Gas Permeable Contact Lens for Continuous Wear.

Gas Permeable Contact Lens are contact lenses made from materials that can pass oxygen from the outside of the contact lens, directly to the eye, the oxygen actually passes through the lens and into the eye.

Your eyes need oxygen without it, your eyes become sore, itchy and tired, it's the oxygen flow to your eyes that keeps your eyes feeling fresh.

Gas Permeable Contact Lens for Weekly Replacement.

Gas permeable contact lens are a type of lens that can be worn continuously for a month or for a week, conventional contact lenses are non gas permeable contact lenses and cannot be kept in your eyes without removal for days or weeks at a time, your eyes would become red and sore as they became starved of oxygen.

Gas permeable contact lenses are all made from materials that allow oxygen to flow to your eyes, these materials all have their own brand names but are based on a Silicone Hydrogel, names of these materials include Silicone Hydrogel, HYDRACLEAR, Balafilcon, Lotrafilcon and Aquaform.

Most of the major contact lens manufacturers make gas permeable contacts such as Bausch and Lomb, Ciba Vision, Johnson and Johnson, Coopervision.

Gas permeable contacts products include Purevision, Air Optix Aqua, Acuvue Advance, Purevision Multi-focal, Air Optix for Astigmatism, Acuvue Advance for Astigmatism, Purevision Toric, Air Optix Night and Day, Focus Night and Day, Acuvue Oasys, Air Optix, BIOFINITY, Acuvue Oasys for Astigmatism.

Most of the family of contact lenses are available as oxygen permeable contact lens like Purevision, Air Optix, Focus, Acuvue Advance and Acuvue Oasys.

All eye conditions are available with oxygen permeable contact lens multifocal, varifocal, bifocal, progressives, presbyopia, astigmatism and toric.

Acuvue Advance from Johnson and Johnson are permeable contact lens which use HYDRACLEAR to provide a oxygen absorbing lens in a weekly replacement lens regime, so you don't need to remove your lenses or clean your lenses all week, then after one week, remove your lenses and replace with a new pair.

Acuvue Advance are very smooth lenses ideal for people suffering from dry eyes, with UVA and UVB filters to protect your eyes from sun damage it just goes to show that a permeable contact lens can allow oxygen to flow freely through the contact lens material whilst still blocking the harmful radiation from the sun.