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Related Experiment Video

Updated: Jul 17, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile
05:46

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

High-order aberrations and preoperative associated factors.

Luis E Fernández de Castro1, Helga P Sandoval, Luanna R Bartholomew

  • 1Magill Research Center for Vision Correction, Storm Eye Institute, Medical University of South Carolina, Charleston, SC 29425, USA. decastro@musc.edu

Acta Ophthalmologica Scandinavica
|January 25, 2007
PubMed
Summary

Preoperative factors like age over 40, higher keratometry, myopia, and pupil size are linked to high-order aberrations. These findings suggest personalized laser treatments are crucial for optimal outcomes.

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Area of Science:

  • Ophthalmology
  • Optometry
  • Vision Science

Background:

  • High-order aberrations significantly impact visual quality.
  • Understanding preoperative predictors is essential for personalized ophthalmic treatments.

Purpose of the Study:

  • To identify preoperative factors associated with high-order ocular aberrations.
  • To inform customized laser treatment strategies.

Main Methods:

  • A cohort of 93 eyes from 52 subjects was analyzed.
  • Hartmann-Shack aberrometry was used for preoperative evaluation.
  • Key parameters included age, refraction, pupil size, keratometry, and anterior chamber depth.

Main Results:

  • Age (>= 40 years), higher keratometry, myopia (>= -6.1 D), and larger pupil size correlated with high-order aberrations.

Related Experiment Videos

Last Updated: Jul 17, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile
05:46

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

  • Anterior chamber depth, white-to-white measurements, intraocular pressure, and tear secretion did not show significant correlation.

    • Conclusions:

    • Ocular wavefront aberrations exhibit significant inter-individual variability.
    • Patient-specific characteristics should guide the customization of laser treatment profiles for optimal aberration correction.