What are Stenop Glasses?
Stenop glasses are a visual aid that replaces traditional lenses with dozens of small holes. Also known as pinhole or rasterbrille glasses, they are usually made of metal or plastic. The glasses work on the principle of stenopeic vision — looking through the holes leads the mind to think that vision is focused, making the glasses useful in treating a number of eye disorders. Eye disorders such as myopia are caused by the eye improperly refracting light; stenop glasses block out light and keep the vision centered. Stenop glasses are most popular for relieving the symptoms of cataracts, but can also be used to treat a wide range of eye ailments such as hyperopia, presbyopia and myopia — reducing those symptoms by up to 80 percent. Although they can improve vision they should be used cautiously; they shouldn’t be used while operating machinery or driving because they can reduce peripheral vision. Spanish designer Nacho Marti created an inexpensive, easily transportable version of stenop g