Sample custom ODM no degree color lenses

TONG REN HUI (CHONGQING)TECHNOLOGY CO.LTD's products are Aqua blue plate contact lenses, 0 degree contact lenses, Myopia color contact lenses and Artistic contact lenses are hema based hydrogel, refractive index 1.433-1.440, oxygen permeability coefficient (DK value) 10. HEMA material, chemically known as 2-hydroxyethyl methacrylate, is a colorless, transparent and easily flowing liquid that is widely used in dental fillings, drug sustained release, burn coating, organ transplantation, contact lens manufacturing, cell culture, and biomolecular and enzyme immobilization. HEMA material has good biocompatibility and is used in the manufacture of soft contact lenses. Due to its soft and comfortable characteristics, HEMA has quickly replaced the traditional polymethyl methacrylate (PMMA) contact lenses ‌. Color contact lenses usually use HEMA mixed material, HEMA as the matrix, adding other accessories to the hydrophilic soft lens material. This material has good oxygen permeability a…