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Updated: May 7, 2026

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Accommodative responses under different stimulus conditions.

Huiling Lin1, Bai-chuan Jiang

  • 1*MS, MD †PhD School of Optometry & Ophthalmology, Wenzhou Medical College, Wenzhou, Zhejiang, People's Republic of China.

Optometry and Vision Science : Official Publication of the American Academy of Optometry
|October 15, 2013
PubMed
Summary
This summary is machine-generated.

The method and sequence of accommodative stimuli impact steady-state accommodative response curves. Accommodative error area (AEA) is recommended for evaluating accommodative stimulus response curve accuracy.

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Area of Science:

  • Ophthalmology
  • Vision Science
  • Optometry

Background:

  • Steady-state accommodative response is crucial for clear vision.
  • Factors influencing accommodative response accuracy require detailed investigation.

Purpose of the Study:

  • To investigate the effects of stimulus induction method and sequence on accommodative stimulus response curves (ASRCs).
  • To compare three metrics for evaluating ASRCs under varying stimulus conditions.

Main Methods:

  • ASRCs were measured in 10 emmetropes under six conditions.
  • Stimuli were induced using negative lenses, positive lenses, or a Badal stimulator.
  • Stimuli were presented in ascending and descending sequences.

Main Results:

  • Ascending stimulus sequences resulted in larger accommodative error than descending sequences with the Badal stimulator (p < 0.05).
  • Positive lenses yielded more accurate ASRCs than negative lenses or the Badal stimulator when using accommodative error area (AEA) or accommodative error index (AEI).
  • The slope of the ASRC did not show significant differences across methods.

Conclusions:

  • Both the method of inducing accommodative stimulus (AS) and its presentation sequence influence steady-state accommodative response.
  • Accommodative error area (AEA) is proposed as a reliable metric for assessing ASRC accuracy in future research.