While soft contact lenses are most common, another less familiar kind of contact lens materials exists: rigid gas permeable (RGP) lenses, sometimes known as oxygen permeable lenses.
In reality, GP lenses involve more modern technology than soft lenses, which last longer, offer better vision quality, and provide enhanced deposit resistance. Further they may also be cheaper in the long term than soft lenses. Of course, its advised to first discuss with your optometrist to determine if RGPs suit your lifestyle. Our optometry practice can assist you in determining if GP lenses are suitable for you.
Since an RGP is constructed from stiff material, it retains its form well when you blink, which can afford sharper vision than the average soft lens. Additionally RGPs are particularly durable. Though they will crack if stepped on, they don’t tear easily like soft lenses. Also, because they consist of substances that don't include water, proteins or lipids from your tears don’t adhere to GPs as readily as they do to soft lenses. People that are extra particular about quality of vision will most likely opt for RGPs.
On the downside, RGPs must be worn consistently in order to achieve maximum comfort. Additionally, there are some who experience “spectacle blur” with hard lenses, which is when vision is unclear when contact lenses are removed even while still wearing glasses. Although the effect is only temporary, it can demand constant GP usage.
If you're looking into hard lenses, be sure to first speak to your optometrist to ascertain if you really are a candidate. You never know…hard lenses could be the perfect match for you!
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