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1.56 I-Semi Finished Blue Cut Bifocal Ifoto engwevu iilensi zamehlo
Ngaphantsi kokukhanya kwelanga, umbala we-lens uba mnyama kwaye ukuhanjiswa kokukhanya kuncipha xa kukhanyiselwa yi-ultraviolet kunye ne-short-wave ebonakalayo.Kwilensi yangaphakathi okanye emnyama ukuhanjiswa kokukhanya kuyanda, buyela ekukhanyeni.I-photochromism yeelensi iyazenzekela kwaye ibuyiselwa umva.Iiglasi eziguqula umbala ziyakwazi ukulungelelanisa ukuhanjiswa ngokutshintshwa kombala we-lens, ukwenzela ukuba iliso lomntu likwazi ukulungelelanisa utshintsho lokukhanya kwendalo, ukunciphisa ukukhathala okubonakalayo, nokukhusela amehlo.
