Speaking as someone who was born with an extreme sensitivity to light (it gives me headaches and makes it ultra difficult to see if it is too bright), and as a contacts wearer, which Laura also is, knowing that wearing contacts makes me even more light sensitive, I give her a lot of room on this.
W didn't wear sunglasses and wouldn't...no matter what. I wear contacts, too. Sunglasses, like chewing gum, are inappropriate.