5 Key Takeaways

• 1

  Refraction traditionally focuses on correcting lower-order aberrations (LOAs) like defocus and regular astigmatism.

• 2

  Higher-order aberrations (HOAs) significantly impact visual quality, causing complaints like glare and poor night vision despite 20/20 acuity.

• 3

  Wavefront aberrometry can identify elevated HOAs, but its clinical application is limited, complicating treatment options.

• 4

  Rigid gas permeable and scleral lenses can effectively mask corneal irregularities and reduce HOAs, improving visual quality.

• 5

  Understanding aberrations helps clinicians select appropriate lens modalities and set realistic patient expectations for visual outcomes.