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1.59 PC Blue cut Bifocal Invisible Photochromic Gray HMC iilensi Optical
Njengoko igama libonisa, isipili se-bifocal sinokukhanya okubini. Ngokuqhelekileyo, isetyenziselwa ukubona umgama, njengokuqhuba nokuhamba; Oku kulandelayo kukubona ukukhanya okukufutshane, ukubona okukufutshane, njengokufunda, ukudlala ifowuni ephathwayo njalo njalo. Xa i-bifocal lens isanda kuphuma, ngokwenene yayithathwa njengeVangeli ye-myopia + i-presbyopia, ukuphelisa inkathazo yokukhetha rhoqo kunye nokunxiba, kodwa njengoko abantu basebenzisa, kufunyenwe ukuba iintsilelo ze-bifocal lens nazo zininzi.
