Although soft contacts are more often used, a second, lesser-known kind of contact lens materials exists: rigid gas permeable (RGP) lenses, sometimes called oxygen permeable lenses.
Actually, RGP lenses are a newer technology than soft lenses, and they are longer-lasting, offer greater vision quality, and offer improved durability and resistance to protein deposits. Additionally GP lenses can also be cheaper in the long run than soft lenses. Certainly, its best to first consult with an eye care practitioner to decide if hard lenses suit your needs. Our optometry practice can help you figure out whether hard lenses are right for you.
Because a GP is composed of stiff material, it retains its form well when you blink, which can afford sharper vision than the typical soft lens. In addition GPs are extremely durable. Though they can break if stepped on, they don’t easily rip like soft lenses. Further, because they consist of materials that don't contain water, proteins and lipids from your tears won't stick to RGPs as readily as they do to soft lenses. People that are especially fussy about quality of vision will probably choose RGPs.
On the downside, RGPs must be worn consistently in order to reach optimum comfort. Additionally, there are some who 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 full-time GP wear.
When thinking about RGP lenses, make sure to first ask your eye doctor to determine if you really are a suitable candidate. Who knows…hard lenses could be the right solution for you!