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Home » Eyeglasses & Contacts » Contact Lenses » 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 that 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 which 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 with a 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 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.

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 if not more comfortable than 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.

To Our Valued Patients:

As an essential business, Kennedy Vision Health Center remains committed to patient and employee safety as we navigate through the current healthcare crisis. We are going to see patients again beginning May 4th.  We care deeply about patient health and have implemented several infection prevention measures to ensure the highest level of safety when you visit our clinic.  Following guidance from  the MN Dept. of Labor, MN Dept. of Health, CDC, and the American Optometric Association we are keeping a very controlled and safe environment for our patients and employees.

For patients being seen in our clinic, the CDC is now recommending that all staff, patients and visitors cover their faces in health care facilities. To help reduce the spread of COVID-19, we are requiring patients to bring and wear a face covering (such as protective mask or cloth covering) to any upcoming appointments.

Masks or cloth coverings must be worn over your mouth and nose for the duration of your appointment. Members of your care team will also wear masks to help reduce the spread of COVID-19. If you do not have access to a face covering, the CDC website has guidelines for making no-sew, cloth face coverings. You can also use a scarf or bandana. Additionally, masks can be purchased from many local and online retailers.

We are requiring an appointment to enter the office.  Appointments will be made for eye exams, glasses, and contact lens pickups.  If you do not have an appointment please call before entering so we can make sure we do not have too many people in the office.  Once entering please use the hand sanitizer that is provided in the foyer and wait to approach the front desk until the receptionist is ready.  All people entering the building must have their temperature checked.  If your temperature is above 100.4, it will be rechecked by a different device, and if still high you will need to reschedule.

We continue to ask that you do not bring any unnecessary people with you to your appointment, with the exception of a guardian with a child or assistance with mobility.  Also, please follow the 6 feet social distancing guidelines as much as possible throughout the office.

Rest assured that every surface you come into contact with has been sanitized prior to the arrival of each and every patient entering our practice, and it will be cleaned again as you exit each area. The team will be frequently washing their hands between interactions as per our usual protocol, and you’ll also see hand sanitizer throughout the practice for your use, as well.

If you’re  wanting to purchase glasses, there is a similar protocol in place to ensure a safe interaction with cleaning of frames and minimal contact with our optical team. Please follow their direction if eyewear is needed.

Kennedy Vision Health Center is also offering telemedicine visits which can be completed from the comfort of your home. To schedule a telemedicine visit please contact our office at 763-545-8850 and one of our team members will be happy to schedule your visit.

If you have any questions or concerns, please don’t hesitate to call us. On Monday May 4th we will begin regular office hours at both locations.

We appreciate your efforts to help protect yourself, our care teams and our entire community.