If you were worried about his eyes enough to ask the vet then why not go with what he recommends?

If he has looked and with his expertise said that they were inflammed then surely you would have gone with the recommended treatment for a measly £12

Why post pics and ask what people think when you have already been told by a qualified Vet. An expert eye looking at him in the flesh is going to be far more accurate than a photo on here.

If Freddie was mine I would be treating those eyes straight away