A method to treat presbyopia, dry eyes and relieve eye fatigue

The Institute of Ophthalmologists of Japan invented an eye exercise that is useful for presbyopia, dry eyes and relieving eye fatigue.
Do this exercise 4 times a week without moving your head and just following the ball with your eyes
Doing this exercise is recommended for people who study a lot, people who use mobile phones and computers, and people over 50 years old.