My daughter used this to help her with her Convergence Insufficiency/ After six months of use, we have seen great progress. Six months of Optical Therapy was going to cost our family over $3,000. This number was astronomical for our family who had been hit hard during this pandemic. We are very thankful to have found something affordable and so easy to use. She loves playing the games. I appreciate the assessments that are done regularly and the feedback is good too. Thanks Amblyoplay!