Dynamic Refraction and Anterior Segment OCT Biometry During Accommodation

Overview

Journal Biomed Opt Express

Specialty Radiology

Date 2024 Jun 10

PMID 38855690

Authors

Heather Durkee

Marco Ruggeri

Leana Rohman

Siobhan Williams

Arthur Ho

Jean-Marie Parel

Fabrice Manns

Affiliations

Soon will be listed here.

Abstract

Accommodation is the process by which the eye changes focus. These changes are the result of changes to the shape of the crystalline lens. Few prior studies have quantified the relation between lens shape and ocular accommodation, primarily at discrete static accommodation states. We present an instrument that enables measurements of the relation between changes in lens shape and changes in optical power continuously during accommodation. The system combines an autorefractor to measure ocular power, a visual fixation target to stimulate accommodation, and an optical coherence tomography (OCT) system to image the anterior segment and measure ocular distances. Measurements of ocular dimensions and refraction acquired dynamically on three human subjects are presented. The individual accommodative responses are analyzed to correlate the ocular power changes with changes in ocular dimensions.

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