Hi, my nearly 9 year old daughter has SEN's and in a photo I took of her, she was being silly and went cross eyed. I noticed that only one eye went inwards though. I asked her to go cross eyed again and it was the same again. What could this be? I know that eyes always move together. Could it be a lazy eye? Should I make an appointment with the optician before she's due to go again (May, I think) Thanks. 