Astigmatism correcting glasses, has conical shaped through hole situated near circumference of each non transparent lens having much larger inclination angle than holes situated in central part of lens supported by frame

摘要

The glasses (1) has two non transparent lenses (12) supported by a frame (11) and a side piece (13). The lenses (12) are respectively provided with conical shaped through holes (121), where each hole has an outer side whose diameter is much larger than diameter of an inner side. The hole situated near circumference of each lens has much larger inclination angle than the holes situated in central part of the lens.