im positive that it is just the tissue around the eye which holds the eyeball into his socket. not a sign of disease.
check out this picture of my guy. 100% normal. i can only see it when he is looking "sideways" and not straight ahead.
http/picasaweb.google.com/loraxchick/BettaTank1216#5415896711992257906
no need for medicine.
cheers
I know it does look like normal connective tissue in the picture but it is honestly not.
It did only appear at the start of the week when he was ill. It is only on the one eye as well.
I read on some sites people saying that their betta's have had similar things, they called popeye or at least a form of popeye.