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Related Experiment Video

Updated: Jun 5, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

[Target Z-axis optimized LASIK for 2 cases with decentered ablation].

Bing Liu¹, Xiangrong Wang, Haixia Ru

¹Department of Ophthalmology,General Hospital of the Air Force,Beijing 100142,China.

Yan Ke Xue Bao = Eye Science

|December 28, 2010

Summary

Target z-axis optimized LASIK effectively corrected decentered ablations in two patients, restoring the visual axis. This advanced laser vision correction technique improved uncorrected visual acuity to 1.2 in both eyes.

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Last Updated: Jun 5, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

Deep and Spatially Controlled Volume Ablations using a Two-Photon Microscope in the Zebrafish Gastrula

Deep and Spatially Controlled Volume Ablations using a Two-Photon Microscope in the Zebrafish Gastrula

Published on: July 15, 2021

Area of Science:

Ophthalmology
Refractive Surgery
Corneal Surgery

Background:

Decentered ablations following LASIK can compromise visual outcomes.
Restoring the pre-operative visual axis is crucial for successful refractive surgery.

Purpose of the Study:

To evaluate the efficacy of target z-axis optimized LASIK for correcting decentered ablations.
To report the outcomes of treating two patients with decentered ablation zones.

Main Methods:

Utilized LaserSight AstraPro2.2 Z software, a topography-guided custom ellipsoid ablation platform.
Performed LASIK with target z-axis optimization using a LaserSight SLX excimer laser.
Employed LaserSight AstraMax topography for diagnosing decentered ablation zones.

Main Results:

Pre-operative uncorrected visual acuity (UCVA) was 0.5, improving to 1.2 post-operatively.
Best spectacle-corrected visual acuities (BSCVA) were 1.0 and 0.8 pre-operatively.
Target z-axis microtranslation preserved corneal tissue and centered ablation zones on the visual axis, with stable results at follow-up.

Conclusions:

Target z-axis optimized LASIK is an effective method for correcting decentered ablations.
The LaserSight AstraPro Planner 2.2 Z software facilitates successful visual axis restoration.
This technique offers a viable solution for improving visual outcomes in patients with prior decentered LASIK.