Presbyopia, or far-sightedness, is a common condition that usually starts to affect people over the age of 40. But, this doesn't mean that individuals who already have glasses for nearsightedness need to own two pairs of glasses and constantly change them. Multifocal lenses help you have good vision always, correcting both issues with just one pair of glasses.
In the past, bifocals were the popular fix, but they have a major flaw; even though they correct problems with both near and distant objects, middle distance is blurred. To create something more helpful, progressive lenses were made, which provide wearers with and intermediate or transition region which lets you focus on distances that are in the middle. 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.
Progressive lenses, although better, can take some time to get used to. While the invisible lens curve is more aesthetically pleasing, the lens's areas of focus are relatively small, because they all need to fit.
Bifocals aren't entirely dated though; they are helpful for children and teenagers who have a hard time focusing when reading.
When the time comes to get fitted for multifocal lenses, make sure it's with an eye care professional you trust. Multifocal lenses work best when they're customized to your eyes, needs and line of vision.
Glasses that aren't properly customized to you can lead to eye strain, discomfort and even migraines. Unfortunately, presbyopia is just a part of aging. But don't forget; multifocal lenses can make all the difference.