November 5, 2024 12:27
Rigid Gas Permeable (RGP) contact lenses, also known as OK lenses, are specially designed high - oxygen - permeable lenses. After wearing them for a period of time, the hydraulic pressure formed by the tear fluid between the lens and the cornea can change the shape of the cornea and temporarily reduce myopia. For Rigid Gas Permeable (RGP) contact lenses, the following are the applicable inspection standards, import document review requirements, and standardized declaration requirements: