GP contact lenses (primarily made from fluorosilicone acrylate, introduced in 1987) Soft lenses, made from gel-like plastic, first marketed in 1971. Then I went into soft lenses, but the dry eyes bothered me a little, so I went into GP lenses. 3% of keratoconus eyes and 100% of keratoconus suspect eyes achieved a VA of 0. Follow these steps to safely remove a gas permeable. 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. Wash your hands with soap and water. RGP lens removal. Durham. Contact lenses rest directly on your eyes buoyed by the tear film. These lenses also are called GP lenses, rigid gas permeable lenses, RGP lenses and oxygen permeable 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. Traditional treatment for irregular astigmatism has been rigid gas permeable (GP) lenses, which can provide superior vision compared with spectacles. With over 50 years of experience in manufacturing gas permeable contact lenses, you can count on our lab’s state-of-the-art equipment, cutting-edge technology, and top quality materials to provide your patients with exceptional service and GP lenses. Hybrid. 67 Crowfoot Terrace. Dr. 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. 2008 Jul;34:198-200. Generally, fitting gas permeable contact lenses takes more time and expertise than fitting soft contact lenses (including toric soft 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. As opposed to soft silicone hydrogel contact lenses, GP lenses retain their shape better, giving them more a “rigid” feel during wear while still allowing oxygen to pass through the. It can take up to four weeks to get used to wearing gas permeable lenses. Fits up to 95% of all contact lens candidates. Because they are custom. The G. 1097/OPX. 9mm or 2. A zip code search provides the 25 closest results within a 100-mile radius. 3. Get them in Boynton Beach & Naples FL. Dry your hands with a clean, lint-free towel. Gas Permeable Inferior Decentration: Terry R. While you are asleep, the lenses gently reshape the front surface of your eye (cornea) so you can see clearly the following day after you remove the lenses when you wake up. Boston Conditioning Solution – Improved Formula + More Details - Less Details. 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. Rigid gas-permeable contact lens problem solving. 1. Shop online at 1-800-GET-LENS ® for your Gas. Well known for their exceptional visual performance, GP lenses, also referred to as gas permeable or rigid gas permeable (RGP) lenses, are often not immediately associated with enhanced safety. Key is in private practice in Houston and serves as clinical professor of ophthalmology at Baylor College of Medicine. REMLens® features a four-curve, reverse geometry design with an advanced and revolutionary Dynamic Edge Profile™ providing superior on-eye. 2:00 PM - 6:00 PM. " "Gas permeable lenses worked well for me about 10 years. Rigid gas permeable (GP) contact lenses (CLs) are the first option in keratoconus patient management[1,2,3] because they provide better visual rehabilitation and improve the quality of life of these patients. In optometry school, we learn the basic fitting principles of both soft and gas permeable (GP) 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. We offer state-of-the-art technology and products to meet your vision needs and have two convenient locations. On this page: Soft Contact Lenses. 8 mm in optic zone diameter and were fitted to achieve central alignment. However, in certain cases gas permeable (GP) lenses can be used for therapeutic purposes, especially in cases of corneal irregularity. Gas Permeable (GP) Contact Lenses. The efficacy of wearing RGP contact lens has been confirmed to some extent, but. We also know that GP lenses tend to center over the steepest apex of the cornea. , Ste 202 Metairie, LA 70002Non-custom soft contact lenses didn’t fit right for this patient with a sagittal height of 4,259µm. How do I put in gas permeable contacts? When putting in gp lenses, follow these steps: 1. RGP lenses have the ability to let oxygen reach the eye behind the lens, which is essential for good eye health. Modeling Corneal Oxygen with Scleral Gas Permeable Lens Wear. Then I went into soft lenses, but the dry eyes bothered me a little, so I went into GP 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 (RGP) are also known as ‘hard’ contact lenses are also used for the correction of astigmatism. Most People Prefer Scleral Lenses Over Gas-Permeable Lenses. Remove a lens from its case. DESCRIPTION OF LENSES The OPTIMUM GP series of contact lenses are fabricated from the hydrophobic contact lens materials (roflufocon A), (roflufocon C), (roflufocon D), & (roflufocon E). One Step Liquid Enzymatic Cleaner is a simple and convenient way to effectively remove protein deposits weekly from gas permeable (GP) contact lenses to help maintain contact lens wearing comfort. Gas Permeable (GP) Contact Lenses. Lens design. Over