Have you experienced difficulty when reading fine print? If you're close to middle-age, you might have presbyopia. But, this doesn't mean that people who already have prescription eyeglasses to tend to their problems with distance vision are required to carry around two pairs of glasses. Multifocal lenses, which rectify both near and distant objects, help you see well at all distances with one pair of glasses.
Before mulifocals, bifocals were the popular fix, but they have a major shortcoming; while they correct problems with both near and distant objects, middle distance is blurred. In an effort to create something better, progressive lenses were developed. These offer and intermediate or transition part of the lens which lets you focus on distances that are in the middle. But what creates this effect? Well, progressive lenses feature a gradual curvature, 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 smooth, comfortable transitions in between.
However, it can take some time to get used to these lenses. Despite the fact that the gentle lens curve results in a product that is elegant, the lens's areas of focus are relatively small, so that there's also room for transitional areas.
Even though multifocal lenses (or trifocals) are for presbyopia, bifocals are often used to aid school-aged children and teens with eye problems like eye teaming, or being unable to focus while reading, which in turn, can lead to headaches.
Even though it may appear to be an easy solution, avoid purchasing pharmacy bifocals. Many of these types of glasses have the same prescription in both lenses, which will not help a lot of people.
If your prescription or fit is off you may find yourself suffering from eye strain, discomfort and headaches. At a certain age, most people cannot dodge presbyopia. But it's important to know that good, multifocal lenses can make all the difference.