My son is 6 years old and has a "lazy eye" that required 2 years of patching and glasses. This treatment helped but very little. I decided to try this method and after almost 3 months I can barely notice his eye being "lazy". It was definitely hard to get him to want to play these games at first. Wearing his glasses and the colored pair on top was very uncomfortable in the first few weeks. He eventually got used to it. Also, it was challenging for him to play some of the games because he doesn't play video games at all. But we pushed through all that and didn't give up. I ended up having to bribe him, which worked! In the end, we are happy we did this. I have yet to do a follow up with his doctor to confirm how much he has improved, but we can definitely see the difference just by looking at his eye.