Cataracts. really? You're only 4 1/2 years old. No wonder your behavior has become more insecure and scared. You have an appointment with a veterinary opthamologist next week. Here's hoping it goes well.
Marni - the veterinary opthamologists are amazing. My dog had corneal ulcers in both eyes, it took a bit, but they are all healed. Best of luck to you and Rowena.