RGPs can generally be worn for about 1 year, but the exact wearing time is related to the patient’s prescription growth and lens wear. RGP is a rigid corneal reshaping lens. Compared with traditional soft contact lenses, RGP lenses have higher oxygen permeability, are stronger and better moisturized. RGP contact lenses are suitable for people with high myopia, hyperopia or astigmatism who can’t wear frames and people who wear contact lenses for a long time, and also can be used to control the growth of myopia in teenagers who are growing fast. Generally, the life span of RGP is about one to two years, and it is necessary to replace the glasses with new ones after two years of use. The replacement time should also be determined according to the wear and tear of the glasses and the individual’s wearing habits. After wearing RGP rigid keratoplasty lenses, patients should also go to the hospital for regular checkups, and it is recommended that patients wear or replace them under the guidance of their doctors.