Lense ea PC, e tsejoang hape e le "filimi ea sepakapaka", ka lebaka la ts'ebetso ea eona e matla ea ho hanyetsa, e boetse e na le khalase e thibelang likulo.Lilense tsa polycarbonate li hanana haholo le tšusumetso, li ke ke tsa robeha.Li matla ka makhetlo a 10 ho feta khalase kapa polasetiki e tloaelehileng, e leng se etsang hore e be tse loketseng bana, lilense tsa polokeho le mesebetsi ea kantle.
Lilense tse tsoelang pele, tseo ka linako tse ling li bitsoang "no-line bifocals," li felisa mela e bonahalang ea li-bifocals tsa setso le trifocals le ho pata taba ea hore u hloka likhalase tsa ho bala.
Li-tag:lense ea bifocal, lense e tsoelang pele, lense ea 1.56 pc