The Pros and Cons of Rigid Gas Permeable Contact Lenses
What are Rigid Gas Permeable Contact Lenses?
Rigid gas permeable contact lenses (also known as RGP or GP lenses) are hard, durable lenses made from silicone and gas-permeable materials. They are used to correct refractive errors such as nearsightedness, farsightedness, and astigmatism.
Pros of Rigid Gas Permeable Contact Lenses
1. Crisp Vision
One of the biggest advantages of RGP lenses is the clear and crisp vision they provide. They are able to correct higher degrees of astigmatism and irregularly shaped corneas, which can improve visual acuity and reduce the need for glasses.
RGP lenses are very durable and can last up to a year with proper care and maintenance. They are less prone to tearing or ripping than soft contact lenses, making them a good choice for active individuals.
3. Better Oxygen Flow
RGP lenses allow more oxygen to reach the cornea than soft lenses, helping to reduce the risk of corneal infections and other eye problems.
While the initial cost of RGP lenses may be higher than soft lenses, their durability means they have a lower yearly cost compared to soft lenses that need to be replaced more frequently.
Cons of Rigid Gas Permeable Contact Lenses
1. Initial Discomfort
Unlike soft lenses, RGP lenses take some time to get used to and may cause discomfort initially. However, after an adjustment period, the discomfort typically subsides.
2. Longer Adjustment Period
It can take a few weeks for your eyes to fully adjust to RGP lenses. During this time, your vision may not be as clear as with glasses or soft contact lenses.
3. Require Frequent Cleaning
RGP lenses require daily cleaning and disinfecting, which can be time-consuming and require more effort than soft lenses.
4. Can Dislodge During Physical Activity
RGP lenses may dislodge during physical activity, making them a less desirable option for those who engage in sports or other activities that involve physical contact.
While RGP lenses may have some disadvantages, they offer several advantages over soft contact lenses. They are a good choice for individuals with higher degrees of astigmatism or irregular corneas. While they may take some time to get used to, with proper care and maintenance, RGP lenses can last for a year, making them a cost-effective option in the long run. As with any type of contact lens, it’s important to consult with your eye care professional before making a decision on which type of lens is best for you.