My son is 2 years old and before one month I started notice there was a deviation in his eyes in sometimes . So I visited hospital and they told us to do patching exercise for 2h per day in the alternative eyes for 3 month. But now I can see the squint very frequently. So shall I increase the number of exercise hours? And suggest what are the exercises that I can follow. Doctor haven't suggested any particular training and told to show bright colour games during patching exercise .