Eyeglass lens material and eyeglass lens capable of blocking blue light and method for making the same

A method for making an eyeglass lens capable of blocking blue light, wherein the eyeglass lens comprises a main body, the method comprising the steps of:

• dissolving Ag/SiOx composite nanoparticles in a first alcohol solvent, and adding a surface modifier to modify the Ag/SiOx composite nanoparticles;
• mixing modified Ag/SiOx composite nanoparticles into a resin to form a mixture, and filling a mold with the mixture;
• and
• subjecting the mixture to a material curing procedure until the mixture is cured and thus forms the main body, wherein the main body contains and is mixed with the Ag/SiOx composite nanoparticles,
• wherein the Ag/SiOx composite nanoparticles make up 0.00001%˜10% by weight of the main body,
• wherein the Ag/SiOx composite nanoparticles are made by the steps of:
• dissolving silver nitrate in a solvent, and adding a protecting agent or a polymeric material to form a first solution;
• stirring the first solution while keeping the first solution at a temperature between 25° C. and 150° C.;
• adding a reducing agent solution to the first solution, and allowing first solution added with the reducing agent to rest for 1 hour to form a second solution;
• subjecting the second solution to centrifugation to obtain silver nanoparticles;
• re-dissolving the silver nanoparticles in a second alcohol solvent, and adding tetraethoxysilane or tetramethoxysilane to the silver nanoparticles-re-dissolved second alcohol solvent to form a third solution;
• and
• stirring the third solution at room temperature for 22˜26 hours to obtain the Ag/SiOx composite nanoparticles.