![Progression of keratoconus in patients wearing pancorneal toric edge rigid gas-permeable contact lenses. | Semantic Scholar Progression of keratoconus in patients wearing pancorneal toric edge rigid gas-permeable contact lenses. | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/95d341309b22e4e038ac93b0558878136bd7d76c/3-Table1-1.png)
Progression of keratoconus in patients wearing pancorneal toric edge rigid gas-permeable contact lenses. | Semantic Scholar
Vision Infinity Optometrist - Rigid Gas Permeable Contact Lenses Rigid Gas Permeable lenses (RGP) are a type of semi hard contact lens that allow more oxygen to pass through to the eye.
![External appearance of each material in case 1. Abbreviations: RGP,... | Download Scientific Diagram External appearance of each material in case 1. Abbreviations: RGP,... | Download Scientific Diagram](https://www.researchgate.net/publication/230833681/figure/fig1/AS:202929278590986@1425393518610/External-appearance-of-each-material-in-case-1-Abbreviations-RGP-rigid-gas-permeable.png)