Gas Permeable (GP) Contact Lenses

Gas Permeable (GP) Contact Lenses

Gas-Permeable (GP) or Rigid Gas Permeable (RGP) contact lenses are an alternative to soft contact lenses and are made from a hard, oxygen-permeable material. GP lenses are currently less popular than soft lenses but offer a number of advantages and are continuing to improve as research and technology advance.

GP contacts are made of a firm plastic material that allows the passage of oxygen through the lens to your cornea and the front surface of your eye - essentially allowing your eye to “breathe”. This increases comfort, health, and safety during contact lens wear.

Benefits of GP or RGP Contact Lenses

Because of the strong material and the ability to diffuse oxygen, GP lenses offer a number of advantages over soft contact lenses.

Health and Hygiene Benefits

Unlike soft lenses, GPs don’t contain water which makes them less likely to attract and breed bacteria that can cause eye infections. Further protein deposits won’t build up on the lens, keeping them cleaner and healthier.

Because they are made of strong durable material, GP lenses won’t tear and are easy to clean and disinfect. RGPs maintain their firm shape and will not dehydrate. Further, GPs last longer than soft lenses - when cared for properly, a pair can last a year or more.

Comfort

GP contact lenses are custom-made for each patient based on the eye’s individual curvature, size, corneal shape. Their ability to transmit oxygen reduces eye problems such as dry eyes caused by reduced oxygen that are common in many brands of soft lenses or hard (non-GP) lenses.

GP lenses have a smaller diameter than soft contacts, meaning that they cover less of the surface of your eye. While this may take some time getting used to initially, ultimately many find that they are just as, if not more, comfortable than soft contacts.

Better Vision

Due to the rigid material, GPs have a smooth surface and maintain their shape, moving along with the eye to hold their place. This provides a sharp and stable vision. Further, they do not dehydrate, which is often a cause for reduced vision with other lenses.

Cost

Because they last so long, GPs are much more cost-effective than soft lenses, especially disposable lenses that require a constant supply. Because they are made to order, there is an initial cost investment and they will take up to a week to manufacture if you do need a replacement pair.

GPs for Astigmatism

GP lenses are ideal for individuals with astigmatism that may have been told that they cannot wear soft contacts. Because of the rigid nature of the lens, they hold their shape on the eye allowing for more clear and stable vision correction.

3 locations to serve you

Blink Eyewear operates no fewer than 3 convenient locations across Calgary. Our clinics in Creekside, West Springs, and Crowfoot are all outfitted with experienced optometrists and opticians, the latest optometry instruments, and a wide range of brand frames. Whether you are shopping for a new pair of glasses, getting an eye exam, or treating a severe eye condition, visit any of our 3 clinics for an eye-popping experience.

In addition to our physical stores, we also offer telehealth services so that you can ensure your ocular health from the comfort of your home!

Adapting to GP lenses

One of the downsides of GP contact lenses is that they require an adaptation period, particularly if you are used to soft lenses with a larger diameter. One of the major differences is an experience of “lens awareness” in which you feel the edge of the lens when you blink. It could take up to a few weeks to get used to the lenses but many people report that after this initial period they find that GP lenses are just as comfortable as soft lens varieties.

GP Lenses for Myopia Control and Ortho-K

Research shows that gas permeable lenses might be effective in slowing the progression or worsening of myopia or nearsightedness, particularly in children. They are also used in Orthokeratology (ortho-k), a vision-correcting procedure in which you wear the lenses at night to reshape your cornea for improved vision during the day

Our Contact Lenses

Outstanding vision care across Calgary

Outstanding vision care across Calgary

Blink Eyewear is the largest provider of vision services and care in Calgary, operating no fewer than 3 accessible locations across the region. All of our stores are inventoried with the most sought-after designer and commercial frames and eyewear for all occasions and purposes. 

Home to experienced optometrists and opticians, our stores also offer comprehensive eye exams to individuals of all ages, emergency eye care, and the treatment and management of eye conditions such as glaucoma and macular degeneration.

Your all-in-one source for everything vision related

Blink Eyewear boasts the largest collection of eyewear in Calgary, but our 3 locations are also home to the region’s finest optometrists. Just as you will not find a better store to shop for your eyewear, you will not find a better vision clinic to do your eye exam or treat your eye condition. 

Go ahead and Blink; what you see is really what you get. Call one of our store numbers or fill out the form below to book an appointment.

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