also: えんきんりょうようめがね
noun
bifocal glasses; bifocals
Eyeglasses with lenses that have two different optical powers, typically for distance and near vision. Common term in optometry and daily life.
See also: 二重焦点
父は遠近両用メガネをかけている。
My father wears bifocal glasses.
遠近両用
Bifocal glasses are convenient for seeing both far and near.