subject: Who Should Wear Trifocals? [print this page] Trifocals are combination of three pair of glasses, namely, for near, middle and far distance vision. They are also called lined glasses, for those vision areas are marked by lines. However, for those who can not stand the discomfort of "being lined", they can choose progressive glasses, also called multi-focal glasses. No lines can be found in progressive glasses which will provide great comfort in vision and clarity.
