Grenhaven Pinhole Glasses for Eye Training and Vision Quality Improvement, Perforated Eyesight Strengthening Glasses, Black

QUALITY OF VISION: Grenhaven pinhole glasses are designed for eye training and relaxation and can help improve the quality of vision. PINHOLE DESIGN: With pinhole design, the black glasses only allow narrow beam of light to enter your eyes, which can help to exercise your eye muscles and relax your eyes, improve vision or eye focusing problems. Suitable for both men and women. APPLICATION: Wear these pinhole glasses for just 15 minutes a day, and your vision will become clearer, whether you are near-sighted or farsighted. This means you can use the pinhole glasses just like your regular glasses, for activities such as reading, working on the computer, or taking a walk in the woods. However, please be aware that due to the limited peripheral vision, do not wear them while driving. PREMIUM MATERIAL: Grenhaven perforated pinhole glasses are made of high quality pvc material. They are comfortable to wear and have a stylish design. This pinhole glasses can be worn by anyone, whether you're short or long-sighted. PACKAGE CONTAINS: 1x black pinhole glasses.