William has 6 monthly checks with an ophthalmologist because he has Dry Eye and cataracts. I've looked back through my insurance claims but I no longer have the paperwork from the first appointment, which was some years ago. His 6 monthly check ups cost me around £35, but I'm pretty sure the initial consultation was £100 or a bit more.
I'm sure costs vary from one practice to another, and also depending on what tests may be done beyond the initial examination. William's was quite simple and consisted of the vet having a thorough look in each eye, making a lot of notes about his cataracts so that she'd be able to tell if they were getting worse when she next saw him, and doing a Schirmer Tear Test in each eye.
My "normal" vet suspected Dry Eye and could have done a Schirmer tear test, but hadn't picked up on the early stage cataracts or noticed that William had a barely discernible problem with one of his eyelids. So I'm very pleased that I asked for him to be referred and I know his eyes have had the very best care ever since.
I'm sure the ophthalmologist will be able to give you a definitive answer about Bella's eyes, and hopefully it will be something that's manageable and won't get worse