Presbyopia, or far-sightedness, is a common condition that often starts to develop in people who are 40 or older. But, this doesn't mean that people who already wear glasses for distance vision are required to carry around two pairs of glasses. This is because of multifocal lenses, which take care of both problems, ensuring that you always see well.
Multifocals are a vast improvement on bifocals. Bifocals did correct poor near and far vision, but left middle vision a little blurred. To create something more helpful, progressive lenses were invented. These offer and intermediate or transition part of the lens that allows your eyes to focus on everything between things like the newspaper and far objects like road signs. Let's explain how this works. Progressive lenses are specially curved, unlike a bifocal lens, which is sharply divided. For this reason, progressive lenses are also called no-line lenses. This provides not just better vision at near and far distances, but also good transitions between the two.
These lenses can require a small period of time to adjust to. Despite the fact that the invisible transition of progressive lenses results in a product that is elegant, the lens's areas of focus are relatively small, because they all need to fit.
Even though multifocal lenses (or trifocals) are for presbyopia, bifocals are often employed to aid young patients with eye problems such as eye teaming, or being unable to focus while reading, which causes headaches.
Multifocal lenses work best when they're customized to your exact and unique requirements. When you're ready to get fitted, make a point to work with a professional you can trust.
Having a wrong prescription can leave you with headaches, eye strain or even nausea. At a certain age, most of us cannot avoid presbyopia. But it's comforting to know that the right lenses can make all the difference.