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1.56 Foto Lilense tse mebala-bala tsa HMC Optical
Lilense tsa Photochromic, tse tsejoang hape e le "li-photosensitive lenses". Ho ea ka molao-motheo oa khanya e khanyang interconversion reversible reaction, lense e ka fifala ka potlako tlas'a mahlaseli a mahlaseli a khanyang le a ultraviolet, e thibela khanya e matla le ho monya mahlaseli a ultraviolet, le ho monya leseli le bonahalang ntle le lehlakore; ha e khutlela sebakeng se lefifi, e ka tsosolosa kapele boemo bo se nang 'mala le pepeneneng, ho netefatsa lense ea phetisetso. Ka hona, lilense tsa photochromic li loketse bakeng sa tšebeliso ea ka hare le ka ntle ho thibela tšenyo ea mahlo ho tloha letsatsing, khanya ea ultraviolet le mahlaseli.
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1.56 FSV Photo Gray HMC Optical lenses
Lilense tsa Photochromic ha li lokise pono feela, empa hape li hanela boholo ba tšenyo ea mahlo ho tsoa ho mahlaseli a UV. Mafu a mangata a mahlo, a kang lilemo tse amanang le macular degeneration, pterygium, senile cataract le mafu a mang a mahlo a amana ka ho toba le mahlaseli a kotsi a ultraviolet, kahoo lilense tsa photochromic li ka sireletsa mahlo ho isa tekanyong e itseng.
Lilense tsa photochromic li ka fetola phetisetso ea leseli ka ho fifala ha lense, e le hore leihlo la motho le khona ho ikamahanya le phetoho ea leseli le haufi, ho fokotsa mokhathala oa pono le ho sireletsa mahlo.
