Are you experiencing trouble when reading fine print? If you're close to middle-age, you might have presbyopia. If you're already a glasses wearer, and are later on diagnosed with presbyopia, you don't have to carry a separate pair of reading glasses. Multifocal lenses, which correct both myopia and presbyopia, allow you to see well at all times, with one pair of glasses.
Before mulifocals, bifocals were the obvious solution, but they were far from perfect; while they help you to focus on both near and distant objects, middle distance is blurred. To create a better product, progressive lenses were invented. These provide wearers with a transition part of the lens which lets your eyes to focus on distances that are in the middle. But what creates this effect? Progressive lenses are expertly curved, unlike a bifocal lens, which is sharply divided. For this reason, progressive lenses are also known as no-line lenses. This creates not just clearer vision at all distances, but also smooth, easy transitions between the two.
Progressive lenses may take a small period of time to get used to. While the invisible transition of progressive lenses results in a product that is elegant, the lens's areas of focus are relatively small, so they they're all able to fit.
Even though these progressive lenses (or trifocals) are for presbyopia, bifocals are often used to help young patients with issues like eye teaming, or being unable to focus properly, which causes eye strain.
Although it may appear to be an easy solution, it's best to steer clear of drug store bifocals. Most of these ''ready-made'' glasses have the same prescription in both lenses, which will not help a lot of people.
Being fitted with a wrong prescription can make you susceptible to eye strain, discomfort and headaches. At a certain age, most people cannot dodge presbyopia. But it's comforting to know that good, multifocal lenses can make all the difference.