Filefish acting weird

[Vadim]

Hello, mates. While feeding my filefish today I noticed it was having hard time grabbing food with its mouth. It would lurch after a piece of mysis and miss it, then go after another piece and miss it again. It also seemed to be less active during feeding. Any ideas what its problem is? Is it some kind of sickness? Thanks in advance

 

[Humblefish]

Is he bumping into things, like he might be blind? How do his eyes look?