Have you started to have trouble reading small print? If you're close to middle-age, you might have presbyopia. If you already wear glasses for distance vision, and are later on diagnosed with presbyopia, you won't need to carry a separate pair of reading glasses. This is because of multifocal lenses, which can take care of both problems, ensuring that you always see clearly.
Before mulifocals, bifocals were the popular fix, but they have a significant disadvantage; even though they correct problems with both near and distant objects, middle distance is blurred. To create something better, progressive lenses were invented. These provide wearers with a transition part of the lens which lets your eyes to focus on distances that are somewhere in the middle. How does this work? Progressive lenses feature a subtle curvature, unlike a bifocal lens, which is harshly sectioned. For this reason, progressive lenses are also called no-line lenses. This makes for not just better vision at near and far distances, but also good transitions in between.
These lenses may require a small period of time to get used to. Even though the invisible lens curve is more aesthetically pleasing, the lens's areas of focus are small, so that there's also room for transitional areas.
While these days, multifocal lenses (sometimes called trifocals) are for presbyopia, bifocals are still used to help children or adolescents with issues like eye teaming, or being unable to focus properly, which in turn, can lead to eye strain.
Multifocal lenses work best when they're made to work with your exact and unique requirements. When you're ready to get fitted, enlist the services of a professional you feel comfortable with.
A badly fitted pair of glasses can lead to eye strain, discomfort and even migraines. Unfortunately, presbyopia is a reality of our bodies' aging process. But keep in mind that multifocal lenses can make all the difference.