How safe is ortho-k? Is it permanent like laser eye surgery or LASIK?
- Is it safe to sleep while wearing contact Lenses?
The rigid OrthoKeratology lenses are made from materials that allow sufficient oxygen transmission to make overnight wear safe. Unlike regular contact lenses, Ortho-K lenses enable the eyes to breathe even when the eyelids are closed. Anthony Liska chooses to use Paragon CRT lens which are approved by the United States FDA for overnight wear.
Contact lens corneal reshaping is not a new concept, and was started over 70 years ago. Modern technology makes ortho-k more accurate with safer lenses which are proven to work and are proven safe for overnight wear.
We recommend that the lenses be replaced every twelve months to maintain hygiene and structural accuracy of your ortho-k lens.
As with all contact lenses, regular check-ups are important. The actual parameters of the orthokeratology contact lens need to be worked out extremely precisely for the correct change in surface power to occur.
This is why contact lens fitting process can take a few visits to complete and these fitting costs are included in the total Ortho-K fee.