So sorry to hear this Gillian, it's awful when it goes to the eye, it did that to Smartie and he didn't quite get to his 15 th , poor old Sophie was only 2 months short of her 18th.
The steroids help for a while , but have you tried upping the dose yourself? I ask the vet and he said to try it and it gave him a little longer, but only a couple of weeks.
I always thought Smartie would live longer as he was on Fortekur as well, and I used to think that covers his heart and his kidneys , he will go on for a long time , but no he got cancer!
Sending loads of hugs to you all ( the hug icon has vanished !?)