Thank you for the vibes. Timmy is at my local vet. I trust the vet who is on and I know she will do all she can for him. He has been thoroughly checked over and apart from his eyes, that have had problems for years, the only other thing is a thickening in part of his gut.
The vet numbed Timmy's eyes again this morning, and it made no difference to him this time. It seems to be just the gut that is causing him pain.