Malensi anoshandura mavara, anozivikanwawo se "photosensitive lenses". Zvinoenderana nemusimboti wephotochromatic tautometry reversible reaction, iyo lenzi inogona kusviba nekukurumidza pasi pechiedza uye ultraviolet irradiation, ichivharira mwenje wakasimba uye inonwisa ultraviolet mwenje, uye kuratidza kusarerekera kunyura kwechiedza chinooneka. Kudzokera kune rima, inogona kukurumidza kudzoreredza isina ruvara yakajeka mamiriro, simbisa iyo lens transmittance. Nokudaro, mavara-anoshandura lenzi akakodzera kushandiswa kwemukati nekunze panguva imwechete kudzivirira kukanganisa kwezuva, ultraviolet chiedza uye kupenya kumaziso.