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
Selected Papers from the 4th International Symposium on Visual Physiology,...
share announcement

Selected Papers from the 4th International Symposium on Visual Physiology, Environment, and Perception (VisPEP 2024)

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

Deadline for manuscript submissions: closed (30 June 2024) | Viewed by 4234

Special Issue Editors

Dr. Jacek Pniewski

E-Mail Website
Guest Editor
Photonics Department, University of Warsaw, Warsaw, Poland
Interests: optometry; visual optics; nano- and micro-optics; Fourier optics; optical and digital image processing
Dr. Aiga Svede

E-Mail
Guest Editor
Department of Optometry and Vision Science, University of Latvia, Riga, Latvia
Interests: binocular vision; fixation disparity; eye movements; vision training; vision development
Dr. Tatjana Pladere

E-Mail
Guest Editor
Department of Optometry and Vision Science, University of Latvia, Riga, Latvia
Interests: virtual and augmented reality; visual ergonomics; 3D vision; depth perception

Special Issue Information

Dear Colleagues,

The International Symposium on Visual Physiology, Environment and Perception (VisPEP) is a collaborative initiative among European scientists aiming to enhance the visibility of vision science in the region. The main aim of the Symposium is to foster collaboration and communication among eye care professionals and researchers working in various domains of vision science. This year, the event (the VisPEP 2024) will be hosted by the University of Warsaw, Poland, from 15 to 17 March 2024.

The symposium will be organized based on themes, including clinical studies in optometry (clinical cases, diagnostics and treatment), visual physiology (accommodation, binocular and monocular eye movements, pupil physiology), environment (lighting, visual fatigue, technology of visual stimuli) and visual perception (visual attention, color perception, spatial vision).

This Special Issue provides a platform for publishing contributions that highlight the work presented at the Symposium.

Dr. Jacek Pniewski
Dr. Aiga Svede
Dr. Tatjana Pladere
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

  • clinical optometry
  • binocular vision
  • ocular accommodation
  • visual ergonomics
  • visual fatigue
  • vision training
  • color perception
  • depth perception

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 (6 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

11 pages, 1897 KiB  
Article
Colour Vision Changes across Lifespan: Insights from FM100 and CAD Tests
by Renārs Trukša, Sergejs Fomins, Zane Jansone-Langina and Laura Tenisa
Vision 2024, 8(3), 53; https://doi.org/10.3390/vision8030053 - 6 Sep 2024
Viewed by 258
Abstract
(1) Background: in this research study, colour vision was evaluated in individuals aged 19 to 70 years with and without red–green colour vision disorders. (2) Methods: study participant colour vision was assessed with anomaloscope, HRR, FM100 hue, and CAD tests. (3) Results: No [...] Read more.
(1) Background: in this research study, colour vision was evaluated in individuals aged 19 to 70 years with and without red–green colour vision disorders. (2) Methods: study participant colour vision was assessed with anomaloscope, HRR, FM100 hue, and CAD tests. (3) Results: No significant correlation was found between participant age and chromatic sensitivity of the red–green colour opponent channel. However, a decrease in blue–yellow colour opponent channel chromatic sensitivity was confirmed with the FM100 hue test and CAD test. Analysis of FM100 hue test error scores across age groups revealed a decline in chromatic sensitivity in the short-wave region of visible light with increasing age. Comparison of the colour-deficient individual results of the CAD and anomaloscope tests confirmed that CAD test sensitivity and specificity reaches 100%. However, some individuals with deutan-type deficits were misclassified as having protan-type deficits. This study confirmed the effectiveness of the FM100 test in identifying individuals with moderate to severe colour vision deficits, with sensitivity and specificity rates of 81.25% and 95.38%. (4) Conclusions: It was found that the FM100 hue test effectively identifies individuals with moderate and severe red–green colour vision deficiencies. On the other hand, individuals with mild colour vision deficiencies may go undetected with the FM100 hue test. Full article
(This article belongs to the Special Issue Selected Papers from the 4th International Symposium on Visual Physiology, Environment, and Perception (VisPEP 2024))
►▼ Show Figures

