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Updated: Jun 29, 2025

Quantification of Oculomotor Responses and Accommodation Through Instrumentation and Analysis Toolboxes
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Peripheral Refraction Using Ancillary Retinoscope Component (P-ARC).

Swapnil Thakur1, Rakesh Maldoddi1, Manogna Vangipuram2

  • 1Myopia Research Lab - Prof. Brien Holden Eye Research Centre, Brien Holden Institute of Optometry and Vision Sciences, LV Prasad Eye Institute, Hyderabad, India.

Translational Vision Science & Technology
|April 3, 2024
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Summary
This summary is machine-generated.

Peripheral refraction using the ancillary retinoscope component (P-ARC) closely matches open-field autorefractor measurements. This retinoscope technique shows promise for identifying peripheral refraction patterns in clinical settings.

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Area of Science:

  • Ophthalmology
  • Optometry
  • Vision Science

Background:

  • Accurate peripheral refraction is crucial for understanding refractive error progression.
  • Assessing peripheral refraction traditionally requires specialized equipment like open-field autorefractors.
  • Developing accessible methods for peripheral refraction measurement is an ongoing clinical need.

Purpose of the Study:

  • To evaluate the agreement between retinoscope-based peripheral refraction techniques and a criterion standard open-field autorefractor.
  • To determine the clinical utility of a novel retinoscope component for peripheral refraction measurement.

Main Methods:

  • Fifty young adults underwent noncycloplegic central and peripheral refraction measurements at 22° temporal (T22°) and nasal (N22°) eccentricities.
  • Peripheral refraction was assessed using three techniques: peripheral refraction using ancillary retinoscope component (P-ARC), retinoscopy with eye rotation, and an open-field autorefractor.
  • Agreement between retinoscopy techniques and the open-field autorefractor was statistically analyzed.

Main Results:

  • The P-ARC technique demonstrated comparable results to the open-field autorefractor at both T22° (+0.11 D ± 1.20 D) and N22° (+0.13 D ± 1.16 D) eccentricities.
  • Retinoscopy with eye rotation showed significant differences compared to the autorefractor at T22° (+0.30 D ± 1.26 D) but agreed at N22° (+0.14 D ± 1.16 D).
  • Examiners successfully identified relative peripheral hyperopia in 77% of participants using these retinoscopy methods.

Conclusions:

  • Peripheral refraction measurement using the P-ARC retinoscope component shows good agreement with open-field autorefraction.
  • Retinoscopy-based peripheral refraction techniques, particularly P-ARC, offer a viable approach for estimating and identifying peripheral refraction patterns in clinical practice.
  • These findings support the potential of P-ARC for effective myopia management by enabling practitioners to assess peripheral refraction.