I believe, to many people, bifocal eyeglasses must be an unfamiliar name. Maybe glasses wearers know something about this new kind of eyeglasses. Bifocal eyeglasses play an indispensable role in the daily life of those people who are both troubled with near-sighted and far-sighted problems. To them, a single pair of traditional eyeglasses can not totally solve their problems. They don’t want to take two pairs of eyeglasses with them no matter where they go, especially when they have to go out to do their work. A pair of bifocal eyeglasses seems to be such a useful device. I plan to buy a pair of bifocal eyeglasses for my father because I notice that he is becoming far-sighted with the increasing age. He wears myopia glasses for many years and now this newly-emerged problem is really getting on his nerves. He can not find enough time to see optician for advice and has to buy two kinds of eyeglasses.
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