Rigid gas‑permeable lenses are small, firm contact lenses that allow oxygen to pass through to the cornea. They provide sharp vision and are durable, though adaptation takes time.
Features
Because they retain their shape, these lenses can correct higher degrees of astigmatism and irregular corneal surfaces more effectively than many soft lenses. They are custom‑made for each eye and can last for years with proper care.
- Initial comfort is lower than with soft lenses, but improves with consistent wear
- Require specific cleaning and conditioning solutions
- More resistant to deposit build‑up and tearing
- May be dislodged more easily during contact sports
Who Might Benefit
Rigid lenses suit people seeking very crisp vision, those with keratoconus or post‑surgical corneas, and some with high prescriptions. Fitting and follow‑up are specialised.
- Daily wear time is increased gradually during the adaptation period
- Regular reviews ensure the cornea remains healthy and the fit stable
- Back‑up spectacles are important for times when lenses cannot be worn
- Discuss lifestyle and occupational needs before choosing this option
