How Bifocal Contact Lenses Can Solve Your Vision Impairment Problem
By Emanuele
Contact lenses aren't just for the main types of vision impairment such as long sightedness or short sightedness, they are also available for when the wearer need help with seeing things that are both close at hand and far away. Optometrists know this condition as presbyopia. With this condition you need two types of visual help this is accomplished by having, in effect two different types in the same single set of contact lenses.
Some achieve this by having a direct separation between the two different components. This is a very simple approach to the problem and is preferred by many as it gives a clear separation of the two types of visual correction. The advantage of this is that there is no indistinct part of the lens. You are either looking through the shortsighted part, or the long-sighted part. The disadvantage of this is that there is no transition between the two, the wearer is looking either through one or the other.
The second kind of bifocal are lenses that do not have a clear line of separation between the two types, and rather a progressive changing of the prescriptive powers of the from close vision to far vision assistance. Some wearers find this preferable to standard bifocal because there is a more natural progression between the different characteristic of the two sections of the lenses.
There are a wide variety of Bifocal available. Soft lenses and rigid gas permeable can both be ordered with a standard bifocal prescription. A lot of people find the soft lenses are more comfortable to wear and not so hard on the eyes, especially when wearing all day, at the office for example. And many wearers prefer then for this reason.
The new gas permeable bifocal lenses also known as RGP or rigid gas permeable lenses are much more comfortable than
