yes looks like popeye you should qt him , turn heat up to 80*
Treat with tetracyline 1 packet every other day per 20g along with a small water change for about a week , each fish is different and may take a little longer for the eye to re-seat , some say stick a pin in bubble behind eye and pop it but in my mind that's gross and mean.
I've had great luck qt-ing and medicating with popeye let nature do the rest
after treating detox about a week 5g water change daily