As I have said, your biggest challenge is your anxiety. You need to get control of your anxiety. Benzos are just a bandaid that sedates your mind. You need help to find a workable solution for you.

There is no reason to not have your eyes dilated. It is very difficult to examine the retina without dilation. The confidence of knowing your retinas are healthy is worth far more than the temporary sensitivity to light. Wear dark glasses or get an appointment after the sun sets. Artificial light is substantially less than sunlight. Sunglasses after sunset will completely resolve any light sensitivity.