Objective:

To demonstrate the effectiveness of wavefront-corrected scleral lenses in improving visual acuity in a patient with corneal ectasia, highlighting the significance of addressing residual higher-order aberrations.

Key Findings:

• Wavefront-corrected scleral lenses significantly improved visual acuity and reduced residual HOAs.
• The patient initially experienced poor vision with standard scleral lenses due to residual positive vertical coma.
• Customized wavefront correction was essential for achieving optimal visual function, and neural adaptation may be necessary for subjective satisfaction.

Interpretation:

This case illustrates the critical role of customized wavefront optics in addressing residual HOAs in patients with corneal ectasia.

Limitations:

• Neural adaptation to wavefront correction may be necessary for subjective satisfaction.
• The study is based on a single case report, limiting generalizability and the understanding of neural adaptation effects.

Conclusion:

Customized wavefront-corrected scleral lenses can provide significant visual improvement for patients with corneal ectasia who have residual HOAs.