Anti-myopia apparatus for reading and writing

This invention is about a read-write myopia prevention and cure instrument, which contains: support (1), once plane reflecting mirror (4), quadratic plane reflecting mirror (11) and eyesight (7). Its characteristic is: once plane reflecting mirror (4) directly reflect ray of eyeshot object, and its total length of optical path (Su¢S1+S2+S3) is larger than 300mm, less than 5000mm; Lens or lenses group are installed at the eyeglass. This invention has broad eyeshot and strong suitability; using it, eyes will not fag easily, read-write is nature, work or study time can be prolong; it can prevent and cure myopia effectively, can enhance prevention and cure effect according to specific crowd or individual myopia degree and the viewing-object distance and angle of sight line can be melodied. It is convenient and flexible, it can correct sitting gesture and prevent cervical vertebra disease. It is especially suitable to long-term short-distance read-write people.