Though you don't want to get surgery to cure your squint eyes ,you have to ask the optometrist for professional treatment guide because squinting often indicate a serious underlying problem that requires professional care. Generally , you will find that the optometrists focus on training the muscles surrounding the eye so that you can move the weaker eye more effectively. So,after receiving instructions, you can do orthoptics exercises at home. But you should keep in mind that vision therapy is a more intensive process that involves retraining not only the eye muscles, but also working with the brain's ability to control eye alignment, focus, movements and information processing. Vision therapy is more effective than home-based exercises alone. Obey the suggestion from optometrists and wish you good luck.