What is the primary benefit of using rigid gas-permeable lenses over soft lenses?

The primary benefit of using rigid gas-permeable (RGP) lenses over soft lenses is indeed related to better durability. RGP lenses are made from firm materials that can withstand scratches and maintain their shape more effectively than soft lenses. This durability allows RGP lenses to last longer with proper care, minimizing the need for frequent replacements.

Additionally, their rigid structure provides superior visual acuity, particularly for individuals with astigmatism or other refractive errors. While RGP lenses may initially be less comfortable than soft lenses, many users find that the improved vision and longevity compensate for this. Overall, the combination of durability and enhanced visual performance makes RGP lenses a favorable choice for many patients.

Soft lenses, on the other hand, while generally more comfortable for immediate wear and easier to adapt to initially, do not match the durability and lifespan of RGP lenses.