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. Call 856-205-4141. 107 West Portal Ave San Francisco, CA. Although both custom soft toric and gas permeable (GP) toric contact lenses could be utilized in this case, M. See full list on executiveeyes. Dry Eye Scleral Lenses 7525 Tidewater Dr, Ste 41, Norfolk, VA 23505. West Linn, OR 97068 Re: K170335 Trade/Device Name: Custom Stable ™ Rigid Gas Permeable Scleral Contact Lens Regulation Number: 21 CFR 886. Donate Now. ABOUT US. , Radiant Energy and the Eye, MacMillan, New York, 1980, p. Available as spheres and back surface toric design. 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. Whereas steps 1 and 2 are common to all lenses including PMMA and soft lenses, step 3 is not well understood by patients and practitioners alike. Make an appointment at Bethesda Vision Care. Benefits of GP or RGP 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. Rigid gas permeable contact lens correction of aphakia following congenital cataract removal during infancy. Rigid gas-permeable (RGP) lenses, or gas-permeable (GP) lenses, are made of a hard, oxygen-permeable material that allows the eyes to breathe. 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 lenses are durable and long-lasting. It can take up to four weeks to get used to wearing gas permeable lenses. A comparison of synergeyes versus traditional rigid gas permeable lens designs for patients with irregular corneas. If a patient has a 6. The GP lens can be made with single vision optics or multifocal optics, which can give patients more options when it comes to multifocal designs. 00 -3. Greenfield, MA . GP contact lenses are custom made for each patient based on the eye’s individual curvature, size, corneal shape. 6 million adolescents ages 12 to 17 years (14. Most people with average prescriptions should be able to get a year’s worth of contact lenses for $200 to $500. For more info please call us at - 415. Click-to-Call 860-635-6149. Contact lenses Gas-permeable lenses. Contact lenses also increase the risk of eye damage because bacteria and. Gas permeable (GP) lens wear provided significantly better vision than glasses. 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. It provides about 20x magnification and projects the contact lens on a glass screen with a reticule for measurements. This offers clearer vision and a lower risk of eye infections. 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. Sharp vision. With over 50 years of experience in manufacturing gas permeable contact lenses, you can count on our lab’s state-of-the-art equipment,. Advantages of gas permeable lenses. H ybrid lenses have a unique contact lens design that is made up of a gas permeable (GP) center with a soft contact lens “skirt” attached. 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. Soft contact lenses have their disadvantages too, including a higher rate of infection and less durability than gas permeable. 5 million young adults ages 18 to 24 years (24. On opening day, Contamac was excited to announce the launch of Nutrifill, an FDA cleared (K181566) preservative-free saline solution with 5 essential electrolytes for filling and rinsing scleral, hybrid,. 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. Trivedi , Suresh K. Eye Contact Lens. “There are some options that can make a big difference,” Dr. Price above includes standard sphere lens only. Lens Design. Andre:This condition, called Acanthamoeba keratitis, is associated with wearing contact lenses while swimming and can cause permanent vision loss or require a corneal transplant to recover lost vision if not treated early enough. 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. Disadvantages of Gas Permeable Contact Lenses. 824. The mainstay of treatment for a patient with keratoconus is a gas-permeable contact lens. 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. Pp 351. Method: Gas permeable (GP) CLs have been found to achieve better best corrected visual acuity than spectacles, eliminating 3rd-order coma root-mean-square (RMS) error, 3rd-order RMS, and higher-order RMS. This offers clearer vision and a lower risk of eye infections. ICD GP Lenses. Purpose: To compare children's reports of comfort, vision, and contact lens-related issues in gas permeable (GP) and soft (SCL) contact lens wearers. The proof is in the numbers. In years following, PC Optical, Soderberg Contact Lens, Ideal Optics, Westcon and Hydrogel Vision (Extreme H2O) have joined X-Cel in representing the contact lens division of Walman. Login Sign In. This allows to bypass severe corneal irregularities. . 3. Extended Wear: can be worn overnight. Rigid Gas Permeable Lenses. 