Sydney is back to his normal food - almost straight away once he got home... He has been using a lubricant in his eye since loosing the other one almost two years ago but that was only twice per day, these drops are 4 times a day, 2 different drops each time. So I think he's a little sick of them to be honest.
We have a check up at the vet today so we are hoping that the ulcer is still reducing.. It's difficult to see because it's on the site of a "puppy" scratch right in the middle of his eye from one of his litter mates!!