Presbyopia, or far-sightedness, is a common condition that usually begins to affect those over the age of 40. It's one of the down sides of aging, but it's good to know that developing presbyopia when you already wear glasses for near sightedness doesn't mean you now need multiple pairs of specs. Multifocal lenses let you have good vision always, tending to your presbyopia and myopia at once.
Multifocals are much better than bifocals. Bifocals did correct problems with both near and far vision, but left middle vision a little blurred. In an effort to correct this issue, progressive lenses were developed. These give you a transition part of the lens 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 made with a subtle curvature across the lens, instead of an obvious and harsh line separating both areas of the lens. This makes for not just clearer vision at near and far distances, but also good transitions between the two.
However, you might take some time to get used to these lenses. Even though the subtle transition of progressive lenses results in a product that is aesthetically pleasing, the lens's areas of focus are small, so that there's also room for transitional areas.
Bifocals still have their uses though; they are helpful for children and teenagers who experience eye strain, which is the result of a difficulty focusing while reading.
When the time comes to get fitted for multifocal lenses, check that it's with an eye care professional you feel comfortable with. Multifocal lenses are most beneficial when properly fitted to your eyes, needs and line of vision.
Being fitted with an incorrect prescription can leave you with eye strain, discomfort and nausea. Unfortunately, presbyopia is a reality of our bodies' aging process. But don't forget; multifocal lenses can make all the difference.