7 out of 5 stars. Gardner, MA . CONTACT VISUALEYES. Even though modern soft contacts and gas permeable lenses are more breathable than older designs,. Bausch + Lomb is one of the world leaders in the research, development and supply of gas permeable contact lenses… Read More. Hybrid and gas permeable lenses require more time and expertise to get a precise fitting, so factor that into your buying decisions. Key Words: astigmatism, bitoric, contact lens, gas permeable GP contact lenses make up 10% of the contact wearing population and bitoric lenses comprise an even smaller percentage of that population, but still they serve an important purpose for a particular patient base with high amounts of astigmatism. We have multifocal soft and gas permeable multifocal lenses. Rigid gas permeable contact lens correction of aphakia following congenital cataract removal during infancy. The price range for contacts can feel broad, but. 2019 May 8. GP contact lenses are also known as rigid gas permeables, or RGPs. 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. The multifocal contact lenses used to correct presbyopia can also help slow progression. Call (703) 417-9316 to learn more. Located at 160 West Street in. Methods: New CLs (soft or GP) fittings were retrospectively analyzed and divided into refractive and therapeutic prescriptions. Approved for all Soft & RGP Contact Lenses. Though costs are initially higher than traditional contact lenses, in the long term they are more cost-effective, and unlike disposable lenses, they don’t require ongoing replacement. Intended for: Myopic and hyperopic patients who desire crisp, clear vision. Rigid Gas Permeable Lenses. Shadowscopes are often used for evaluating the contour and thickness of the edge of the contact lens. Jul-Aug 1992;29(4):243-245. 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. 3mm, but the near zone has 3. This attribute grants them several advantages over traditional soft contact lenses. Typical Transmittance Profile of -3. In the last year, two new GP materials were launched that may be useful in the fitting of scleral lenses. PAY BILL ONLINE. Chapter 1: Gas Permeable (GP) Contact Lenses Market Product Definition, Product Types, Volume, and Revenue Analysis of Each Type in North America, Europe, Asia-Pacific, Latin America, Middle East. Gas Permeable (GP) Contact Lenses. A Look at the Numbers. The company recently launched a new multipurpose solution for cleaning and disinfecting any GP contact lens – Tangible® Clean – that helps to protect coated lenses from wear. On this page: Soft Contact Lenses. 15 (Snellen chart), respectively. S. Key Words: astigmatism, bitoric, contact lens, gas permeable GP contact lenses make up 10% of the contact wearing population and bitoric lenses comprise an even smaller percentage of that population, but still they serve an important purpose for a particular patient base with high amounts of astigmatism. 94mm, 7. 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. In the United Kingdom, Pullum et al. We offer a wide range of contact lenses to suit most people. It is. The price range for contacts can feel broad, but they. 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. Money Back. Shop online at 1-800-GET-LENS ® for your Gas Permeable contact lenses online or call toll-free 1-800-GET-LENS. 00 D OPTIMUM GP Contact Lens with UV versus a Human Cornea and Human Lens Cornea - Human cornea from a 24-year-old person as described in Lerman, S. Gas permeable lenses are the most common hard-to-fit contact lenses because they work with a variety of eye conditions. Many translating GP lens designs have lined or blended lens segments dedicated to distance, intermediate, and near working distances, which can be manipulated independently of one. 04mm, 7. The ESSential GP Multifocal family is a series of lenses that includes the ESSential GP multifocal and ESSential Xtra, with the option of adding a front-surface annular component called a concentric S-form add (CSA) enhancement to either design. Gas Permeable Lenses. 0 to 9. Soft contacts are now available in multi focal, for astigmatism and even for overnight wear. TX serving the West Texas area. Advantages of Gas Permeable Contact Lenses. Hard contact lenses are also known as gas permeable lenses and rigid gas permeable lenses. Piggyback. For GP lenses, Clear Care’s indication includes a digital rubbing step. Specialized Uses of. Modification of contact lens may be reported using CPT code 92325 when performed separately. Despite advances in soft lens technology, however, the gold standard for quality of vision is still a gas permeable (GP) lens. . How gas permeable contacts are made. Research shows that gas permeable lenses might be effective in slowing the progression or worsening of myopia or nearsightedness, particularly in children. doi: 10. 25D or higher The first rigid corneal contact lens – commonly called the “hard lens” – was introduced in the late 1940’s. A. )In the late 1970s, gas permeable contact lenses were first introduced. Hard contact lenses were made of a material known as PMMA or Perspex. There are many types of contact lenses. 5 Fl Oz Multi-Action Solution, 0. Because GP lenses are made with oxygen-permeable silicone, they allow more oxygen to reach the front surface of the eye than traditional hydrogel soft contact lenses. 1097/ICL. Boston II Product Information. instrument commonly used with rigid gas-permeable contact lenses in order to inspect several aspects of the lens. 67 ± 0. 2020 Sep;35:32-34,36,37,51. Rigid gas-permeable contact lens problem solving. ) If that doesn’t work, use a suction cup device or remover tool. 00D of with-the-rule astigmatism. Picciano S, Andrasko GJ. In many ways they are similar to hard lenses but are porous to oxygen. The new solution. Corneal staining was graded. Dry Eyes: One of the more common complaints among people who wear contacts is dry eyes. GP contact lenses are custom made for each patient based on the eye’s individual curvature, size, corneal shape. ClearKone-Synergeyes or rigid gas-permeable contact lens in keratoconic patients: a clinical decision. ESSential Multifocal GP lenses utilize an alignment fitting philosophy that ensures long-term corneal integrity and stable vision. Centers for Disease Control and Prevention (CDC), an estimated 45 million Americans wear contact lenses — including 3. , Ste 202 Metairie, LA 70002Bifocal and Multifocal Contact Lenses If you need correction for presbyopia but dislike the idea of bifocal eyeglasses, you have many contact lens options. They offer excellent eye health: because they… Read More Lens Design Bausch + Lomb is one of the world leaders in the research, development and supply of gas permeable contact lenses… Read More Click here to order contact lenses, delivered straight to your door! Gas permeable (GP) contact lenses, also known as rigid gas permeable (RGP) lenses, are hard contact lenses made of silicone-containing compounds that allow oxygen to pass through the lens material to the eye. Contact our team of specialty contact. For one, because GP lenses are made from a firm plastic product, they maintain their shape when you blink, which tends to provide sharper vision than flexible soft lenses. Lens Comparison. Call us today to schedule an eye exam or learn more about rigid gas permeable lenses. lemaster • Oct 19, 2015. Rigid Gas Permeable (RGP) Contact Lenses These lenses are made of a firm durable plastic that transmits oxygen. GP contact lenses are rigid, but they shouldn't be confused with old. Rigid contact lenses were made from this material from 1948 to 1980. 19 ± 0. Gas permeable contact lenses, also known as GP or rigid gas permeable (RGP) lenses, are severely underrated. What are gas permeable contact lenses? Gas permeable lenses are rigid lenses - in many ways, they're similar to hard lenses but are porous to oxygen. Simply remove the lens, clean it off, and reapply properly. WEST VILLAGE EYECARE ASSOCIATES is your local Optometrist in New York, NY serving all of your needs. Contact Lens Anterior Eye. Make Appointment. Gas permeable (GP) contact lens performance is highly dependent on the quality of the lens surface. com GP contact lenses are custom made for each patient based on the eye’s individual curvature, size, corneal shape. PAY BILL ONLINE. They also can correct vision problems caused by keratoconus that cannot be corrected with eyeglasses or soft contacts. Most GP lenses contain silicone that is oxygen permeable, so oxygen can pass through the lens giving greater comfort and. Because GP lenses are made with oxygen-permeable silicone, they allow more oxygen to reach the front surface of the eye than traditional hydrogel soft. Information about how to avoid problems such as fogging and poor wettability and how to optimize comfort is all over social media. GP lenses are currently less popular than soft. You will need to press your eye gently at the edge of the. What is a Gas Permeable (GP) lens? GP contact lenses are made of a firm, durable plastic that transmits oxygen. The prescription powers on these lenses must be within the pupil’s range of adjustment in contacts, but contacts move in the eyes, which can put them off-center. Located in the West End of Providence. 100000. Clinical Contact Lens Practice. Then I went into soft lenses, but the dry eyes bothered me a little, so I went into GP lenses. • If the near segment is too far into the papillary area, truncate the lens to lower the segment height. Benefits of Gas-Permeable Contact Lenses. These lenses also are called GP lenses, rigid gas permeable lenses, RGP lenses and oxygen permeable lenses. 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. Sometimes, whether due to. Bethesda Vision Care 4300 E West Hwy Bethesda, MD 20814 Phone: 301-656-0775 permeable lenses are the most common hard-to-fit contact lenses because they work with a variety of eye conditions. Methods: Subjects were 116 8- to 11-year old children in the Contact Lenses and Myopia Progression Study. A reverse piggyback tandem of a soft lens placed on top of a GP lens failed to provide an optimum fitting relationship in this case. Their ability to transmit oxygen reduces eye problems such as dry eyes caused by reduced. 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 lenses have a smaller diameter than soft contacts, meaning. Although the rate of microbial keratitis (MK) among all contact lens wearers. Contact Lens Spectrum. These lenses, called corneo-scleral lenses, generally are approximately 13 to 15 mm in. Contact lens fitting has always played a valuable role in the visual rehabilitation following keratoplasty. Aspects of contact lens wear were compared for children remaining in their original treatment group. GP lenses offer exceptional visual clarity and are highly effective in. One example of myopia control contact lenses available in the U. DeNaeyer GW. Dry Eye Scleral Lenses 7525 Tidewater Dr, Ste 41, Norfolk, VA 23505. Request An Appointment. Valley Contax V Kone (VK) Gas Permeable Contact Lens (roflufocon D, roflufocon E, tisilfocon A, hexafocon A, enflufocon A) Common . Rigid Gas Permeable (RGP), also known as Gas Permeable (GP) lenses, are effective for many hard-to-fit patients. Centers for Disease Control and Prevention. ) After several trial lenses (8. 