There are 2 blind roosters kept where I live. Each is in a separate cage. One seems pretty happy. The other is worried when I'm around, but might be ok when it's just chickens--I'm not sure.
Some ideas:
I'd recommend providing
wet food (instant oatmeal soaked in milk, scrambled egg yolk, chick starter with applesauce, etc) for the chick.
If you dip his beak in it, the food will stick which should help prompt him to eat of his own accord. Dipping his beak in his water dish should also prompt him to drink.
Put the food and water dishes on top of something (maybe a tuna can if he's tall enough) to raise it high enough that shavings don't get kicked in. And/or put a folded paper towel over the shavings beneath the dishes.
If you can,
keep him in a fairly small area. However, it needs to be long enough that he can walk reasonably far toward or away from the heat lamp as his temperature needs change.
Put the food and water dishes in consistent, set locations and maybe help him slowly "walk" over to them periodically to help him learn where they are. Maybe a corner would be the easiest place for him to find.
Make sure his water dish is pretty drown-proof.
I recommend also giving him drops of
PolyVisol children's vitamins (the kind WITHOUT added iron) to help with his eyes' healing, to strengthen his immune system, and to help with his overall development. You can buy the generic kind for about $4 at any pharmacy. You might want to give him 1 or 2 drops directly each day plus put a drop or 2 in his water so he gets a little to help him all day long.
I SO wish the best for him!
I hope you are able to help him, especially if there's a possibility of his eyesight recovering. However, I realize your circumstances my require very hard choices. Best wishes to you