the last several years, scleral lenses have proven to be life-changing devices for countless patients who need the protection they afford the corneal and limbal surfaces or who need gas permeable (GP) optics but can’t tolerate GP lenses, according to Jason Jedlicka, OD, associate professor at the Indiana University School of Optometry. The GP contact lenses were 9. Lenses. It can take up to. 1. However, after some time, you […] Advantages of Gas Permeable Contact Lenses Gas permeable contact lenses have a number of distinct advantages over typical soft 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. Boston Simplus Contact Lens Solution, for Gas Permeable Contact Lenses, 3. Winchester Optical's contact lens division was established in 1969 and has produced the highest quality spherical, toric and specialty rigid gas permeable lenses (RGP's) since their availablity. 3. Patients with up to 2. Caring for. And each RGP contact lens is custom-made to parameters specified by the prescribing optometrist. Purpose: To determine the repeatability of the back optic zone radius (BOZR) of rigid gas permeable (GP) contact lens (CL) proposed by new. Custom-made from a rigid oxygen-permeable material, gas permeable contact lenses (also called GP, RGP or oxygen-permeable contacts) are more resistant to proteins and other deposits, making. When gas permeable contacts become cloudy, it’s usually due to tiny particles of dirt or debris that get stuck inside or around the lens. 75 or more astigmatism • You must evaluate lens rotation • Markings are typically at 6:00 Remember LARS • Left add; right subtract from the SPECTACLE refraction • Each clock hour is approximately 30 degrees • Let’s do an example. Empiric. An irregular corneal surface does not allow for optimum vision. 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. ABOUT US. This includes their cost, advantages, and disadvantages. Shop contact lenses. 2mm near-center design, while the aspheric lens design has a 3. 1. It aims also to show whether soft or rigid gas-permeable (GP) contact lenses offer the best correction and to determine which modality is preferred by subjects. Maller is in private solo practice in Fort Lauderdale, FL. Thankfully, however, most cases of keratoconus can be successfully managed. Extended Wear Contact Lenses. Keratoconus is a progressive disease, which has a great impact on patients' quality of life and mental health. Click image to enlarge. Ordering cheap Boston RGP contact lenses is fast and easy on DiscountContacts. 3. 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. FIGURE 7. The best contact lenses online can include anything from colored contacts to disposable lenses, corrective vision wear for astigmatism and prescription contact lenses. Pp 351. A large gas permeable contact lens, the G. 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 contacts are great at. 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. If the lenses are not adequately hydrated and moist, they will become uncomfortable and your eyes will feel irritated, dry, and itchy. 1-800-GET-LENS ® - Popular Contacts - LOWEST PRICE GUARANTEE on all Popular contact lenses. When gas permeable contacts become cloudy, it’s usually due to tiny particles of dirt or debris that get stuck inside or around the lens. The lenses were often difficult to remove at the end of […] Gas permeable contact lenses are another popular type of contact lens for astigmatism. (Alcon) for cleaning and disinfection. 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. 00D of with-the-rule astigmatism. During primary gaze, upward gaze and between blinks, the upper edge of the lens should be retained under the upper lid. Gas permeable lenses are a very good option and can be quite. If the lens is still stuck, repeat the rinsing step several times, blinking frequently after each. The wettability of a gas permeable material is one of the key factors governing the performance of a lens on eye and along with permeability, will influence a practitioner’s choice of a particular material. In fact, myopia control contact lenses can slow myopia progression by up to 59%. B. Cont Lens Anterior. 90 per lens. • Over-refract and adjust the lens power if necessary. ClearKone-Synergeyes or rigid gas-permeable contact lens in keratoconic patients: a clinical decision. 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. The main goal of this current work is to use an updated calculation paradigm, and updated boundary conditions, to provide theoretical guidelines to assist the clinician whose goal is to improve his or her scleral. Eye Contact Lens. GP lenses are currently less popular than soft. They provide sharper vision. 12 Another 350µm should also be included to account for necessary corneal clearance. Hybrid and scleral contact lenses are increasingly prescribed as a first-line treatment for keratoconus. Corneal GP Lenses The conventional standard for managing keratoconus has been corneal GP lenses. RGP lenses. One study reports that GP lenses provide superior. 8 This shows that selecting or changing lenses based on BC alone may not be most appropriate as sagittal height. Gently but firmly pull straight back, pulling the edges of your eyelid tightly against your eye. 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. The GP lenses are. 2017 Jul 31;11:241-251. A contact lens splits the tear film into pre-lens and post-lens layers with different components. 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 many years TruForm has produced the highest quality spherical, toric and other specialty rigid gas permeable lenses, while emerging as the leader in bifocal/multifocal contact lens designs. Eye Care Services. Located Inside LensCrafters Serving Akron, Cuyahoga Falls & Tallmadge. They offer excellent eye health: because they… Read. If a SCOR is found over a spherical powered scleral or GP lens, this power can often be added in the form of front surface toric (FST) power. 4 . These patients represent a tremendous opportunity for us to look beyond the soft lens fitting sets in our offices to find a customized and highly satisfying vision solution: gas permeable (GP) multifocal lenses. Although you can break them (for instance, if. GP lenses. Clinical Contact Lens Practice. Patients with less than 3. Gas permeable contact lenses are rigid lenses made of durable plastics that allow oxygen to pass through the lens. 9. Do not use soaps that contain lotion, cream, perfume, or artificial coloring. What are gas permeable contact lenses? Gas permeable lenses are rigid lenses. Scleral lenses have made gas permeable (GP) lenses appetizing again, and as a result, there is a renewed focus on finding ways to perfect the process of making GP lenses. 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. 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. There are bifocal and multifocal contact lenses that are specifically designed for people with astigmatism. Scleral lenses usually last for up to 3 years, but as with all types of. Nonetheless, most practitioners consider gas permeable (GP) lenses the standard of care for rehabilitating vision due to irregular astigmatism. 1995;14(2):121-9. 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. This can also be caused by protein buildup, which can usually be cleaned off, but if that doesn’t work, it may be the quality of GP lenses themselves. 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. These rigid lenses offer the advantages of durability, crisp vision, and high oxygen permeability. Nau AC. Most people choose soft. Follow these steps to safely remove a gas permeable. 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. Boston Advance Conditioning Solution. 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. Using this per-box estimate, your annual lens cost for daily disposable contacts is $720 to $960. [1,2,3,4,5] Fitting of GP lenses in keratoconus patients and achieving an acceptable fit can be considered challenging for eye care practitioners due to keratoconus being a progressive. GP contact lenses are custom made for each patient based on the eye’s individual curvature, size, corneal shape. Soaking the lenses for 30 minutes will remove protein, lipids and other contaminants. 0 mm in diameter, fitting better in small central or mild cones . They provide sharper vision. Corneal thickness changes during scleral lens wear: effect of gas permeability. But others may find they provide better comfort than normal GP lenses. Eye doctor listings provide address and phone number and, if available, website or email address. is designed to center well on the corneas of patients for whom conventional lenses often decenter. 1 This is especially true given the increased uptake of overnight lens wear in children being treated with orthokeratology for myopia control. , visit the Gas Permeable Lens Institute’s searchable online database: . Hard lenses are often interchangeably referred to as rigid gas-permeable lenses (RGPs); however, this is not strictly true. Randomised controlled trial of corneal vs. Gas-Permeable (GP) Lenses. Unlike eyeglasses, you can place them directly on the eye. Your Creekside, Crowfoot, or West Springs eye doctors at Blink Eyewear will take precise measurements to properly fit your contact lenses. It is a lifelong eye disease. Gently press the concave end of this. Add powers are from +1. Contact Lenses for Keratoconus- Current Practice Open Ophthalmol J. 6. 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. Lens adherence, although it generally does not go unmentioned. The pre-lens tear film consists of the outer lipid layer of the tear film and a portion of the aqueous and mucin mixture. 