Non Prescription Colored Contacts - Bifocal Contact Lenses
For a majority of us, presbyopia is something we have to live with. In definition, presbyopia is the lack of focusing on things in close range. The cause for this, is the lens in our eyes becoming less and less flexible as we grow older. The bad part is, most of us will require some type of corrective lenses, such as contact lenses or glasses and perhaps actually bifocals at some stage in our lives as this condition gets worse.
Up until recently, those who wore bifocals had very limited options when they chose their corrective lenses. In years past, glasses that contained bifocal lenses were basically about the only option available. Through the years, no-line lenses were created, and glasses became a little more attractive. This was a really definitive time for bifocal correction lenses, as they looked a whole lot better than they ever did in the past - eliminating the bulky and unappealing appearance they were well known for.
Nowadays, you can find many various kinds of bifocal contact lenses on the market. They are increasing in popularity, as they give those who wear bifocal glasses a very attractive option to wearing bulky glasses. They're very affordable also - causing them to be a more popular alternative in the world of corrective lenses.
What most may not realize, is the fact that bifocal contacts are much the same to glass lenses in the way they work. With glass lenses, each separate lens offers a range of focus adjustments, one for distance and one more for being close up on something. With bifocal contact lenses, both of the adjustments are included. You will find different manufacturers that produce different types of bifocal contact lenses, meaning that it might take you a bit of research and experimenting to find which kind works the best for you.
Several lenses however, are created with a unique design, known as concentric. Much like concentric circles, you will find two adjustments - one in the middle, the other around the outside. These 2 adjustments in the contact lens are really distinct, with a sharp line between them. Even though they might sound hard to use, the majority of people discover that they're easy to use with a little bit of practice.
One kind of bifocal lens is the aspheric lens, which have a more gradual change of focus. Both power are in the central area of the pupil, and similar to the concentric lens, your eye will instantly adjust to these lenses and choose the focus that's best to use.
The third and possibly best lens for bifocal use is the translating lens. The same as bifocal glass lenses, the near correction is found at the bottom of the lens, and the distance correction is found at the top. These lenses are not able to shift when in the eye, as they are normally made thus they are not able to shift around. This can be great for older people, since these contacts won't move around regardless of what you do.
With regards to bifocal contact lenses, you should always ask your optician what he thinks is best for your eyes. If you meet the right criteria, chances are you'll be prescribed bifocal contact lenses. If you wear bifocal glasses, you may find these contacts to be the perfect alternative. You can get bifocal lenses in extended wear, daily disposable, or even conventional - which is fantastic for anyone who likes plenty of choices. With quite a lot to choose from and a lot to offer - bifocal contact lenses are the ideal alternative for anyone who needs bifocal correction lenses.