Have you started to have difficulty when reading fine print? If you're close to middle-age, you might have presbyopia. But having presbyopia when you already wear glasses for distance vision doesn't mean you now need multiple pairs of glasses. Multifocal lenses, which rectify both near and distant objects, allow you to see well at all times, with one pair of glasses.
Multifocals are a vast improvement on bifocals. Bifocals did correct poor near and far vision, but left everything in between a little blurred. In an effort to rectify this issue, progressive lenses were developed, which provide wearers with and intermediate or transition part of the lens allowing your eyes to focus on distances that are somewhere in the middle. But what creates this effect? Progressive lenses feature a subtle curvature, unlike a bifocal lens, which is harshly divided. For this reason, progressive lenses are also called no-line lenses.
These lenses, although better, can take a small period of time to get used to. Even though the invisible lens curve results in a product that is elegant, the focal areas are relatively small because more lens space is used for the transitional areas.
While these days, multifocal lenses (sometimes called trifocals) are for presbyopia, bifocals are still used to aid children or adolescents who experience eye problems like eye teaming, or being unable to focus while reading, which causes eye strain.
Multifocal lenses work best when they're made to work with your exact and unique needs. When you're ready to get yours, make a point to work with a professional you can trust.
Wearing an incorrect prescription can make you susceptible to headaches, eye strain or even nausea. During middle age, most people cannot dodge presbyopia. But it's good to know that good, multifocal lenses can enrich your vision, and your life.