How do bifocals help us today?

Answer 1

Bi means two, focal means to focus, so Bifocal glasses help you with both short sight and long sight.

Answer 2

Bi means two, focal means to focus, so Bifocal glasses help you with both short sight and long sight.

Answer 3

Bifocal is a compound word, "bi" meaning two, and focal referring to the focal length. Bifocal glasses have two focal lengths. One focal length allows the wearer to focus at distant objects. The other focal length allows the wearer to focus on closer objects, such as a newspaper or computer screen. When we're younger a normal eye has the ability to change it's focal length. When everything is "young" and working properly, we can alter the shape of the clear lense inside our eye thereby changing the focal length whenever we want to look at something near or far. As we get older, we loose that ability. Somewhere around 45, most of us start to have trouble focusing on closer objects. That's because the lense INSIDE our eye can no longer change shape on demand the way it did when we were younger. Bifocal glasses are a way for your eye doctor to provide you with a tool to help you see at a distance and up close.

Answer 4

Bifocal reading glasses are glasses that feature two lenses, allowing one to see objects that are both near and far from the eye clearly. Thus, with bifocal reading glasses, one need not constantly switch between two pairs of glasses (one for reading, and one for looking at other, more distant objects).

Answer 5

Bifocals have two distinct and separate optical powers. This allows for the user to be able to focus both far away, and up close. This allows for individuals with multiple eyesight issues to use the same pair of eye wear to correct vision in multiple fields.

Answer 6

Bi means two, focal means to focus, so Bifocal glasses help you with both short sight and long sight.

Answer 7

Bifocal lenses are eye glasses with two distinct optical powers, they are used for short and long vision, e.g short vision, one might be reading, long vision, one might be driving.