Is Ubisoft's new thermal eye protector easy to use and reliable?

It must be easy to use, otherwise Ubisoft will not spend money to develop this. People have studied it for so long that it must have a protective effect on teenagers' eyesight before listing. I heard that this time Ubisoft used the ancient method of hot moxibustion to help teenagers save their eyesight health. The belt can improve eye metabolism, supplement eye nutrition, relax muscles and improve eyesight. I took my child to experience it, and the child said that he felt very comfortable and his eyes were no longer tired and painful.