While you may be more accustomed to soft contact lenses, another less familiar kind of contact lens materials exists: gas permeable (GP) lenses, also known as oxygen permeable lenses.
In truth, GP lenses are a newer technology than soft lenses, and they are longer-lasting, can be more effective in improving eyesight, and provide enhanced deposit resistance. Additionally RGP lenses may also be less expensive in the long run than soft lenses. Certainly, you need to first discuss with your eye care practitioner to determine whether GPs suit your needs. Our optometry staff can help you figure out if you'd be a fit for hard lenses.
Because a GP is constructed from stiff material, it does a great job of retaining its form when you blink, which tends to afford crisper vision than the typical soft lens. Additionally GPs are particularly durable. Though they can crack if stepped on, they don’t easily rip like soft lenses. Also, because they're made of substances that don't contain water, proteins and lipids from your tears won't stick to RGPs as easily as they will to soft lenses. People that are especially fussy about quality of vision will probably opt for GPs.
On the downside, GPs must be worn regularly to achieve maximum comfort. Additionally, some people experience “spectacle blur” with RGPs, which is when eyesight is blurry when the lenses are removed even while wearing glasses. Though the effect is only temporary, it can necessitate constant GP wear.
When thinking about GP lenses, be sure to first speak to your optometrist to verify if you really are a candidate. Who knows…hard lenses might be the perfect match for you!