Inkomba ye-refractive ye-Lens iphakeme, ama-lens azacile, ubukhulu obukhulu, ubulukhuni futhi bungcono, kunalokho, i-refractive index iphansi, i-lens iminyene, i-density encane, ukuqina nakho kumpofu, ingilazi evamile yokuqina okuphezulu, ngakho-ke inkomba ye-refractive ngokuvamile iba cishe ku-1.7, futhi ubulukhuni befilimu ye-resin bumpofu, inkomba ye-refractive iphansi uma kuqhathaniswa, ucezu lwe-resin emakethe njengamanje luyinkomba evame kakhulu ye-refractive engu-1.499 noma ngaphezulu, Okungcono kancane inguqulo ye-ultra-thin, enenkomba ye-refractive ezungeze u-1.56 futhi isetshenziswa kakhulu.