0 to 10. A state search will display all results in alphabetical order by city. Progent ® is a highly effective deposit and protein remover and cleaner compatible with all RGP contact lenses. Silicone hydrogel contact lenses are advanced contacts that may be healthier than regular soft lenses. And, like GP contacts, these lenses are custom-made for each wearer's eyes. GP contact lenses clean and disinfect easily, don’t dehydrate, are easier to handle, and last. Hybrid lenses have a GP lens center surrounded by a soft contact lens skirt. It can take up to four weeks to get used to wearing gas permeable lenses. Boston Simplus Contact Lens Solution, for Gas Permeable Contact Lenses, 3. Specialized Uses of. Enhanced comfort through edge lift control. 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. Rigid contact lenses were made from this material from 1948 to 1980. It offers the optics of a GP lens with the comfort of a soft contact lens. . Your contact will be uncomfortable and won’t provide clear vision. 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. An aspheric, back surface corneal GP contact lens design. Gas permeable contact lenses, also known as GP or RGP (rigid gas permeable) lenses, are used to correct vision problems caused by oxygen deprivation. 5mm to 25mm in diameter. We have all the major brands in stock and ready to go. Rigid gas permeable contact lenses (RGP CLs). 3 Combination Lens Fitting;. Wash your hands with soap and water. Modern scleral. Using the various indicators of corneal shape can help understand the cornea and assist in lens design. 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. Rigid gas permeable contacts are “hard” contact lenses—they can’t bend and flex like soft ones. Carefully observe directions, warnings, and precautions on the inner cartons. RX $50 15+ 24/7. Boston EO® and Boston ES® are rigid gas permeable materials for demanding visual needs, with high flexural resistance—excellent for thin and ultra-thin. Try to get into the. In these cases, soft contact lenses may not be enough. Gas permeable contact lenses are another popular type of contact lens for astigmatism. Indicate if plasma coating is desired. 2001-27:195-201. 1. These devices have been found to accurately measure the base curve radius within tolerance. Shown is an optimally fitting GP aspheric multifocal. Intralimbal lenses (10. Advantages of Gas Permeable Lenses. A great resource you can take advantage of to learn how to design GP lenses from scratch is The Manual of Gas Permeable Contact Lenses, 2nd Edition. Table 1: Resources the Laboratory Can Provide 1. GP lenses are custom-lathed (machined) to a smooth surface and maintain their shape on the eye. Options such as soft, conventional corneal gas permeable (GP), hybrid and piggyback contact lenses all come with limitations that stymie success. 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. For GP lenses, Clear Care’s indication includes a digital rubbing step. Poor Distance Acuity. Extended Wear Contact Lenses. Toric Contact Lenses for Astigmatism. Contact lenses Gas-permeable lenses. 919-213-6490. Currently there is no cure for keratoconus. Methods: The Contact Lens Risk Survey (CLRS) and health behavior questions were completed online by a convenience sample of 1056 SCL and 85 GP lens wearers aged 20 to 76 years. GP lenses are made of durable plastic that allows more oxygen and moisture to reach your eyes. 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. Verification of the BCR of gas-permeable (GP) contact lenses is also possible with several automated keratometers. Remove a lens from its case. GP contacts are made of a firm. doi: 10. Can Med Assoc J 2010; 182:1045–1052. Shaughnessy MP, Ellis FJ, Jeffrey AR, Szcotka L. Optometry. 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. . 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. . 99. You can also order GP lenses empirically, by giving the topographies, keratometric values, pupil sizes, iris diameters, lid positions, fissure heights and refractions to a lab. GP contact lenses are also known as rigid gas permeables, or RGPs. This movement pumps oxygen-containing tears under the lens. And, like GP contacts, these lenses are custom-made for each wearer's eyes. On this page: Soft Contact Lenses. Generally, they cost between $20 and $30 a box. 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. Place your middle finger in the outer corner of your eyelid. PMMA (polymethyl methacrylate) — better known as Plexiglas or acrylic — was once considered the best material for contact lenses. The goal of our optometrists is achieving exceptional family eye care with complete patient satisfaction. 1. Dry your hands with a clean, lint-free towel. Rosenthal P, Croteau A. Gas permeable contact lenses. 