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. Among controls, repeat biometry readings were taken a median of 2 days (IQ range 1. Rigid Gas Permeable (RGP) Contact Lenses. However, after some time, you […] This increases comfort and maintains eye health. Customized toric lenses can improve your high. Gas permeable (GP) lenses are a good choice for fitting patients after refractive surgery. Gas permeable contact lenses offer some impressive benefits over soft lenses. 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 lenses allow your eyes to "breathe. et al. Gas Permeable (GP) Contact Lenses These rigid lenses aren’t as popular or well-known as soft lenses, but they offer the advantages of durability, crisp vision and high oxygen permeability. 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. 2374Gas 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. Table 2 shows the mean BOZR of the diagnostic lens. However, I started developing some lens intolerance, and dry eye was still an issue for me, so it decreased my wearing time. 19 ± 0. Inferiorly centered GP lenses are another major cause of 3 and 9 o’clock staining,. Because of the strong material and the ability to diffuse oxygen, GP. Effective lens cleaning solution for gas permeable (GP) and hard contact lenses. Patients who need good vision at all distances, including intermediate distance. Hybrid contact lenses. Call 856-205-4141. GP lenses have a smaller diameter than soft. The key information to record to adequately describe the fit of an GP was agreed as: the manufacturer, brand and lens parameters; settling time; comfort on a 5 point scale; centration; movement on blink on a ±2 scale; and the Primary Fluorescein Pattern in the central, mid-peripheral and edge regions of the lens averaged along the. RX $50 15+ 24/7. Advantages of Gas Permeable Contact Lenses. New hybrid lens options are opening up treatment possibilities for patients with unusual visual needs. Most disposable contact lenses are made with an injection molding process, as this method is faster and less expensive than lathe cutting processes. While these lenses are rigid, they should not be confused with the hard contact lenses of. Gas permeable contact lenses offer some impressive benefits over soft lenses. On this page: Soft Contact Lenses. Not For Use With Soft (Hydrophilic) Contact Lenses. 00 D OPTIMUM GP Contact Lens with UV versus a Human Cornea and Human Lens Cornea - Human cornea from a 24-year-old person as described in Lerman, S. Crafted from a patented oxygen-permeable material that allows your eyes to breathe, the low-maintenance contact lenses are. According to the most recent data published by the U. We also proudly offer our in house multifocal design (High. com (Do not send personal health information by email. Soft contact lenses are the most likely to have problems. It's an excellent choice for people with sensitive eyes, dry eyes, or astigmatism. Clinical Manual of Contact Lenses. This unique patented formula is not sold to any retailer as a store brand. In 2023, an eye exam in the. GP Contact Lenses The use of rigid lenses in pediatric contact lens fitting is becoming more widespread,. West Springfield, MA . Contact Lenses for the "Hard-to-Fit" Patient. In theory, they should provide the vision of a GP lens with the comfort of a soft lens. The company recently launched a new multipurpose solution for cleaning and disinfecting any GP contact lens – Tangible® Clean – that helps to protect coated lenses from wear. Facebook Twitter Youtube Linkedin Pinterest. Scleral lenses usually last for up to 3 years, but as with all types of. 38 mm. Coral Springs, FL 33065 800-852-8089. — ABB Optical Group, a leading distributor of optical products, is acquiring Diversified Ophthalmics, Inc. Many independent laboratories are members of the Contact Lens Manufacturers Association. GP Contact Lens Cost: Are GPs a Better Value? (April, 2013). These lenses also are called GP lenses, rigid gas permeable lenses, RGP lenses and oxygen permeable lenses. Though not as popular as soft contact lenses, GP lenses offer. Special features. This increases comfort, health and safety during contact lens wear. The easiest way to remove protein deposits weekly from your RGP lenses just got easier. I. GP contact lenses (primarily made from fluorosilicone acrylate, introduced in 1987) Soft lenses, made from gel-like plastic, first marketed in 1971. Contact our team of specialty contact lens consultants to learn about. Contact lenses were worn on average for a median of 12 h per day (IQ range 10–14). 2mm, is designated for near. 00D of with-the-rule astigmatism. 