Cloudy eyes can be a sign of a bacterial infection. However, they can also be caused by poor water conditions. Ensure that the tank has pristine water parameters and give it some time to see if they clear up. Medicate only as a last resort. Honestly, kind of like nursing a death row inmate back to health before the exocution. This will sadly have a negative outcome. I do commend you for trying.
Some people are like slinkies...they serve no real purpose yet can still bring a smile to your face when you push them down the stairs!:p
Have a great day! Brian