My first hen is obviously blind in the affected eye. She can see things closer and gets around fine in the coop. My barred rock hen's eyes are both slightly dilated and has significant vision loss in both eyes. She can see some things. We are trying to figure out what she can see. She definitely can pick out her favorite treats from close up! She had some weight loss so I'm trying to fatten her up. She has walked upright for some time, not sure if this is from Marek's or her compensating for her poor sight. She has learned to feel with her wings, feet, and comb to get around. She's a smart girl! My daughters put a towel around her food and water dishes to stop her from knocking them over, but she feels it with her feet and then knows where her food is.