Do GP wearers tend to purchase glasses more frequently than soft contact lens wearers?

Do GP wearers tend to purchase glasses more frequently than soft contact lens wearers?

• A. No
• B. Not sure
• C. Only sometimes
• D. Yes

Answer: (D)

Rigid gas-permeable lenses can temporarily reshape the surface of the cornea as you wear them. This molding changes the cornea’s curvature, which directly alters refractive power. When you’re not wearing the lenses, the cornea may revert toward its original shape, but during or after long-term GP wear the refraction measured for glasses can shift. Since soft lenses don’t exert the same steady molding effect, their impact on the corneal shape—and thus on the spectacle prescription—is typically smaller. Because GP wearers are more prone to these corneal changes, they often find they need to refresh their glasses prescription more frequently to match the current refractive state.

Rigid gas-permeable lenses can temporarily reshape the surface of the cornea as you wear them. This molding changes the cornea’s curvature, which directly alters refractive power. When you’re not wearing the lenses, the cornea may revert toward its original shape, but during or after long-term GP wear the refraction measured for glasses can shift. Since soft lenses don’t exert the same steady molding effect, their impact on the corneal shape—and thus on the spectacle prescription—is typically smaller. Because GP wearers are more prone to these corneal changes, they often find they need to refresh their glasses prescription more frequently to match the current refractive state.