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Updated: Aug 5, 2025
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Quantification of Oculomotor Responses and Accommodation Through Instrumentation and Analysis Toolboxes
Published on: March 3, 2023
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Central and Peripheral Ocular High-Order Aberrations and Their Relationship with Accommodation and Refractive Error:
Jessica Gomes1, Kishor Sapkota1, Sandra Franco1
1Centre of Physics, University of Minho, 4710-057 Braga, Portugal.
Vision (Basel, Switzerland)
|March 28, 2023
Summary
High-order aberrations (HOAs) change with accommodation, pupil size, and age, impacting image quality. These optical defects are linked to refractive error progression, particularly myopia.
Area of Science:
- Ophthalmology
- Optical Engineering
- Physiological Optics
Background:
- High-order aberrations (HOAs) are optical defects affecting visual quality.
- HOAs are dynamic, varying with pupil diameter, age, and accommodation.
- Lens shape and position changes are primary drivers of aberrations during accommodation.
Purpose of the Study:
- To investigate the relationship between high-order aberrations and accommodation.
- To explore the influence of refractive error on central and peripheral HOAs during accommodation.
- To understand the role of HOAs in refractive error progression, especially myopia.
Main Methods:
- Ophthalmic aberrometry to measure central and peripheral HOAs.
- Dynamic measurements during accommodative tasks.
- Analysis of HOA changes in relation to refractive error status.
Main Results:
- Primary spherical aberration (Z(4.0)) shows a strong correlation with accommodation.
- Central and peripheral HOAs exhibit distinct variations based on refractive error.
- Accommodative HOA changes differ between refractive error groups.
Conclusions:
- HOAs are closely linked to the accommodative system and influence its accuracy.
- Variations in HOAs, particularly in the periphery, may impact eye growth and myopia progression.
- Understanding HOA dynamics is crucial for managing refractive errors and myopia.
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