I hatched 4 poults a few days ago and as they were all in the incubator drying off I didn't realize any issues with them. Once I put them in the brooder though I realized one was starting to walk very odd. It would slowly move its head forward with every step and was bumping into things. One of its feet was also curled. I picked it up and looked at its face closer and one eye is very small and cloudy, the other is normal sized but seems to be mostly covered by it's eyelid and just the top section of the eye can be seen when it's open. I'm not sure if it would be able to see with that one if it was uncovered.
I tried to figure out if he was completly blind or if he could see just a bit from his one eye. After testing him for a few minutes I figured out it is most likely completly blind or at most has extremely limited vision from the one eye. I sprinkled food around his face and got no reaction, moved my hands around him, wiggled my fingers around in front of him, all no reaction. I took him out and tried to get him drinking and eating but as you can imagine it didn't work because he is blind. So I put him back with the other poults and figured I would have to euthanize him. I decided to let him go for a day or two to see if maybe he could figure things out just from being around the other poults who were all eating and drinking well. And very surprisingly he did figure things out. First he figured out how to drink. He would wonder till he stepped into their water dish then he would start to take sips while standing in it. The next day he still had not figured out how to eat yet but was getting better at drinking and would just come to the edge of the dish and put one foot on it then start to drink instead of going into the dish. The 4th day I still had not seen him eat yet but he didn't seem to be getting any weaker so I statted peaking in on them more often to see if I could confirm that he was eating. Eventually I did see him eat, the same way he drank, wondered into the food dish and started pecking around. Today he is doing well and pecks around randomly at the ground too as he walks, most of the time there is nothing near where he is grabbing but sometimes he grabs a bit of food that got kicked out of the dish. I'm really amazed how this poult was able to figure things out while being blind when last year I had two perfectly healthy ones I couldn't get to start eating. I'm not positive he will live yet but I'm more hopeful now that he is eating and drinking. I have some videos of him that im going to try and upload but it takes like 5 minutes just for me to load a picture in so that might take a very long time.