Rigid Gas Permeable contact lenses are used to correct many eye refractive defects that soft lenses are not suitable.
These lenses require precise fitting to give you maximum comfort.
Common eye conditions that require this lens modality are:
Gas Permeable Lens on the Eye
1) Astigmatism
2) Keratoconus or irregular astigmatism
3) Orthokeratology or corneal reshaping to correct myopia
See the following web site for more details:
