Pinhole glasses are designed to improve eye problems by improving image sharpness and focus. They can improve a range of vision problems such as near or far sightedness, presbyopia, astigmatism, cataracts, and eye strain from computer screens. 100% Brand New product, Lightweight and portable, Stylish design, Pinhole size is 1.31mm. Comfortable and Safe to wear, Pinholes only allow narrow beams of light into your eyes, improving focus. Helps relax eye muscles, reducing strain, Reduces dependence on glasses. Just 15 minutes a day of wearing these glasses will help improve vision within weeks, About 10-20% eyesight improvement in just 2-4 weeks with daily use. Suitable for adults and children, Package comes with brown pinhole glasses (as seen in picture), 150 mm wide. 150 mm front to back. Each lense is 54 top to bottom and 59 at their widest point.