Iilensi zephotochromic zitshintsha umbala ekukhanyeni kwelanga.Ngokuqhelekileyo, zicacile ngaphakathi nasebusuku kwaye zitshintshe zibe ngwevu okanye zibe mdaka xa zibekwe kwilanga elithe ngqo.Kukho ezinye iindidi ezithile zeelensi zefotochromic ezingaze zijike zicace.
Ilensi eluhlaza okwesibhakabhaka yilensi enqanda ukukhanya okuluhlaza okwesibhakabhaka ekubeni kungathukuthezi amehlo.Iiglasi ezikhethekileyo ezichasene nombala oluhlaza okwesibhakabhaka ziyakwazi ukwahlula ngokufanelekileyo i-ultraviolet kunye nemitha kwaye zinokuhluza ukukhanya okuluhlaza okwesibhakabhaka, okufanelekile ukubukela ikhompyuter okanye ukusetyenziswa kwefowuni ye-TV.
Iithegi:Iilensi zebhlowu eziluhlaza, iilensi ze-Anti-blue ray, iiglasi ezisikiwe eziBlue, ilensi yephotochromic