Hope this helps:
1. Light could cause the headaches. You would also have to be careful long
term about the ultraviolet rays entering the pupil and causing cateracts.
2. That's up to you. I found they do not get dark enough though.
3. Yes. I have no knee reflex on the adie's side as well as a non-sweating
forearm.
4. I've had adie since 1992 and it has not gotten to that point yet even
though it is smaller than it was at the beginning.
5. Yes. Does you daughter already wear glasses? She may need reading
glasses or have to hold the material further away. Or may need to have
glasses changed more ofter than one or two years.