chick with cloudy pupil, blindness, and head twitch

[LadyHayden]

Hello! This is my first time asking for help. I have a chick who is blind and has a slight head twitch. Her pupils are whiteish in color. But her Iris is normal and the pupil is round. It looks like a cataract. Any thoughts? I have 5 other chicks with her. Four are completely normal. Her hatch mate is very slow growing. And also has a twitch. But no blindness or white pupils. She is being a seeing eye chicken for her sister.

 

[casportpony]

How's your chick doing!

 

[LadyHayden]

How's your chick doing!

She is still doing good other than being blind. Her hatch mate has the same condition. But that’s still their only symptoms.