1) Orthokeratology lenses have a history of more than 40 years since they were born in the United States, and they have now reached the fourth generation. In China, some authoritative optometry institutions have been researching and fitting for more than 10 years; however, due to the high price and high technical requirements, they have been fitting within a relatively small range in the past. In recent years, as major hospitals pay more and more attention to children's optometry clinics, orthok
According to clinical reports, compared with patients wearing glasses and orthokeratology lenses, the control effect of orthokeratology lenses is far greater than that of glasses (there are many clinical reports in this regard, and there are certain gaps in the results of different centers at home and abroad. The lesser ones are reports from the Research Center of Optometry of Peking University Health Science Center and the United States, with an average annual increase of about 7 or 8 degrees,