Rigid gas permeable contacts (RGP) is another term for gas permeable contact lens. Hard contact lenses are of the function as a soft contact lens. RGPs were introduced in the early 70s by way of silicone rather than polymers. The eyes need a lot of oxygen flow to the cornea, that is why gas permeable contacts is apt than the polycarbon kind. Silicone on the other hand is oxygen permeable, resulting in greater comfort and better eye health.
Gas permeable contact lens is harder to get used to compared to soft contact lens. If you think about it, most of the benefits outweigh the consequences. A gas permeable contact lens’ initial benefit is retains its shape whenever a person blinks. Over soft contact lens, it tends to provide a crisper vision. A gas permeable contact lens is tougher than a soft contact lens because it only breaks when someone steps over it while the latter tears easily.
Additionally, gas permeable contact lens is they are made of materials that doesn’t contain water so proteins and lipids that comes from tears will not accumulate on the lenses. Compared to soft contact lens, the odds of suffering from eye irritations when using a hard lens is lower. The best benefit of gas permeable contacts is that they allow oxygen to pass through the corneas. This avoids inflammation of the cornea and other serious eye complications.
People with different afflictions prefer using gas permeable contact lenses. Astigmatism, presbyopia, and keratoconus are among those ailments. If a person is suffering from astigmatism, it’s preferable to use it because it conforms to their desired sharpness. Others who are afflicted with presbyopia prefers gas permeable contact lens because of its multi-focal designs. Because this lenses prevent extreme visual distortion, people with keratoconus opt for them. Since people with dry eyes blink less, a gas permeable contact lens is recommended. This is the reason why gas permeable contact lens is utilized by a lot of computer users.
However, a gas permeable contact lens needs more effort for maintenance because they last longer than soft contact lens. Just a final note, you need to go to an eye care specialist first before even buying a contact lens.