Thank you for post Sylvette :)

Light sensitivity

http://health.groups.yahoo.com/group/Autism-Mercury/message/32513



"Mydriasis (big pupils) is one of the signs of mercury poisoning. It
goes along with accomodative insufficiency (not being able to focus at
all distances) and convergence insufficiency (not being able to point
both eyes at things close up, which requires turning them in a bit)."

Andy Tweet