FWIW, my husband is a developmental optometrist and he said irlen syndrome is not a real disorder. However, if a child is having difficulty with reading and processing speed, and you do not have an explanation for it,he would suggest having a thorough evaluation done by a developmental optometrist. I am not sure where you live but if you go to COVD.org it will connect you with a eye professional that would know what to look for in terms of possible problems that your daughter may be dealing with. Not trying to stir anything up just adding info:).