Iyo lens inoshandura mavara inobva pamusimboti we photochromatic tautometry reversible, iyo lens inogona kukurumidza kusviba pasi pechiedza chakasimba uye ultraviolet chiedza, kuvhara chiedza chakasimba uye kutora ultraviolet chiedza; Mushure mekudzoka murima, lenzi inokurumidza kudzoreredza iyo isina ruvara uye yakajeka mamiriro kuti ive nechokwadi chekufambiswa kwelens. Naizvozvo, iwo mavara ekuchinja lens akakodzera kwazvo kushandiswa kwemukati nekunze, kunyanya munzvimbo yekunze kudzivirira mwenje wakasimba, ultraviolet, glare uye kumwe kukuvadza kwemaziso, kwakakodzera kunze zvakanyanya, maziso anonzwa kusimba kwechiedza, kuderedza kuneta kwemaziso. . Mushure mekupfeka magirazi ekuchinja-mavara, iwe uchaona zvakanyanya zvakasikwa uye zvakasununguka pasi pechiedza chakasimba, dzivisa kutsiva mafambiro akadai sekutswinya, uye kuderedza kuneta kwemaziso nemhasuru dzakatenderedza maziso.