TR90 Eyeglasses Frames Women Man Likhalase tsa Photochromic

Likhalase tse khahlanong le boputsoa tse fetolang mebala ke motsoako oa lilense tse fetolang mebala le likhalase tse khahlanong le boputsoa.
Molao-motheo oa ho fetola mebala: Lisebelisoa tse khethehileng tse khonang ho fetola mebala, tse kang silver halide, li kenngoa lenseng. Ha lisebelisoa tsena li pepeselitsoe khanyeng ea matla a sa tšoaneng kapa maqhubu a fapaneng, li kopana le lik'hemik'hale tse etsang hore lense e fetole 'mala. Ka mohlala, libakeng tse ka hare kapa tse tlaase, 'mala oa lense o bobebe kapa o bonaletsa; Ha e pepesehetse khanya ea letsatsi kapa khanya e matla, thepa ea photochromic e ea tsosoa 'me 'mala oa lense oa fifala.
E ka thibela ka katleho tšenyo ea leseli le leputsoa mahlong, 'me ka tsela e iketsang e fetola' mala oa lense ho latela phetoho ea leseli la tikoloho, e ikamahanya le maemo a fapaneng a leseli, 'me e fokotsa ho se khathatsehe ha mokhathala oa mahlo, ho omella le matšoao a mang.