While you may be most familiar with soft contact lenses, another less familiar kind of contact lens materials exists: gas permeable (GP) lenses, sometimes referred to oxygen permeable lenses.
In reality, hard lenses are a more modern technology than soft contacts, and they are longer-lasting, offer greater vision quality, and provide enhanced deposit resistance. Additionally RGP lenses can also be less expensive in the long term than soft lenses. Of course, its best to first discuss with an eye care practitioner to decide whether GPs fit your needs. Our optometry office can help you figure out if RGP lenses are right for you.
Since a GP is constructed from inflexible material, it does a great job of maintaining its form when you blink, which can afford sharper vision than the typical soft lens. Additionally GPs are extremely long-lasting. Although they can break if stepped on, they don’t tear easily like soft lenses. Further, because they're made of materials that don't include water, proteins or lipids from your tears won't adhere to RGPs as readily as they do to soft lenses. People that are extra fussy about quality of vision will probably choose RGPs.
RGPs are also sometimes preferred for people that have special considerations such as astigmatism, presbyopia or keratoconus, where soft lenses may not fit properly or offer enough variety. RGPs are also suitable for those who need contact lenses after refractive surgery.
If you're thinking about GP lenses, be sure to first ask your eye doctor to determine if you definitely are a candidate. Who knows…hard lenses might be the right match for you!