Iilensi zePhotochromic zenziwe ngobuchule ukuze zilungelelanise ngokuzenzekelayo ukusuka kucacile ukuya kumnyama (kunye nangenye indlela). Ilensi yenziwe kukukhanya kwe-UV kwaye ishenxisa isidingo sokuhlala utshintsha phakathi kweendondo zakho zamehlo kunye nezibuko zelanga. Ezi lens ziyafumaneka kuzo zombini iSingle Vision, bifocal kunye neProgressive.
Iilensi ze-Bifocal zibonisa ukulungiswa kombono womgama kwisiqingatha esiphezulu selensi kunye nokulungiswa kombono okufutshane ezantsi; igqibelele ukuba ufuna uncedo ngazo zombini. Olu hlobo lwelensi luyilelwe ukuba lusebenze ngokufanelekileyo njengeeglasi zokufunda zombini kunye neendondo ezimiselweyo ezimiselweyo.
Iilensi zeBifocal zisebenza ngokubonelela ngemigqaliselo emibini eyahlukeneyo kwilensi enye. Ukuba ujonga ngokusondeleyo kolu hlobo lwelensi uyakubona umgca onqumla kumbindi; kulapho kuhlangana khona imimiselo emibini eyahlukeneyo. Ekubeni sihlala sijonge phantsi xa sifunda incwadi okanye sijonge iifowuni zethu, isiqingatha esisezantsi selensi yenzelwe ukunceda ekufundeni.
Ukukhanya okuluhlaza okwesibhakabhaka, okukhutshwa lilanga, kodwa nakwizikrini zedijithali esiye sancamathela kuzo, akubangeli nje ubunzima bamehlo (okunokukhokelela ekubeni ube nentloko ebuhlungu kunye nokungaboni kakuhle) kodwa kunokuphazamisa umjikelo wakho wokulala.
Uphononongo, olupapashwe ngoJuni ka-2020, lufumene abo bantu badala bane-avareji yeeyure ezi-4 kunye nemizuzu engama-54 kwilaptop ngaphambi kokuvalwa kunye neeyure ezi-5 kunye nemizuzu eli-10 emva koko. Bachithe iiyure ezi-4 kunye nemizuzu engama-33 kwi-smartphone ngaphambi kokuvalwa, kunye neeyure ezi-5 kunye nemizuzu emi-2 emva koko. Ixesha lesikrini liye lanyuka ukubukela umabonwakude kunye nemidlalo, nayo.
Xa unxiba iilensi ze-photochromic block block, awufumani nje izibonelelo zoncedo; Uwakhusela amehlo akho ekuvezweni ngokugqithisileyo kukukhanya okuluhlaza okonzakalisayo. Kwaye uyilo lwe-Bifocal lukusindisa enkathazweni yokuphatha iperi ezimbini zeeglasi ukuba unengxaki yeglasi enye yokusetyenziswa kufutshane kwaye enye isetyenziselwa ukujonga kude.