A lot of people begin to notice problems with close vision during their 40s. This is called presbyopia. Fortunately, this doesn’t mean that those who already have prescription eyeglasses to tend to their problems with nearsightedness need to carry around two pairs of glasses and continually change them. This is all thanks to multifocal lenses, which correct both problems, ensuring that you always see well.
Multifocals are much better than bifocals. Bifocals corrected poor near and far vision, but often things in between were blurry. To rectify this issue, progressive lenses were developed. These give you a transition part of the lens which lets you focus on distances that are in the middle. How does this work? Well, progressive lenses are specially curved, unlike a bifocal lens, which is sharply sectioned. Because of this, progressive lenses are also known as no-line lenses. This creates not just clearer vision at all distances, but also nice, easy transitions between the two.
These lenses, although better, may require some time to get used to. Despite the fact that the gentle 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.
Even though multifocal lenses (or trifocals) are for presbyopia, bifocals are often used to treat children or adolescents who have other issues like eye teaming, or being unable to focus properly, which in turn, can lead to headaches.
Even though it may seem like a quick fix, it’s best to steer clear of pharmacy bifocals. Many of these ”ready-made” glasses have the same prescription in both lenses, which will not help a lot of people.
Having a wrong prescription 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.