Gas Permeable Contact Lenses
Gas permeable lenses are rigid lenses (RGPs) that incorporate silicone material to allow oxygen to pass through the lens to the eye. They are comfortable, long lasting, and more affordable in the long run than most other types of contact lenses.
What are gas permeable contact lenses?
These lenses are custom made for each person who wears them; the lenses match the exact shape of the cornea and center perfectly on the eye, providing crisp vision.
Why are gas permeable contact lenses used?
Although many contact lens wearers still prefer soft contact lenses (due to the adaption period of gas permeable lenses), gas permeable lenses are still worn by a significant percentage of contact wearers, including people who fall into any of these categories:
Individuals who have presbyopia
People with astigmatism (for whom soft lenses cannot produce sharp vision)
People with keratoconus
People who have to wear contact lenses after laser eye surgery
Benefits of gas permeable contact lenses
Gas permeable lenses provide significant benefits over other types of contact lenses:
RGP lenses retain their shape when you blink, which translates to crisper vision.
RGP lenses are more durable than most other contact lenses and will not tear easily (like soft lenses).
RGP lenses will not accumulate as much buildup from cleaning solutions and tears.
RGP lenses are long lasting.
RGP lenses are custom made to fit each person's eyes.
Problems associated with gas permeable contact lenses
With all of the benefits of gas permeable lenses the question becomes, why doesn't everybody wear them? One of the drawbacks of gas permeable lenses is that they require an adaptation period before they become comfortable to wear. Most people end up choosing soft contact lenses because they are instantly comfortable to wear.
To discover which type of contact lens is best for your vision needs, schedule an appointment with your optometrist Dr. Mark Chung today.