Duckling Weak With Eye Problem

[CaliFarmsAR]

Hatched another small batch of ducklings yesterday. One little guy had a problem. Pipped back words and was not progressing. Went ahead and assisted. Today he is small, not walking right, clicking sound when breathes. I also noticed a blueish white spot in each eye. Never seen this before. Tried searching the internet, cant find anything about it. Any ideas? Thanks
View attachment 2067052

Is that a white spot in his eye?

 

[americanchicks]

UPDATE!!!
Last week I sold the lady that adopted him some muscovy ducklings. She said he is doing great still has the spots on his eyes but gets around like nothing is wrong, hooray!