So we went ahead - on January 5 2004 - with the cataract surgery and a lens implant. That actually cost $2100.00AUD for those interested in this type of surgery, though this was seven years ago!
It was the best thing we did for him ..... it helped him enormously. He could actually see, and best of all the Vet told us even though he will go blind in the right eye (without further surgery) he will always be able to see with his left eye!
Seven years later, we now see the difference ourselves between his two eyes, obviously the cataract is now quite mature in his right eye. But he can still 'see' with his left eye.