If you are around 40 and starting to observe some difficulty reading books and newspapers, you may have developed presbyopia, a common age-related condition that prevents you from clearly seeing near objects. But developing presbyopia when you already need glasses for near sightedness doesn’t mean you need to start switching between multiple pairs of glasses. Multifocal lenses let you see clearly always, tending to your presbyopia and myopia with just one pair of glasses.
Multifocals are a vast improvement on bifocals. Bifocals corrected poor near and far vision, but often things in between were blurry. In an effort to create something better, progressive lenses were made. These offer and intermediate or transition region which lets your eyes to focus on distances that are somewhere in the middle. Progressive or no-line lenses are a type of multifocal lens that have a subtly curved lens surface rather than an obvious and harsh line distinguishing the two parts of the lens. This provides not just better vision at all distances, but also nice, comfortable transitions between the two.
But, it can take a bit of time to adjust to these lenses. Despite the fact that the invisible transition of progressive lenses is more aesthetically pleasing, the lens’s areas of focus are relatively small, so that there’s also room for transitional areas.
Even though these progressive lenses (or trifocals) are for presbyopia, bifocals are often used to treat school-aged children and teens who have other issues such as eye teaming, or being unable to focus properly, which causes eye strain.
When being fitted for multifocal lenses, check that it’s with an eye care professional you trust. Multifocal lenses work best when they’re customized to your unique eyes, needs and line of vision.
A badly fitted pair of glasses can lead to headaches, eye strain or even nausea. Unfortunately, presbyopia is just a part of aging. But keep in mind that multifocal lenses can make all the difference.