False Julii Cory has one protuding eye

Hey guys,

I have a 29 gallon tank with 5 peppered Cory's, 4 False Julii Cory's, 8 Neons and one betta. Today I noticed that one of the Julii cory has just one eye that is protruding out and seems lethargic. The other one is fine. There is no redness around the bad eye. Anybody have any idea or suggestions on what to do? Can this be popeye? All of the other Cory's and fish are perfectly fine. My water parameters are

Ammonia: 0ppm
Nitrite: 0ppm
Nitrate: 10-20ppm
Temp: 77.8 F
pH: 6.6

Use a medication that treats pop eyes, gravel vac and water change

Wipe the inside of the glass with a clean fish sponge.

Do a 75% water change and gravel clean the substrate every day for a week.
Make sure any new water is free of chlorine/ chloramine before it is added to the tank.

Clean the filter if it hasn't been done in the last 2 weeks.

Monitor the fish and if there's no improvement after a couple of big water changes and gravel cleans, then post another picture and look at chemical medications.