I-resin yinto yekhemikhali ene-phenolic structure. I-resin lens bubunzima obulula, ukumelana nobushushu obuphezulu, ukuchasana kwempembelelo akukho lula ukwaphuka, ephukileyo ayinayo imiphetho kunye neekona, ikhuselekile, inokuthintela ngokufanelekileyo imitha ye-ultraviolet, i-resin lens ikwaluhlobo oluthandayo lwezibuko zamehlo kubantu be-myopia okwangoku.