Grid glasses for eye training / sunglasses with german flag design

Stylish pinhole glasses in a striking Germany flag design. Made of robust, lightweight and flexible plastic, which sits comfortably on the nose. The opaque black lenses are precisely perforated with numerous small holes (pinholes). The grid glasses (also called hole glasses) feature a classic full frame and are designed as a one size fits most adults. Functionally, it serves as an aid for short eye relaxation and vision training in everyday life (e.g. when working on the screen) by temporarily increasing the depth of field thanks to the hole grid principle.