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1.56 Hoto Kalan tabarau na gani na HMC
Ruwan tabarau na Photochromic, wanda kuma aka sani da "hannun tabarau masu daukar hoto". Dangane da ka'idar mai canza launi-launi mai canzawa, ruwan tabarau na iya yin duhu da sauri a ƙarƙashin hasken haske da haskoki na ultraviolet, toshe haske mai ƙarfi da ɗaukar haskoki na ultraviolet, da kuma ɗaukar hasken da ake iya gani ba tsaka tsaki; lokacin da ya koma cikin duhu wuri, zai iya sauri mayar da mara launi da kuma m yanayi, tabbatar da ruwan tabarau na watsawa. Saboda haka, ruwan tabarau na photochromic sun dace da gida da waje don hana lalacewar idanu daga hasken rana, hasken ultraviolet da haske.
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1.56 FSV Hoton Grey HMC ruwan tabarau na gani
Ruwan tabarau na Photochromic ba kawai daidaitaccen hangen nesa ba, har ma suna tsayayya da mafi yawan lalacewar idanu daga haskoki na UV. Yawancin cututtukan ido, irin su macular degeneration na shekaru, pterygium, cataract na maza da sauran cututtukan ido suna da alaƙa kai tsaye da radiation ultraviolet, don haka ruwan tabarau na photochromic na iya kare idanu zuwa wani matsayi.
Ruwan tabarau na Photochromic na iya daidaita hasken wutar lantarki ta hanyar canza launin ruwan tabarau, ta yadda idon ɗan adam zai iya daidaitawa da canjin yanayin yanayi, rage gajiyar gani da kare idanu.
