Black Unisex Vision Care Pin hole Eyeglasses Pinhole Glasses Eye Exercise New 100% brand new and high qualityColor: BlackMaterial: PlasticThis is one of pinhole glasses! It also can serve as a pair of fashion glassesSpecial designed to improve eyesight, especially eye focusing problemsSuitable for both adult or children who has the problem of myopia, hyperopia, and astigmatism ,and age from child to aged people, etc.Wearing for 15 minutes one day will help to improve your eyesight within 2-4 weeks Activates your natural vision ability to see clearlyEliminates stress and strain caused by glassesHelps you see clearly near and farPromotes vision habitsTheory is very simple: when the eyes can only look through the small holes, they naturally change focus to a relaxing standard, so that the eyeballs are relieved from the previous nervous focusEliminates eyestrainPinhole Glasses Do Well in The Following Eye Problems:Myopia (short sightedness)Hyperopia (long sightedness)Presbyopia (age-related reduced range of focus)AstigmatismCataractsEye strain (from computer screens) Feel free to contact us for any questions !