Dead Eye
I had a partial retinal detachment in my left eye a few years back. They decided to reattach it by peeling back the eyelids, make the eye even more elongate than near-sighted normal by wrapping it with a silicone band (thus bringing the retina back into contact with the eyeball), and then use liquid nitrogen to freeze the eye from the outside-in to make the reattachment. Lots of manhandling of the eye socket, and related bruising.

I went home with an eye patch, which was good, not because it was sensitive, or anything, but because the bruised and battered eye looked dead. No personality showed forth for nearly a week. Even more striking in appearance than having a stroke! I could frighten small children, large adults, and cognizant animals alike by whipping off the patch, moaning, and running towards them.
(Perv With A Dog had his eyes pecked out by scrub jays on, Sat 13 Jul 2013, 0:38, Reply)