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1.56 I-Semi Finished Blue Cut Bifocal Photo grey optical lens
Ngaphansi kokukhanya kwelanga, umbala welensi uba mnyama futhi ukudluliswa kokukhanya kuyehla lapho kushiswa imisebe ye-ultraviolet kanye nokukhanya okubonakalayo kwamaza amafushane.Kulensi yasendlini noma emnyama ukukhanya kuyanda, kufiphala kubuyele ekukhanyeni.I-photochromism yamalensi iyazenzakalela futhi iyabuyiseleka emuva.Izibuko ezishintsha umbala zingakwazi ukulungisa indlela yokudlulisa umbala ngokushintsha kombala welensi, ukuze iso lomuntu likwazi ukuzivumelanisa noshintsho lokukhanya kwemvelo, linciphise ukukhathala okubonakalayo, futhi livikele amehlo.
