Pinhole Glasses for vision improvement.
Pinhole Glasses help to exercise eye muscles, relax your eyes and greatly improves vision. The pinhole design allows only narrow beams to enter your eyes. It improves focus and reduces fatigue. By wearing these pinhole glasses 15 minutes per day, can activate your natural vision to see clearly and reduce the dependence on glasses.
Pinhole glasses can be worn by anyone! whether you are nearsighted or farsighted.