Are you over 40 and struggling to read small print? You might have presbyopia, a common condition affecting those who are approaching middle age. But developing presbyopia when you already need glasses for near sightedness doesn't mean you now need multiple pairs of glasses. This is because of multifocal lenses, which help you with both problems, ensuring that you always see well.
Before mulifocals, bifocals were the popular fix, but they have a major shortcoming; while they help you to focus on both near and distant objects, middle distance is blurred. To create something better, progressive lenses were developed. These provide wearers with a transition region that allows you focus on distances that are in the middle. Progressive or no-line lenses are a type of multifocal lens that have a subtle curvature across the lens surface rather than a sharp line separating the two areas of the lens.
But, it can take some time to get used to these lenses. Even though 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 still employed to treat children or adolescents who experience issues such as eye teaming, or being unable to focus properly, which causes eye strain.
When the time comes to get fitted for multifocal lenses, it's crucial that you're attended to by an eye care professional you feel comfortable with. Multifocal lenses work best when properly fitted to your eyes, needs and line of vision.
If your prescription or fit is off you may find yourself suffering from eye strain, discomfort and even migraines. Unfortunately, presbyopia is a reality of getting older. But don't forget; multifocal lenses can make all the difference.