5 Key Takeaways

• 1

  Orthokeratology (ortho-k) is a reversible, nonsurgical option for vision correction that effectively slows myopia progression.

• 2

  Ortho-k lenses create myopic defocus, which is crucial in reducing axial elongation and slowing myopia progression by about 50%.

• 3

  Proper lens centration is essential for ortho-k effectiveness, ensuring symmetric corneal reshaping and optimal myopic defocus.

• 4

  The back optic zone diameter (BOZD) of ortho-k lenses influences treatment zone size, impacting myopia control and visual outcomes.

• 5

  Candidates for ortho-k are typically those with low to moderate myopia and astigmatism, as higher refractive errors may lead to reduced vision.