Contact lenses have been popular in China for more than two decades as an alternative to regular frames. Contact lenses are preferred by young people and special professionals because they do not affect the appearance of the face, have a wide field of vision, no visual distortion and are easy to wear. However, incorrect fitting, improper fitting and care will endanger the health of the eyes and even seriously affect vision. Contact lenses have certain advantages, but also certain limitations, especially the common soft contact lenses on the market today, such as more cumbersome care procedures, shorter service life, improper fitting and care may cause eye allergies or inflammation. So is there a better contact lens than the current common soft contact lens? Yes, there is, and that is breathable hard contact lenses. RGP lenses are currently the best contact lenses in the world and account for a large percentage of all contact lens wearers in developed countries, such as Japan where 55% of contact lens wearers wear RGP lenses. However, RGPs require skilled professionals to fit, so there are fewer RGP wearers in China. Compared to soft contact lenses, the biggest advantage of RGP is that it has higher oxygen permeability, which keeps the cornea healthier and allows for longer continuous wear. Because RGP lenses are made of rigid material, they do not change with the shape of the cornea, and can be used to correct not only common nearsightedness and farsightedness, but also high astigmatism, irregular corneas and pathological corneas, such as round vertebral corneas, which means that RGP lenses have a wider range of correction than soft contact lenses. RGP lenses have a higher optical performance than soft contact lenses, allowing for clearer vision. At the same time, unlike soft contact lens materials, RGP materials do not absorb water and do not cause deterioration of the lens caused by protein and lipid deposits in tears. Excellent materials and easy care make RGP lenses last longer, and if properly preserved, a pair of RGP lenses can last for several years unless the prescription of the wearer’s eyes changes. In particular, it is worth mentioning that decades of prescription practice in developed countries have found that long-term wear of RGP lenses can slow down the progression of myopia, which is a boon for young myopic patients and parents. In short, RGP has the advantages of soft contact lenses without the disadvantages of soft contact lenses, and is clearer, more comfortable and safer to wear. The RGP lenses require more specialized knowledge and skills, so you must go to a regular hospital ophthalmologist or ophthalmologist to have your lenses fitted and be “customized” according to the results of the fitting examination. “The lenses should be customized according to the results of the examination.