Gilashin masu canza launi na iya canza launi tare da haske, kamar launin ruwan kasa ko tawada a cikin haske mai ƙarfi na waje, kuma a fili a cikin gida, na iya taka rawar kariya a cikin idanu, musamman a cikin rigakafin ultraviolet radiation da shuɗi mai tace haske shine na babban taimako.
Ga masu ciwon myopia da suke bukatar sanya tabarau don fita waje, gilashin masu canza launi na iya ceton nauyin maye gurbin gilashin gilashi da tabarau, kuma yana iya magance matsalar cewa wasu matan ba su da sauƙi don ɗaukar gilashin da yawa ba tare da aljihu ba.