Are you having trouble reading small print? If you're close to middle-age, you might have presbyopia. It's comforting to know that developing presbyopia when you already wear glasses for distance vision doesn't mean you need to start switching between two pairs of specs. Multifocal lenses will allow you to have good vision all the time, correcting your presbyopia and myopia at once.
Multifocals are far superior to bifocals. Bifocals do fix poor near and far vision, but often things in between were blurry. In an effort to create something more helpful, progressive lenses were invented. These offer a transition part of the lens allowing you focus on distances that are somewhere in the middle. But what creates this effect? Well, progressive lenses feature a gradual curvature, unlike a bifocal lens, which is sharply divided. Because of this, progressive lenses are also called no-line lenses. This makes for not only clearer vision at all distances, but also good transitions in between.
However, you may require some time to adjust to these lenses. While the invisible lens curve results in a product that is aesthetically pleasing, the focal areas are quite small because more lens space is used for the transitional areas.
Even though these progressive lenses (or trifocals) are for presbyopia, bifocals are still employed to aid children or adolescents who suffer from eye problems like eye teaming, or being unable to focus while reading, which in turn, can lead to eye strain.
Multifocal lenses work best when they're customized to your exact and unique needs. So when it's time to get yours, enlist the services of a professional you feel comfortable with.
Glasses that aren't properly customized to you can lead to headaches, eye strain or even nausea. During middle age, most of us will not be able to avoid presbyopia. But it's important to know that the right lenses can make all the difference.