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1.59 PC Blue yanke Bifocal Invisible Photochromic Grey HMC ruwan tabarau na gani
Kamar yadda sunan ke nunawa, madubin bifocal yana da haske guda biyu.Gabaɗaya, ana amfani da shi don ganin nisa, kamar tuƙi da tafiya;Abin da ke biyo baya shine ganin haske kusa, don ganin kusa, kamar karatu, kunna wayar hannu da sauransu.Lokacin da ruwan tabarau na bifocal kawai ya fito, hakika an ɗauke shi azaman Bisharar myopia + presbyopia, yana kawar da matsala na ɗauka da lalacewa akai-akai, amma kamar yadda mutane ke amfani da shi, an gano cewa ƙarancin ruwan tabarau na bifocal shima yana da yawa.
