If you're middled-aged and having some difficulty reading books and newspapers, you might have developed presbyopia, a common age-related condition that makes it difficult to focus on close objects. Fortunately, this doesn't mean that people who already wear prescription eyeglasses for nearsightedness need to own two pairs of glasses. This is because of multifocal lenses, which correct both problems, ensuring that you always see well.
Before mulifocals, bifocals were widely prescribed, but they have a significant disadvantage; even though they help you to focus on both near and distant objects, everything else is blurred. In an effort to correct this issue, progressive lenses were developed, which provide wearers with and intermediate or transition region that allows you focus on distances that are in the middle. Let's explain how this works. Progressive lenses are specially curved, unlike a bifocal lens, which is sharply sectioned. Because of this, progressive lenses are also known as no-line lenses. This provides not just better vision at all distances, but also nice, easy transitions between the two.
However, it can take some time to get used to these lenses. Despite the fact that the subtle transition of progressive lenses results in a product that is aesthetically pleasing, the focal areas are relatively 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.
Although it may appear to be an easy solution, avoid buying drug store bifocals. Most of these types of glasses have the same prescription in both lenses, which will not help a lot of people.
Glasses that aren't properly customized to you can lead to eye strain, discomfort and even migraines. Presbyopia affects the majority of us by a certain age, but it doesn't have to be inconvenient. A good pair of multifocals can make a world of difference.