stevegee,

Dilation will not be a problem. Take a wide brimmed hat and dark sunglasses or get the throw away glasses. I keep a pair of old people sunglasses with dark side lenses for such needs.

Light sensitivity is not a "Am I going to be damaging my brain?" issue. It is just uncomfortable for a few hours.

I am extremely photosensitive. Have been since 1970. I've been dilated more than 6 times this past year. NO BIG DEAL.