Hey everyone. Long time no talk. If anyone remembers me, my yorkie is now 10 and is not having seizures anymore. Now he's having some eye issues instead. 
 
He's had vision issues since I rescued him (age 2). He goes in for regular checkups every 6 months, and he always fails his menace test. I was told he had nuclear sclerosis but his eyes were ok.  
In January I noticed he had a cataract maturing in his right eye. He has an immature cataract in his left eye I've been watching. I brought him in for a special visit and they agreed with the cataract assessment. I was told to monitor his eyes for any bulging or discomfort, but otherwise he would be ok since he's never had much vision to begin with. 
Two weeks ago the white of his right eye became very red. I took him to the vet immediately. They tested his pressure, tear production, and did a stain of both eyes. All normal. I was given neopolydex to apply to his eyes. 
After two weeks, his right eye showed no improvement and his left eye started becoming red too. I took him back to the same vet and they repeated the same tests, all with normal results. They referred me to an eye specialist. I am taking him in Wednesday afternoon. 
Would anyone have any advice for me? Questions I should ask during my visit?  
I am concerned cataract surgery may be the immediate suggestion. I do not want to put him in through that unless it's absolutely medically necessary. Not because of the cost, but because of the stress on him. Stress was often the cause of his seizures. He doesn't handle it very well. He is doing just fine with his zombie eyes right now.  
Thanks for taking the time to read this.