pouring water or threading a needle. Sometimes putting the pump in for gas. Walking down stairs is a huge problem I have (walking up is fine), but unlike OP I don't have issues with doorways. Depth perception is different for everyone

2) I've completely lost my eye and need to wear eye patches, no fake eye here. People like me do still rub their "eyes." We also usually say "eyes" and "contacts." Except for comedic effect

3) the people that are in your life with regularity just... forget you have only one eye. Even if, like me, you wear obvious eye patches. This means they get confused when people asked what happened. They'll walk on your blind side and get snippy when you run into them. When my sister learned how to cross her eyes she ask me if I could do it, and it took so much coaching for her understand why my answer was no, and that I would not be "just trying." So don't write everyone around them constantly noticing. Most people don't