Are you over 40 and finding it more of a challenge to read small print? You might have presbyopia, a common condition affecting those reaching middle age. If you're already a glasses wearer, and are later on diagnosed with presbyopia, you won't need to start carrying and switching between two pairs of glasses. Multifocal lenses, which rectify both near and distant objects, allow you to see well at all distances with one pair of glasses.
Multifocals are a vast improvement on bifocals. Bifocals corrected poor near and far vision, but left middle vision a little blurred. In an effort to rectify this problem, progressive lenses were developed. These give you and intermediate or transition part of the lens which lets your eyes to focus on the area between near and far distances. But what creates this effect? Well, progressive lenses are expertly curved, unlike a bifocal lens, which is sharply sectioned. Because of this, progressive lenses are also called no-line lenses.
However, you may require a bit of time to get used to these lenses. While the subtle transition of progressive lenses is more aesthetically pleasing, the lens's areas of focus are small, so that there's also room for transitional areas.
Even though multifocal lenses (sometimes called trifocals) are for presbyopia, bifocals are still employed to treat school-aged children and teens with eye problems such as eye teaming, or being unable to focus while reading, which causes eye strain.
When you go get fitted for multifocal lenses, make sure it's with an eye care professional you trust. Multifocal lenses are most beneficial when properly fitted to your unique eyes, prescription and line of vision.
A badly fitted pair of glasses can lead to headaches, eye strain or even nausea. At a certain age, most people will not be able to dodge presbyopia. But it's good to know that the right lenses can make it a lot easier.