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Related Experiment Video

Updated: May 20, 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

Monocular amblyopia and higher order aberrations.

Stephen J Vincent1, Michael J Collins, Scott A Read

  • 1Contact Lens and Visual Optics Laboratory, School of Optometry, Queensland University of Technology, Brisbane, Queensland, Australia. sj.vincent@qut.edu.au

Vision Research
|July 7, 2012
PubMed
Summary
This summary is machine-generated.

Monocular amblyopia causes differences in higher-order aberrations between eyes, varying by amblyopia type. Asymmetric visual input during development may lead to these ocular aberrations.

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Area of Science:

  • Ophthalmology
  • Optometry
  • Vision Science

Background:

  • Monocular amblyopia, a developmental vision disorder, leads to reduced visual acuity in one eye.
  • Higher-order aberrations (HOAs) contribute to visual quality and can be affected by ocular development.
  • Understanding interocular differences in HOAs is crucial for amblyopia management.

Purpose of the Study:

  • To compare corneal and total higher-order aberrations between fellow eyes in monocular amblyopia.
  • To investigate the relationship between ocular biometry, anisometropia, and HOAs.
  • To assess accommodative responses and HOA changes during accommodation in amblyopic eyes.

Main Methods:

  • Recruited 19 subjects with monocular amblyopia (refractive and strabismic).
  • Collected biometric (axial length) and optical measurements (corneal topography, total HOAs) from both eyes.
  • Measured HOAs during accommodation in a subgroup of 11 subjects.

Main Results:

  • Amblyopic eyes were shorter and more hyperopic; axial length difference correlated with anisometropia and amblyopia severity.
  • Significant interocular differences in HOAs were found, varying by amblyopia type (refractive vs. strabismic).
  • Refractive amblyopes showed higher 4th-order corneal aberrations; strabismic amblyopes had higher trefoil aberrations in the amblyopic eye. Amblyopic eyes exhibited greater accommodative lag.

Conclusions:

  • Asymmetric visual experience during development is linked to asymmetries in higher-order aberrations.
  • HOA differences are dependent on the type of amblyopia and may correlate with anisometropia.
  • These findings highlight the impact of early visual development on ocular optics.