Bifocal and Vrifocal As I am getting old, now 52 years old, I gets a difficulty to look at something very close to me. I am also short-sighted, so I usually wear a pair of glasses for short -sighted a

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Toru Higaki

Bifocal and Vrifocal As I am getting old, now 52 years old, I gets a difficulty to look at something very close to me. I am also short-sighted, so I usually wear a pair of glasses for short -sighted and carry the other a pair of glasses for long-sighted in my bag. I am planing to buy a special glasses which have two focuses in a lens. I don't have to change the glasses when I read books and watch movies if I get it. By the way, I found two words which describe the above glasses in English when I am writing this notebook, which are bifocal and varifocal glasses. I had checked them in my English-Japanese dictionary, but there is nothing difference between them. I would really appreciate it if someone tells me whether there are any differences? Just for Japanese-learners, there is only one word to describe this type of special glasses: "en kin ryouyou", "えんきんりょうよう" or "遠近両用". Thanks.

Corrections · 3

Bifocal and Vrifocal

As I am getting old, now 52 years old, it is getting difficult to look at something that is very close to me. I am also short-sighted, so I usually wear a pair of glasses for my short-sightedness and carry the other a pair of glasses for long-sightedness in my bag. I am planing to buy a special glasses which have two focuses in the lenses. I won't have to change the glasses when I read books and watch movies if I get them.
By the way, I found two words which describe the above glasses in English as I am writing this notebook, which are bifocal and varifocal glasses. I had checked them in my English-Japanese dictionary, but there is nothing difference between them.

I would really appreciate it if someone tells me whether there are any differences?

Just for Japanese-learners, there is only one word to describe this type of special glasses:
"en kin ryouyou", "えんきんりょうよう" or "遠近両用".

Thanks.

Hello, I'm not sure if this will be the best explanation, but here it goes.

Bifocals have a visible line (like a semi-circle) in the bottom and that is meant to provide both a lens for near-sightedness and one for far-sightedness. The varifocals (often called progressive lenses) blend them two in the middle and do not have the semicircle line at the bottom. Hope that helps! If not, look up a picture of them on google and you will be able to notice the differences and understand better how the lenses are meant to work. :)

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