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. 4 percent of this age group), and 33. J Am Optom Assoc. Monday. Research shows that gas permeable lenses might be effective in slowing the progression or worsening of myopia or nearsightedness, particularly in children. GP contact lenses are custom made for each patient based on the eye’s individual curvature, size, corneal shape. Hard contact lenses are also known as gas permeable lenses and rigid gas permeable lenses. Hard lenses include rigid, gas permeable types. Cosmetic & Tints; Gas Permeable; SEED Daily Disposables; Terms & Conditions; RGP lenses. If the lens is stuck on the white of the eye, use the pad of your fingertip to gently press your eye just outside the edge of the lens to break the suction that is keeping the contact stuck in the eye. Our Company. Because GP lenses are made with oxygen-permeable silicone, they allow more oxygen to reach the front surface of the eye than traditional hydrogel soft contact lenses. These rigid lenses aren’t as popular or well-known as soft lenses, but they offer the advantages of durability, crisp vision and high oxygen permeability. Patients with less than 3. 99; PureVision 2 For Astigmatism Contact Lenses – $53. (21 CFR 886. , visit the Gas Permeable Lens Institute’s searchable online database: . Though not as popular as soft contact lenses, GP lenses offer a number of advantages over soft lenses. Standard Gas Permeable (GP) contact lenses and Scleral contact lenses are the treatment option of choice for keratoconus because they help contain the shape of the cornea to prevent further bulging of the cornea. 12 week supply. 25D or higher. The question of which contact lens is best for you should ultimately be decided in. 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. The advent of soft disposable contact lenses permanently altered the contact lens landscape, resulting in the decline of corneal gas permeable (GP) lens fitting. The advent of soft disposable contact lenses permanently altered the contact lens landscape, resulting in the decline of corneal gas permeable (GP) lens fitting. Coral Springs, FL 33065 800-852-8089. 1. Soft contact lenses. Success of Rigid Gas Permeable Contact Lens Fitting Eye Contact Lens. Polyethylene glycol (PEG)-based polymer mixture can be covalently (permanently) bonded to the surface of the contact lens to create a wet surface on the lens material, separating. 1-Day Acuvue Define. 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. For gas permeable contact lenses. [Google Scholar] 18. Call Now! 623-933-2013 . 8. Simply remove the lens, clean it off, and reapply properly. Hard ( PMMA) lenses, the original type of contact lens, now virtually obsolete. You can also opt to visit our clinic in West New York, New Jersey, for a walk-in consultation. 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. Cost of Gas Permeable Lenses. Wisconsin 1220 Miller Park Way, West Milwaukee, WI 53214 Contact Lenses in Shorewood,. Options such as soft, conventional corneal gas permeable (GP), hybrid and piggyback contact lenses all come with limitations that stymie success. A GP-type lens, whether it be corneal GPs, hybrids or sclerals, works well to mask corneal irregularities and diminish higher-order aberrations. 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. ClearKone lenses are the first FDA cleared hybrid contact lenses specifically designed for keratoconus vision correction and other corneal irregularities. Call Now! 623-933-2013 . Rigid Gas Permeable Contact Lenses Place rinsed lens in original lens case. GP lenses are currently less popular than soft lenses but offer a number of advant. Request Appointment. The only US solutions approved for lenses with Hydra-PEG are Tangible Clean, Boston Simplus. Establish a low-price-tier for an annual-supply purchase of eight boxes of two-week lenses or four boxes of monthly lenses. 50 for 30 lenses so just £15. 6400. B. Most people wear lenses with a diameter of 8 to 10 mm. Your Eye Care Gas permeable contact lenses, also known as GP or RGP (rigid gas permeable) lenses, are used to correct vision problems caused by oxygen deprivation. Soft contact lenses include: Daily Wear: can be worn up to 18 hours but must be removed and cleaned at night. Northeast – $107. GP Lenses for Myopia Control and Ortho-K. 5 Fl Oz (Pack of 2)In comparison, most conventional GP contact lenses are 9. Cost of Gas Permeable Lenses. com. It's an excellent choice for people with sensitive eyes, dry eyes, or astigmatism. CALL 951-609-9099. Coral Springs, FL 33065 800-852-8089. GP Scleral Contact Lens - ultimate control of the complete fit!. Gas permeable (GP) lenses are a great resource for managing aphakic infants. We then fit the patient with the semi-scleral MacroLens (C & H Contacts, Inc. These lenses also are called GP lenses, rigid gas permeable lenses, RGP lenses and oxygen permeable lenses. Disadvantages of Gas Permeable Contact Lenses. 9 million. Gas permeable (GP) contact lenses, also known as rigid gas permeable (RGP) lenses, are hard contact lenses made of silicone-containing compounds that allow oxygen to pass through the lens material to the eye.