Are you experiencing trouble reading small 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 need to carry a separate pair of reading glasses. This is all thanks to multifocal lenses, which help you with both problems, making sure you always see well.
Before mulifocals, bifocals were widely prescribed, but they weren't all that great; while they correct problems with both near and distant objects, middle distance is blurred. To create something more helpful, progressive lenses were developed, which provide wearers with a transition part of the lens allowing your eyes to focus on distances that are in the middle. Let's explain how this works. Well, progressive lenses are specially curved, unlike a bifocal lens, which is harshly 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 smooth, easy transitions in between.
But, you may take a bit of time to adjust to no-line lenses. Even though the subtle transition of progressive lenses results in a product that is elegant, the focal areas are quite small because more lens space is used for the transitional areas.
Bifocals are still used though; they are helpful for kids and teens who have a hard time focusing when reading.
It's also important to get professionally fitted, and avoid drugstore bifocals. A lot of these types of glasses have the same prescription in both lenses, which will not help a lot of people.
A badly fitted pair of glasses can lead 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 enrich your vision, and your life.