Cloudy Eye Cichlid Disease?

Hi,

I received off my brother in law a 4″ x 18 tank with about 18 Malawi Cichlids (Labs / Blues etc) – one of them had what I thought was White Cloud eye – his eyes where covered over with white markings, and he couldn’t see – I was treating phentermine him with Mela Fix and one of the eyes seemed to clear up. However his other eye hasn’t after almost 2 weeks. Additionally the eye that still has issues is ‘flat’ against the skin – i.e. doesn’t have the dome shape the healthier eye does.

Now today I discovered a second fish with the same ‘flat’ eye appearance and a white covering – is this still Cloud Eye – or is it damage to the eye itself or?

And can I treat it?