Many people begin to notice problems with reading small print and seeing close objects during their 40s. This condition is known as presbyopia. Fortunately, this doesn't mean that people who already have prescription eyeglasses to tend to their problems with distance vision need to own two pairs of glasses and continually change them. This is all thanks to multifocal lenses, which correct both problems, making sure you always see clearly.
Multifocals are far superior to bifocals. Bifocals corrected problems with both near and far vision, but often things in between were blurry. In an effort to correct this issue, progressive lenses were invented, which provide wearers with a transition part of the lens allowing you focus on distances that are in the middle. Progressive lenses, which are also known as no-line lenses, are a type of multifocal lens made with a subtly curved lens, instead of an obvious and harsh line separating the two parts of the lens. This makes for not just better vision at all distances, but also smooth, comfortable transitions between the two.
But, you may need a bit of time to adjust to no-line lenses. While the invisible lens curve results in a product that is aesthetically pleasing, the focal areas are relatively small because more lens space is used for the transitional areas.
While these days, these progressive lenses (or trifocals) are for presbyopia, bifocals are often used to treat children or adolescents who experience eye problems like eye teaming, or being unable to focus properly, which in turn, can lead to eye strain.
When you go get fitted for multifocal lenses, make sure it's with an eye care professional you feel comfortable with. Multifocal lenses work best when properly fitted to your eyes, prescription and line of vision.
Having an incorrect prescription can lead to headaches, eye strain or even nausea. Unfortunately, presbyopia is just a part of our bodies' aging process. But don't forget; multifocal lenses can make all the difference.