Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
2.3
Journals
Vision
Special Issues
Effects of Optical and Behavioral Factors on the Ocular Accommodation...
share announcement

Effects of Optical and Behavioral Factors on the Ocular Accommodation Response

A special issue of Vision (ISSN 2411-5150).

Deadline for manuscript submissions: 31 January 2025 | Viewed by 2807

Special Issue Editors

Dr. Beatriz Redondo Cabrera

E-Mail Website
Guest Editor
Department of Optics, University of Granada, Granada, Spain
Interests: ocular accommodation; near triad; visual ergonomics; occupational optometry; visual performance; visual fatigue; digital eye strain; sport vision; neurological disorders
Dr. Niall Hynes

E-Mail Website
Guest Editor
Centre for Vision across the Life Span, School of Applied Science, University of Huddersfield, Huddersfield, UK
Interests: sports vision; ocular accommodation; myopia; digital eye strain

Special Issue Information

Dear Colleagues,

The accommodative response is a relevant ability since it allows one to see clearly at different distances, and thus, it is of vital importance in numerous contexts. Accommodation can be stimulated from an alteration in the composition of the retinal image (optical factors), but also, it can be independent of the retinal image (behavioral factors). The optical factors are primarily associated with the characteristics of the visual stimulus, and they are part of a closed-loop system (e.g., blur), while behavioral factors are more influenced by task demands with a cognitive component, as well as individual cognitive and motivational characteristics. This Special Issue aims to collect articles focused on the effects of a variety of optical and behavioral factors on the accommodative response and its consequences in applied contexts, especially in activities performed at near working distances (e.g., computer work, reading, etc.). We are also keen to include articles that aim to elucidate the possible mechanisms underlying the influence of central nervous system alterations on ocular accommodation. Review articles, original research papers and case studies are all welcome.

Dr. Beatriz Redondo Cabrera
Dr. Niall Hynes
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Vision is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • ocular accommodation
  • accommodative microfluctuations
  • cognitive effort
  • attention
  • fatigue
  • near work
  • visual performance

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue polices can be found here.

Published Papers (2 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

12 pages, 425 KiB  
Article
Comparison of Four Methods for Measuring Heterophoria and Accommodative Convergence over Accommodation Ratio
by Noelia Nores-Palmas, Veronica Noya-Padin, Eva Yebra-Pimentel, Maria Jesus Giraldez and Hugo Pena-Verdeal
Vision 2024, 8(4), 62; https://doi.org/10.3390/vision8040062 - 18 Oct 2024
Viewed by 983
Abstract
The study aimed to assess the agreement between OptoTab SERIES, alternating Cover Test, Modified Thorington test, and Von Graefe method in measuring heterophoria and accommodative convergence over accommodation (AC/A) ratio. In an initial step, heterophoria was assessed at both distance and near in [...] Read more.
The study aimed to assess the agreement between OptoTab SERIES, alternating Cover Test, Modified Thorington test, and Von Graefe method in measuring heterophoria and accommodative convergence over accommodation (AC/A) ratio. In an initial step, heterophoria was assessed at both distance and near in a cohort of 76 healthy young volunteers using the previously described tests. Subsequently, to determine the AC/A ratio, near-vision measurements were repeated with +1.00 D and −1.00 D lenses. All tests were performed in a randomized order across participants under consistent conditions. Significant differences were found between the Modified Thorington test and all other tests at distance (Wilcoxon test, all p ≤ 0.001) and between Von Graefe and all other tests at near (Wilcoxon test, all p ≤ 0.005). Regarding the AC/A ratio, significant differences were observed between all methods in +1.00 D AC/A ratio, except for the Modified Thorington test vs. the alternating Cover Test (Wilcoxon test, p = 0.024). In the −1.00 D AC/A ratio, differences were observed between OptoTab POCKET and all the other tests (Wilcoxon test, all p ≤ 0.001). The results indicate that all methods are interchangeable except the Modified Thorington test at distance and Von Graefe at near. For the AC/A ratio, only the Modified Thorington test is interchangeable with the alternating Cover Test using +1.00 D lenses and all are interchangeable using −1.00 D lenses except OptoTab POCKET. Full article
(This article belongs to the Special Issue Effects of Optical and Behavioral Factors on the Ocular Accommodation Response)
►▼ Show Figures

Figure 1

12 pages, 3448 KiB  
Article
The Effect of the Zonular Fiber Angle of Insertion on Accommodation
by Liying Feng, Barbara Pierscionek, Henk Weeber, Carmen Canovas Vidal and Jos J. Rozema
Vision 2024, 8(3), 45; https://doi.org/10.3390/vision8030045 - 23 Jul 2024
Viewed by 1104
Abstract
Purpose: With age, there is an anterior shift of the ciliary body in the eye, which alters the angle of zonular insertion in older eyes compared with younger eyes. This study aims to simulate lens accommodation with different zonular angles to consider the [...] Read more.
Purpose: With age, there is an anterior shift of the ciliary body in the eye, which alters the angle of zonular insertion in older eyes compared with younger eyes. This study aims to simulate lens accommodation with different zonular angles to consider the influence of zonular position on lens accommodative capacity. Methods: Models were constructed based on lenses aged 11, 29, and 45 years using a 2D axisymmetric structure that included a capsule, cortex, nucleus, and zonular fibers. The different zonular fibers were simulated by changing the position of the point where the zonular fibers connect to the ciliary body. The effect of the different zonular fiber insertion angles on the model shape and optical power was analyzed. Results: The models show that smaller angles made by zonular fibers to the surface of the lens lead to larger optical power changes with simulated stretching. When the models were stretched, and when varying the zonule angles, the optical power of the 11-, 29-, and 45-year-old models changed up to 0.17 D, 0.24 D, and 0.30 D, respectively. The effect of zonular angles on the anterior radius of curvature of the anterior surface varied by 0.29 mm, 0.23 mm, and 0.25 mm for the 11-, 29-, and 45-year-old models, respectively. Conclusions: Larger zonular fiber insertion angles cause smaller deformation and less accommodative change, while parallel zonules induce the largest change in lens shape. Full article
(This article belongs to the Special Issue Effects of Optical and Behavioral Factors on the Ocular Accommodation Response)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-2
Back to TopTop