subject: Have You Heard Of Rgp Lenses? [print this page] As for contacts wearers, Rigid Gas Permeable (RGP) lenses are strange for them. In fact, these lenses are one of the latest contact products that can be found in the market. Their foremost important characteristic is gas permeability.
In fact, these contacts are totally different from other lenses, traditional soft and hard lenses. People may ask why they are different. Here is the explanation.
PMMA is the major ingredient of traditional hard lenses, so these lenses are very hard and uncomfortable to wear. On the contrary, RGP are made of special materials that can make eyes comfortable. WhyBecause RGP can let sufficient oxygen through and eyes will not suffer from problems caused by insufficient oxygen. Also there are many other advantages in RGP, such as they are more flexible and durable than traditional lenses, and their sizes are relatively smaller.
People may ask why they should choose RGP. There are some points about these lenses, which can give them a satisfying answer.
The foremost important point, as above mentioned, is these lenses are very durable and the maintenance of these lenses is very easy and convenient.
These lenses can be used for a very long time and wearers can always enjoy perfect vision with them. The last one is wastes will not be so easily left onto these lenses.
Of course, to some extent, there are some defects about these lenses. For example, they are not as comfortable as soft lenses to wear. While using these lenses, people should learn to keep regularity. Much careful maintenance should be kept.
RGP are so nice lenses that many people are almost crazy about them. Sufferers of astigmatism think these lenses can provide them with the best vision accuracy. These lenses can also be good substitutes of bifocals and multifocals. Keratoconus can also be treated with these lenses. In a word, these lenses are very nice, and even those who are nit-picking will choose them.
