That's a great result, but you just cant be too careful when it comes to their eyes. My son had an occasional squint when he was about 18 months old - it was one of those things that you you would see, blink and it was gone. It turns out that he was looking at the eyelashes of his other eye! He has very long eyelashes and a very flat bridge of his nose, so he could see them if he crossed his eye. He is 7 now and does wear glasses as he is short sighted, he has a tough time getting them to fit properly because of his dinky little nose.