Figure 1

13 pages, 1663 KiB  
Article
Objective Refraction Status before and after Cycloplegia: From Childhood to Young Adulthood
by Karola Panke and Megija Jorova
Vision 2024, 8(3), 51; https://doi.org/10.3390/vision8030051 - 30 Aug 2024
Viewed by 383
Abstract
This study aimed to evaluate the clinical information revealed after cycloplegia and assess how age and non-cycloplegic refractive status influence the classification of types of refractive error, as well as the relationship between age and cycloplegia-induced changes in the power of refractive errors. [...] Read more.
This study aimed to evaluate the clinical information revealed after cycloplegia and assess how age and non-cycloplegic refractive status influence the classification of types of refractive error, as well as the relationship between age and cycloplegia-induced changes in the power of refractive errors. We analysed the records of 472 non-population-based ophthalmology practice patients aged 3–28 years (mean ± SD: 9.1 ± 4.6). Cycloplegia was induced with one drop of cyclopentolate 1% in each eye, and eye refraction was measured 30 ± 5 min later using an objective autorefractometer. Cycloplegia induced a clinically significant (≥0.50 D) hyperopic shift in the spherical equivalent of 60.2% of participants and a myopic shift in 1%, resulting in a 34.1% increase in the frequency of participants with hyperopia, while the frequency of those with myopia and emmetropia decreased by 5.5% and 23.3%, respectively. The average spherical equivalent difference (mean ± SD) induced by cycloplegia was 0.72 ± 0.73 D, with the highest difference observed in the 3–5 years age group (1.18 ± 0.85 D). The differences in astigmatism power (p = 0.84) and astigmatism axis (p = 0.97) between non-cycloplegic and cycloplegic conditions were not statistically significant. Full article
(This article belongs to the Special Issue Selected Papers from the 4th International Symposium on Visual Physiology, Environment, and Perception (VisPEP 2024))
►▼ Show Figures

Figure 1

25 pages, 8852 KiB  
Article
Diabetic Retinopathy Features Segmentation without Coding Experience with Computer Vision Models YOLOv8 and YOLOv9
by Nicola Rizzieri, Luca Dall’Asta and Maris Ozoliņš
Vision 2024, 8(3), 48; https://doi.org/10.3390/vision8030048 - 23 Aug 2024
Viewed by 564
Abstract
Computer vision is a powerful tool in medical image analysis, supporting the early detection and classification of eye diseases. Diabetic retinopathy (DR), a severe eye disease secondary to diabetes, accompanies several early signs of eye-threatening conditions, such as microaneurysms (MAs), hemorrhages (HEMOs), and [...] Read more.
Computer vision is a powerful tool in medical image analysis, supporting the early detection and classification of eye diseases. Diabetic retinopathy (DR), a severe eye disease secondary to diabetes, accompanies several early signs of eye-threatening conditions, such as microaneurysms (MAs), hemorrhages (HEMOs), and exudates (EXs), which have been widely studied and targeted as objects to be detected by computer vision models. In this work, we tested the performances of the state-of-the-art YOLOv8 and YOLOv9 architectures on DR fundus features segmentation without coding experience or a programming background. We took one hundred DR images from the public MESSIDOR database, manually labelled and prepared them for pixel segmentation, and tested the detection abilities of different model variants. We increased the diversity of the training sample by data augmentation, including tiling, flipping, and rotating the fundus images. The proposed approaches reached an acceptable mean average precision (mAP) in detecting DR lesions such as MA, HEMO, and EX, as well as a hallmark of the posterior pole of the eye, such as the optic disc. We compared our results with related works in the literature involving different neural networks. Our results are promising, but far from being ready for implementation into clinical practice. Accurate lesion detection is mandatory to ensure early and correct diagnoses. Future works will investigate lesion detection further, especially MA segmentation, with improved extraction techniques, image pre-processing, and standardized datasets. Full article
(This article belongs to the Special Issue Selected Papers from the 4th International Symposium on Visual Physiology, Environment, and Perception (VisPEP 2024))
►▼ Show Figures

Figure 1

9 pages, 841 KiB  
Article
The Computerized Developmental Eye Movement (DEM) Test: Normative Data for School-Aged Children
by Daniela Protasevica, Evita Kassaliete, Anete Klavinska, Madara Alecka, Asnate Berzina, Viktorija Goliskina, Marija Koleda, Rita Mikelsone, Elizabete Ozola, Tomass Ruza, Evita Serpa, Aiga Svede, Daniela Toloka, Sofija Vasiljeva, Liva Volberga, Ilze Ceple and Gunta Krumina
Vision 2024, 8(3), 47; https://doi.org/10.3390/vision8030047 - 9 Aug 2024
Viewed by 468
Abstract
The aim of the study was to determine the normative data of the computerized DEM test for school-age children in Latvia. The study analyzed data on the performance (test execution time, duration, number of fixations, and number of errors) of 291 children while [...] Read more.
The aim of the study was to determine the normative data of the computerized DEM test for school-age children in Latvia. The study analyzed data on the performance (test execution time, duration, number of fixations, and number of errors) of 291 children while completing the computerized DEM test. Eye movement fixations were recorded with a Tobii Pro Fusion video-oculograph (250 Hz). According to the results of the study, the performance of the computerized DEM test is 77 %. For the study, 1 SD (one standard deviation) was chosen as a criterion for determining test norms. In the study, the norms of the computerized DEM test in Latvia were developed in class groups—from 1st to 6th grade (aged 7 to 12 years), the results were summarized in a table as the minimum performance values of the computerized DEM test. Full article
(This article belongs to the Special Issue Selected Papers from the 4th International Symposium on Visual Physiology, Environment, and Perception (VisPEP 2024))
►▼ Show Figures

