Quantification of scleral changes during dynamic accommodation.

Lens, Crystalline / physiology Sclera Tomography, Optical Coherence / methods Accommodation, Ocular Ciliary Body

Journal

Experimental eye research
ISSN: 1096-0007
Titre abrégé: Exp Eye Res
Pays: England
ID NLM: 0370707

Informations de publication

Date de publication:
05 2023
Historique:
received: 02 09 2022
revised: 11 01 2023
accepted: 16 03 2023
medline: 28 4 2023
pubmed: 24 3 2023
entrez: 23 3 2023
Statut: ppublish

Résumé

The mechanics of accommodation is a complex process that involves multiple intraocular ocular structures. Recent studies suggest that there is deformation of the sclera during accommodation that may also play a role in accommodation, influencing ciliary muscle contraction and contributing to the accommodative response. However, the type and magnitude of the deformations measured varies significantly across studies. We present high-resolution synchronous OCT measurements of the anterior sclera contour and thickness and lens thickness acquired in real-time during accommodative responses to 4D step stimuli. The lens thickness was used as an assessment of objective accommodation. No changes in nasal and temporal anterior scleral contour and scleral thickness were found during accommodation within the precision of our measurements. Our results demonstrate that there are no significant scleral deformations during accommodation.

Identifiants

DOI: 10.1016/j.exer.2023.109441 PMID: 36958428
pubmed: 36958428
pii: S0014-4835(23)00062-3
doi: 10.1016/j.exer.2023.109441
pii:
doi:

Types de publication

Journal Article Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

109441

Subventions

Organisme : NEI NIH HHS
ID : R01 EY014225
Pays : United States

Informations de copyright

Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.

Déclaration de conflit d'intérêts

Declaration of competing interest The authors declare no conflicts of interest.

Auteurs

Iulen Cabeza-Gil (I)

Aragón Institute of Engineering Research (i3A), University of Zaragoza, Spain. Electronic address: iulen@unizar.es.

Fabrice Manns (F)

Ophthalmic Biophysics Center, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA; Department of Biomedical Engineering, University of Miami College of Engineering, Coral Gables, FL, USA.

Begoña Calvo (B)

Aragón Institute of Engineering Research (i3A), University of Zaragoza, Spain; Bioengineering, Biomaterials and Nanomedicine Networking Biomedical Research Centre (CIBER-BBN), Zaragoza, Spain.

Marco Ruggeri (M)

Ophthalmic Biophysics Center, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA; Department of Biomedical Engineering, University of Miami College of Engineering, Coral Gables, FL, USA. Electronic address: MRuggeri@med.miami.edu.

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Classifications MeSH

questionsmedicales.fr › Organes des sens › Oeil › Pôle antérieur du bulbe oculaire › Cristallin › Quantification of scleral changes during...
questionsmedicales.fr › Organes des sens › Oeil › Sclère › Quantification of scleral changes during...
questionsmedicales.fr › Techniques d'investigation › Imagerie optique › Tomographie optique › Tomographie par cohérence optique › Quantification of scleral changes during...
questionsmedicales.fr › Phénomènes physiologiques oculaires › Accommodation oculaire › Quantification of scleral changes during...
questionsmedicales.fr › Organes des sens › Oeil › Uvée › Corps ciliaire › Quantification of scleral changes during...