2. If you are experiencing contact lens discomfort, schedule a visit with your eye doctor for a comprehensive examination. There are two categories of contact lenses based on. After years of innovation, soft contacts first became available in America in the 1970s and have since come to occupy the top spot in the contact world: 90% of people who wear contacts use soft lenses. Hybrid lenses are more comfortable than corneal GP lenses. The increased oxygen supply to the cornea will enhance corneal sensitivity that may have been lost due to a lack of oxygen availability through the PMMA material. Gas Permeable Lenses. Michaud L, Barriault C, Dionne A, Karwatsky P. Gas permeable contact lenses (also called GP or RGP contacts) are an alternative to soft lenses. You might also hear gas permeable lenses called: GP lenses. The tear reservoir between the cornea and the lens can act as a treatment for dry eye, especially aqueous insufficient type. Dr. We believe in what we do, that every contact lens we. Schedule An Eye Exam. Call Dr. Scleral lenses have made gas permeable (GP) lenses appetizing again, and as a result, there is a renewed focus on finding ways to perfect the process of making GP 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. Technology is showing us that even the world of vision correction is evolving by curating gas-permeable contact lenses. Gas permeable (GP) lens wear provided significantly better vision than glasses. Gas Permeable (GP) contact lenses have many benefits and are often better than soft lenses because. . Rigid gas permeable lenses retain their spherical shape on the eye, instead of adjusting to the shape of the irregular cornea. CLAO J. His practice is devoted to specialty contact lenses and orthokeratology. 1. 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 lens wearers who present with dry eyes can usually be easily managed once we as practitioners determine the cause of the dryness. Rigid gas permeable lenses, known as ‘hard’ lenses, are worn by about 13% of contact lens wearers in the United States. Wettability of GP contact lens materials. Gas Permeable Inferior Decentration: Terry R. Treating the ocular surface, changing lens materials and switching cleaning regimens are. Well known for their exceptional visual performance, GP lenses, also referred to as gas permeable or rigid gas permeable (RGP) lenses, are often not immediately associated with. Edwards K. brand 1-800-GET-LENS ® - Gas Permeable Contacts - LOWEST PRICE GUARANTEE on all Gas Permeable 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. A: Small bumps on the inside of an eyelid in a person who wears contact lenses usually mean a condition called giant papillary conjunctivitis (GPC). They have proven to become a very successful replacement for hard lenses (PMMA). Tuesday: 8:45 AM - 6:00 PM. Advantages of gas permeable lenses See full list on eyehealthweb. 1. According to the Amsler–Krumeich classifications, we included 18 eyes in stage 1, 35 eyes in stage 2, and 28 eyes in stage 3. Specialized Uses of. Hansen is an optometrist in private practice with more than 30 years of RGP and bifocal contact lens fitting experience. 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. Please note that non-sphere lenses are priced at $94. 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. 2020 Sep;35:32-34,36,37,51. Gas Permeable (GP) contact lenses have many benefits and are often better than soft lenses because. Concentric bifocal lenses can be made of either soft or rigid gas permeable (RGP or GP) contact lens materials. GP lenses allow your eyes to “breathe. DESCRIPTION OF LENSES The OPTIMUM GP (roflufocon A, C, D, and E) and Optimum GP with HPT (roflufocon C, D, and E) Contact Lens for Daily Wear is a rigid gas permeable methacrylate copolymer of M ethyl methacrylate, 1,1,1,3,3,3 - Hexafluoroisopropyl Methacrylate, Methacryloxypropyl TrisDisinfection of Gas Permeable Contact Lenses 1!! Disinfection of Gas Permeable Contact Lenses This material will help you understand how to disinfect gas permeable (gp or. In order to buy from one of these brands, you'll need a recent eye. 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. 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. 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. Am J Ophthal. Get a Better Fit. If the complaint pertains to poor distance vision, it could be that the lens-to. Hassle-Free Ordering & Express Delivery. Cost. 4 Rigid Gas Permeable Lenses. 8 This shows that selecting or changing lenses based on BC alone may not be most appropriate as sagittal height. 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. Progent does not require mechanical cleaning (rubbing) to clean, polish and disinfect gas permeable lenses. Monday: 8:45 AM - 6:00 PM. 8 This shows that selecting or changing lenses based on BC alone may not be most appropriate as sagittal height varies between 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. Sold individually. 94mm, 7. Lenses. 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. 5 Combination Lenses; 3. In this case, that was: Essilor contact lenses, spherical GP contact lenses. Gas permeable contact lens care and handling educational video - learn about how to use gp contact 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.