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Amalensi e-HMC Optical anombala angu-1.56
Amalensi e-Photochromic, aziwa nangokuthi “amalensi azwela ukukhanya”. Ngokomgomo wokusabela okuguqukayo kokushintshashintsha kombala, ilensi ingaba mnyama ngokushesha ngaphansi kokukhanya nemisebe ye-ultraviolet, ivimbe ukukhanya okunamandla futhi imunce imisebe ye-ultraviolet, futhi imunce ukukhanya okubonakalayo ngokungathathi hlangothi; uma ibuyela endaweni emnyama, ingabuyisela ngokushesha isimo sokungabi nombala nokusobala, iqinisekise ukuthi ilensi iyadlulisa. Ngakho-ke, amalensi e-photochromic afanele ukusetshenziswa ngaphakathi nangaphandle ukuvimbela umonakalo emehlweni ngenxa yokukhanya kwelanga, ukukhanya kwe-ultraviolet kanye nokukhanya okukhanyayo.
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Amalensi e-Optical e-FSV Photo Gray angu-1.56
Amalensi e-Photochromic awagcini nje ngokulungisa umbono, kodwa futhi amelana nomonakalo omkhulu emehlweni ngenxa yemisebe ye-UV. Izifo eziningi zamehlo, njengokuguga kwe-macular, i-pterygium, i-senile cataract nezinye izifo zamehlo zihlobene ngqo nemisebe ye-ultraviolet, ngakho-ke amalensi e-photochromic angavikela amehlo ngezinga elithile.
Amalensi e-photochromic angalungisa ukudluliselwa kokukhanya ngokushintsha kombala welensi, ukuze iso lomuntu likwazi ukuzivumelanisa nokushintsha kokukhanya okuzungezile, linciphise ukukhathala kokubona futhi livikele amehlo.
