While soft contact lenses are most common, another lesser-known brand of contact lens materials exists: rigid gas permeable (RGP) contact lenses, also called oxygen permeable lenses.
In truth, hard lenses involve more modern technology than soft lenses, and they are longer-lasting, are often more effective in improving vision, and provide better durability. Additionally they may also be cheaper in the long term than soft lenses. Of course, its advised to first consult with an eye doctor to decide if GPs fit your lifestyle. Our optometry practice can help you determine whether hard lenses are right for you.
Because an RGP is made of stiff material, it retains its form well when you blink, which can allow for clearer vision than the average soft lens. Furthermore RGPs are extremely durable. Although they will break if stepped on, they don’t easily rip like soft lenses. Also, because they're made of substances that don't include water, proteins or lipids from your tears don’t adhere to RGPs as readily as they will to soft lenses. Those of you who are extra fussy about vision quality will most likely choose GPs.
One of the inconveniences of hard lenses is that they need to be worn consistently to reach maximum comfort. Further, some people report “spectacle blur” with GPs, which is when eyesight is unclear when contact lenses are taken out even while still wearing glasses. Although the effect is not permanent, it can necessitate constant GP wear.
When checking out RGP lenses, make sure to first ask your eye care practitioner to determine if you definitely are a candidate. You never know…hard lenses could be the right match for you!