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Contact Lenses

Contact lens on finger

Rigid Gas Permeable Contact Lenses for Keratoconus: Do They Work?

Are you thinking about trying rigid gas permeable contact lenses for your keratoconus?

Rigid gas permeable (RGP) contacts have long been a standard treatment option for people with keratoconus. Newer specialty lenses, like scleral lenses, have also started to gain popularity. But RGP lenses still play an incredibly important role in the management of keratoconus.

Let’s get into what keratoconus is and how RGP lenses work.

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Young boy getting an eye exam

MiSight Contact Lenses: Can They Slow Childhood Myopia?

Can MiSight contact lenses really slow childhood myopia? That’s what the research says.

Clinical studies have found that MiSight lenses can significantly reduce myopia progression. They can also reduce the physical changes in the eye that cause a child’s prescription to become stronger over time.

So, how do these lenses work? And why are they becoming one of the most widely discussed tools in the management of childhood myopia?

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Hard Contact Lenses vs RGP Lenses: Are They the Same?

Are hard contact lenses and rigid gas-permeable lenses the same? The answer is… yes and no.

Today, if someone says they wear “hard contact lenses,” they’re most likely talking about rigid gas permeable (RGP) lenses. These are hard (or rigid) contact lenses that allow oxygen to pass through them. Or, in other words, they are “gas permeable.”

The terms are now used so interchangeably that they’ve effectively become synonymous. However, technically, they’re not the same thing. While most modern hard contact lenses are RGP lenses, the original hard contacts were something quite different.

Keep reading to find out how the original hard contacts evolved into the RGP lenses used today, and how that evolution changed contact lens technology forever. 

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