While soft contact lenses are more common, another lesser-known kind of contact lens materials exists: rigid gas permeable (RGP) contact lenses, also known as oxygen permeable lenses.
In reality, hard lenses are a more modern technology than soft contacts, and they last longer, offer finer vision quality, and provide better durability. Additionally they may also be less expensive in the long run than soft lenses. Certainly, its best to first consult with your optometrist to decide whether RGPs suit your lifestyle. Our optometry office can assist you in determining if GP lenses are suitable for you.
Because a GP is made of stiff material, it does a good job of retaining its form when you blink, which tends to afford crisper vision than the typical soft lens. Furthermore RGPs are extremely long-lasting. Although they can crack if stepped on, they don’t easily rip like soft lenses. Also, because they're made of substances that don't contain water, proteins and lipids from your tears won't stick to RGPs as easily as they do to soft lenses. Those of you who are extra particular about quality of vision will most likely choose GPs.
On the downside, GPs must be worn consistently in order to reach optimum comfort. Further, some people experience “spectacle blur” with RGPs, which is when vision is unclear when the lenses are removed even while wearing glasses. Though the effect is not permanent, it can necessitate constant GP wear.
If you are thinking about hard lenses, be sure to first speak to your eye doctor to determine if you really are a candidate. Who knows…hard lenses might be the perfect answer for you!