PREPARATION METHOD OF SOFT LENS FOR INHIBITING ADSORPTION OF PROTEIN

摘要

PURPOSE: A method for preparing a soft lens is provided to obtain an unharmful soft lens for inhibiting the adsorption of proteins, thereby improving the wearing feeling and the lifetime of the lens. CONSTITUTION: The method comprises the steps of treating the surface of a contact lens with plasma to activate the surface; and grafting the protein adsorption inhibiting material represented by the formula 1 onto the surface, wherein R1 is H or methyl group; and R2 is polyethylene glycol, polypropylene glycol, polyethylene glycol-polypropylene glycol copolymer, polyethylene glycol-polypropylene glycol-polyethylene glycol copolymer, poly(vinyl pyrrolidone), their copolymers or their mixtures. The protein adsorption inhibiting material has a molecular weight of 100-10,000. Preferably the plasma treatment is carried out by using the plasma of 1 W to 1 kW; and the grafting is carried out at a temperature of 10-100 deg.C and in the presence of sodium hydrogensulfite as an oxidizing agent.