Although soft contact lenses are most often used, another less familiar kind of contact lens materials exists: rigid gas permeable (RGP) contact lenses, also called oxygen permeable lenses.
In truth, GP lenses involve more modern technology than soft lenses, which last longer, can be more effective in improving vision, and offer improved durability and deposit resistance. Further GP lenses can also be cheaper in the long term than soft lenses. Of course, its advised to first consult with your optometrist to decide whether hard lenses suit your lifestyle. Our optometry practice can assist you in ascertaining if RGP lenses are suitable for you.
Since a GP is composed of inflexible material, it maintains its shape well when you blink, which can provide sharper vision than the typical soft lens. Furthermore RGPs are extremely long-lasting. Although they will break if stepped on, they don’t tear easily like soft lenses. Also, since they're composed of materials that don't contain water, proteins and lipids from your tears don’t stick to GPs as easily as they will to soft lenses. Those of you who are extra particular about vision quality will probably choose RGPs.
Rigid lenses are also an often preferred option for those with certain conditions such as astigmatism, presbyopia or keratoconus, where standard contacts may not produce the desired visual acuity. RGPs are also preferable for those who need contact lenses after refractive surgery.
When thinking about hard lenses, be sure to first speak to your eye care practitioner to verify if you definitely are a suitable candidate. You never know…hard lenses could be the right answer for you!