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Iilensi ze-Optical ze-1.59 PC Progressive Photochromic Gray HMC Optical
Ilensi etshintsha umbala isekelwe kumgaqo we-photochromatic tautometry eguqukayo, ilensi inokutshintsha umbala ngokukhawuleza phantsi kokukhanya okunamandla kunye nokukhanya kwe-ultraviolet, ivale ukukhanya okunamandla kwaye ifunxe ukukhanya kwe-ultraviolet; Emva kokubuyela ebumnyameni, ilensi ibuyisela ngokukhawuleza imeko engenambala necacileyo ukuqinisekisa ukudluliselwa kwelensi. Ke ngoko, ilensi etshintsha umbala ifanelekile kakhulu ukusetyenziswa ngaphakathi nangaphandle, ngakumbi kwindawo engaphandle ukuthintela ukukhanya okunamandla, i-ultraviolet, ukukhanya kunye neminye imonakalo emehlweni, ifanelekile ngaphandle ngakumbi, amehlo anovelwano ekuvuseleleni ukukhanya, anciphise ukudinwa kwamehlo. Emva kokunxiba iiglasi ezitshintsha umbala, uya kubona ngokwendalo nangokukhululekileyo phantsi kokukhanya okunamandla, uphephe iintshukumo zokuhlawula ezifana nokukrwitsha amehlo, kwaye unciphise ukudinwa kwamehlo kunye nemisipha ejikeleze amehlo.