Figure 1

22 pages, 1843 KiB  
Article
Application of a New Device for Vision Relaxation in Computer Users
by Aiga Svede, Svetlana Semjonova, Angelina Ganebnaya, Liga Puhova, Kulsum Fatima Baig, Alina Kucika, Gatis Ikaunieks, Karola Panke and Dmitry Gromov
Vision 2024, 8(3), 40; https://doi.org/10.3390/vision8030040 - 23 Jun 2024
Viewed by 913
Abstract
This study aims to explore the potential of a novel EYE ROLL device designed to facilitate guided vision relaxation exercises in an open space. A prospective study was performed on 89 participants who perform screenwork for at least four hours daily. All participants [...] Read more.
This study aims to explore the potential of a novel EYE ROLL device designed to facilitate guided vision relaxation exercises in an open space. A prospective study was performed on 89 participants who perform screenwork for at least four hours daily. All participants were randomly divided into three groups: a Control group with no exercising, a Manual group undertook manual vision relax ation exercises, and an Eyeroll group engaged in EYE ROLL device-assisted vision relaxation exercises. Each participant underwent three evaluations (an initial baseline assessment, a 4-week follow-up, and an 8-week follow-up) with four assessment tools: a comprehensive vision examination, an in-depth questionnaire, saccadic eye movement recordings, and objective accommodation measurements. There was a statistically significant decrease (35% and above) in complaint scores at the 4-week follow-up in both training groups. Although statistically insignificant, complaints continued to decrease after an 8-week period. No significant changes were observed in clinical or objective accommodative parameters. Some variation of visual functions was observed in all groups due to repeated measures. Vision relaxation exercises combined with proper vision ergonomics and working habits can reduce asthenopic complaints. The EYE ROLL device presents a promising tool for integrating these exercises into the working environment. Full article
(This article belongs to the Special Issue Selected Papers from the 4th International Symposium on Visual Physiology, Environment, and Perception (VisPEP 2024))
►▼ Show Figures

Figure 1

9 pages, 541 KiB  
Article
Prevalence of Near-Vision-Related Symptoms in a University Population
by Jessica Gomes and Sandra Franco
Vision 2024, 8(2), 38; https://doi.org/10.3390/vision8020038 - 19 Jun 2024
Viewed by 744
Abstract
The university population has high visual demands. It is therefore important to assess the prevalence of symptoms in these subjects, which may affect their academic performance. In this cross-sectional study, a randomized sample of 252 subjects from a university answered the Convergence Insufficiency [...] Read more.
The university population has high visual demands. It is therefore important to assess the prevalence of symptoms in these subjects, which may affect their academic performance. In this cross-sectional study, a randomized sample of 252 subjects from a university answered the Convergence Insufficiency Symptom Survey (CISS) questionnaire. In addition, questions were asked about blurred vision during and after near tasks, the number of hours per day spent in near vision, and whether or not they wore glasses. Furthermore, 110 subjects underwent an eye exam, including a refraction and accommodation assessment. The mean age of the subjects was 28.79 ± 11.36 years, 62.3% reported wearing glasses, and on average 7.20 ± 2.92 hours/day was spent in near vision. The mean of the CISS score was 18.69 ± 9.96, and according to its criteria, 38% of the subjects were symptomatic. Some symptoms were significantly (p < 0.05) more frequent in subjects wearing glasses. Accommodative dysfunctions were present in 30.9% of the subjects, the most common being insufficiency of accommodation. We emphasise the importance of assessing symptomatology during the clinical examination in this group of subjects, as they spend many hours a day in near vision, as well as assessing accommodation, binocular vision, and the ergonomic work environment, which may be at the origin of the symptoms, in addition to the need to wear glasses. Full article
(This article belongs to the Special Issue Selected Papers from the 4th International Symposium on Visual Physiology, Environment, and Perception (VisPEP 2024))
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-6
Back to TopTop