Igwefoto resin bụ ụdị oghere anya nke ejiri resin mee dị ka akụrụngwa, nke a na-ahazi, megharịa ma na-egbu maramara site na usoro kemịkalụ ziri ezi. N'otu oge ahụ, a pụrụ ikewa resin gaa na resin eke na resin sịntetik.
Uru nke lenses resin: mmetụta siri ike na-eguzogide, ọ dịghị mfe imebi, ezigbo nnyefe ọkụ, nnukwu refractive index, ìhè arọ na ọnụ ala.
Igwe oghere PC bụ ụdị oghere a na-emepụta site na ikpo ọkụ polycarbonate (ihe themoplastic). A na-emepụta ihe a site na nyocha mbara igwe, ya mere a na-akpọkwa ya ihe nkiri oghere ma ọ bụ ihe nkiri oghere. Ebe ọ bụ na resin PC bụ ihe thermoplastic nwere ihe ndị magburu onwe ya, ọ dị mma karịsịa maka ime anya anya.
Uru nke lenses PC: 100% ụzarị ultraviolet, enweghị odo n'ime afọ 3-5, nguzogide mmetụta dị ukwuu, akara nhụsianya dị elu, ike ndọda ọkụ (37% dị ọkụ karịa mpempe akwụkwọ resin nkịtị, na nguzogide mmetụta dị elu dị ka mpempe akwụkwọ resin nkịtị) 12 mgbe resin!)