Pets

and was disoriented, and the cause was high blood pressure. The vet gave her a blood pressure medicine (pill form like people take) which I could not get down her, so we ended up with transdermal BP meds that worked very well. If you're not familiar with transdermal, you just rub the dosage into the inside of the ear, so it's very easy. Some of her sight did return, but she adjusted after a time to limited sight and the disorientation subsided.

I hope it turns out to be something simple.

Edited to add that my cat lived to be 20 years old, no other medications required.