Contact lenses are one of the main ways to correct myopia. In China, a considerable proportion of soft contact lenses are worn, but because of the low oxygen permeability of soft lenses, easy deformation, irregular fitting and use and many other factors make many patients wearing soft lenses experience eye dryness, fatigue, foreign body sensation, blurred vision and even eye infection in serious cases, causing irreversible vision loss. Breathable rigid corneal contact lenses (RGP for short), the latest generation of contact lenses, made of a special aviation material through CNC lathe precision machining, RGP, whether from the design, production, materials and fitting philosophy have their unique nature, has been widely used and carried out outside the country, wearing contact lenses in the patient RGP fitting rate of 55% in Japan, 40% in Europe and the United States, Hong Kong and Taiwan The RGP prescription rate is 55% in Japan, 40% in Europe and the United States, 30% in Hong Kong and Taiwan, and the number of myopic patients wearing RGP in mainland optometry clinics is increasing year by year. RGP is increasingly recognized by clinicians and praised by patients for its unique advantages. High oxygen permeability performance ensures that the eye surface gets sufficient oxygen, which greatly reduces complications compared to ordinary soft lenses and is the safest contact lens to wear at present; it forms well and has good optical performance to ensure you get clear vision, even with high astigmatism, irregular astigmatism, and aphakic eyes will also get good correction. It has a hard material, easy to use, convenient care, and much longer life than ordinary soft lenses; in addition a large number of clinical studies have shown that it can also delay the development of myopia in adolescents, making it one of the ideal vision correction options for adolescents. RGP has been designated by the Ministry of Health as the “100 items in 10 years” promotion project (the only project in ophthalmology), through clinicians to conduct a comprehensive examination of each patient, according to the examination data tailored to give the most accurate, the most scientific correction, according to myopia to buy a pair of soft contact lenses will be less and less, fitting a pair of RGP It will become a trend.