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Related Experiment Video

Updated: Jan 23, 2026

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Effect of high-order aberrations on pattern-reversal visual evoked potentials.

Yan-Rong Yang1, Jun-Lei Zhao2, Fei Xiao2

  • 1College of Ophthalmology, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China.

Vision Research
|June 18, 2019
PubMed
Summary

High-order aberrations (HOAs) significantly alter pattern-reversal visual evoked potentials (PR-VEPs). Correcting HOAs using adaptive optics (AO) improves PR-VEP amplitude, suggesting HOA correction is crucial for accurate VEP testing.

Keywords:
Active or adaptive opticsHigh-order aberrationsOphthalmic optics and devicesVisual evoked potential

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Area of Science:

  • Ophthalmology
  • Neuroscience
  • Vision Science

Background:

  • High-order aberrations (HOAs) affect visual quality and can influence electrophysiological measures.
  • Pattern-reversal visual evoked potentials (PR-VEPs) are used to assess visual pathway function.

Purpose of the Study:

  • To investigate the impact of HOAs on PR-VEPs.
  • To determine if correcting HOAs with adaptive optics (AO) alters PR-VEP measurements.

Main Methods:

  • PR-VEPs were recorded from 12 subjects with HOAs both present and corrected using an AO system.
  • VEPs were measured at various spatial frequencies (1-16 cycles per degree) in the dominant eye.

Main Results:

  • HOA correction led to statistically significant increases in the amplitude of the P1 wave (1-16 cpd, except 2 cpd) and the N2 wave (12 and 16 cpd).
  • These findings demonstrate that HOAs contribute to alterations in PR-VEP amplitudes.

Conclusions:

  • HOAs significantly affect PR-VEP measurements.
  • Correcting HOAs is recommended for accurate and reliable PR-VEP testing.
  • AO technology can be utilized to refine VEP analysis.