Pop-eye Leopard Wrasse Main Display

So I have a small Blue-Star Leopard Wrasse that disappeared for a couple days which was weird because how set on a schedule he has been for the last couple weeks. Well yesterday he came out with one of his eyes slightly popped out and a little cloudy but hard to tell.

So I have seen that it could injured or its part of a bacterial infection. So I would like to do a wide bacterial treatment but he is in my main display. I don't want to stress him out trying to chasing him around the tank. He is eating very well. I keep feeding him and making sure water is top quality.

So do I wait a time period to see if it goes down? If not then try to catch him? Or is there something I can use in a reef tank that wont have a negative effect on corals and fish? Tank is 175 gallons.

Thanks