Cargando…

Eye-Tracker Study of the Developmental Eye Movement Test in Young People without Binocular Dysfunctions

Background: The purpose of this study was to evaluate ocular motility in normal young adults when performing the Developmental Eye Movement (DEM) test using an infrared eye-tracker in a sample of young subjects without visual dysfunctions. Methods: An optometric evaluation was carried out on 52 part...

Descripción completa

Detalles Bibliográficos
Autores principales: Orduna-Hospital, Elvira, Navarro-Marqués, Aitana, López-de-la-Fuente, Carmen, Sanchez-Cano, Ana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10058691/
https://www.ncbi.nlm.nih.gov/pubmed/36983928
http://dx.doi.org/10.3390/life13030773
_version_ 1785016694601678848
author Orduna-Hospital, Elvira
Navarro-Marqués, Aitana
López-de-la-Fuente, Carmen
Sanchez-Cano, Ana
author_facet Orduna-Hospital, Elvira
Navarro-Marqués, Aitana
López-de-la-Fuente, Carmen
Sanchez-Cano, Ana
author_sort Orduna-Hospital, Elvira
collection PubMed
description Background: The purpose of this study was to evaluate ocular motility in normal young adults when performing the Developmental Eye Movement (DEM) test using an infrared eye-tracker in a sample of young subjects without visual dysfunctions. Methods: An optometric evaluation was carried out on 52 participants with a mean age of 21.00 ± 3.22 years to verify they did not have any binocular dysfunction, by completing a computerized version of the DEM test while their eye movements were recorded with an eye-tracker. A custom-written software was developed to analyse some specific parameters of ocular motility while performing each subtest (Test A, Test B and Test C) of the complete DEM test. Results: The mean duration of the fixations was shorter in Test C (243.56 ± 46.18 s) than in Test A (493.52 ± 171.41 s) and Test B (484.20 ± 156.59 s). The mean adjusted horizontal (AdjHT: 35.24 ± 6.68 s) and vertical (VT: 33.58 ± 5.56 s) times were at the 45th and at the 40th percentile, respectively. In Test C, there was a high positive significant correlation between the saccadic speed (cc: 0.77; p < 0.001) and the saccadic length (cc: 0.74; p < 0.001) of both eyes. Conclusions: The eye-tracker is an objective method to evaluate the DEM test in subjects without binocular dysfunctions, measuring and quantifying ocular motility parameters that are impossible with the traditional subjective method. The eye movements of both eyes are conjugated in each subject, having saccades of the same length and speed.
format Online
Article
Text
id pubmed-10058691
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-100586912023-03-30 Eye-Tracker Study of the Developmental Eye Movement Test in Young People without Binocular Dysfunctions Orduna-Hospital, Elvira Navarro-Marqués, Aitana López-de-la-Fuente, Carmen Sanchez-Cano, Ana Life (Basel) Article Background: The purpose of this study was to evaluate ocular motility in normal young adults when performing the Developmental Eye Movement (DEM) test using an infrared eye-tracker in a sample of young subjects without visual dysfunctions. Methods: An optometric evaluation was carried out on 52 participants with a mean age of 21.00 ± 3.22 years to verify they did not have any binocular dysfunction, by completing a computerized version of the DEM test while their eye movements were recorded with an eye-tracker. A custom-written software was developed to analyse some specific parameters of ocular motility while performing each subtest (Test A, Test B and Test C) of the complete DEM test. Results: The mean duration of the fixations was shorter in Test C (243.56 ± 46.18 s) than in Test A (493.52 ± 171.41 s) and Test B (484.20 ± 156.59 s). The mean adjusted horizontal (AdjHT: 35.24 ± 6.68 s) and vertical (VT: 33.58 ± 5.56 s) times were at the 45th and at the 40th percentile, respectively. In Test C, there was a high positive significant correlation between the saccadic speed (cc: 0.77; p < 0.001) and the saccadic length (cc: 0.74; p < 0.001) of both eyes. Conclusions: The eye-tracker is an objective method to evaluate the DEM test in subjects without binocular dysfunctions, measuring and quantifying ocular motility parameters that are impossible with the traditional subjective method. The eye movements of both eyes are conjugated in each subject, having saccades of the same length and speed. MDPI 2023-03-13 /pmc/articles/PMC10058691/ /pubmed/36983928 http://dx.doi.org/10.3390/life13030773 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Orduna-Hospital, Elvira
Navarro-Marqués, Aitana
López-de-la-Fuente, Carmen
Sanchez-Cano, Ana
Eye-Tracker Study of the Developmental Eye Movement Test in Young People without Binocular Dysfunctions
title Eye-Tracker Study of the Developmental Eye Movement Test in Young People without Binocular Dysfunctions
title_full Eye-Tracker Study of the Developmental Eye Movement Test in Young People without Binocular Dysfunctions
title_fullStr Eye-Tracker Study of the Developmental Eye Movement Test in Young People without Binocular Dysfunctions
title_full_unstemmed Eye-Tracker Study of the Developmental Eye Movement Test in Young People without Binocular Dysfunctions
title_short Eye-Tracker Study of the Developmental Eye Movement Test in Young People without Binocular Dysfunctions
title_sort eye-tracker study of the developmental eye movement test in young people without binocular dysfunctions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10058691/
https://www.ncbi.nlm.nih.gov/pubmed/36983928
http://dx.doi.org/10.3390/life13030773
work_keys_str_mv AT ordunahospitalelvira eyetrackerstudyofthedevelopmentaleyemovementtestinyoungpeoplewithoutbinoculardysfunctions
AT navarromarquesaitana eyetrackerstudyofthedevelopmentaleyemovementtestinyoungpeoplewithoutbinoculardysfunctions
AT lopezdelafuentecarmen eyetrackerstudyofthedevelopmentaleyemovementtestinyoungpeoplewithoutbinoculardysfunctions
AT sanchezcanoana eyetrackerstudyofthedevelopmentaleyemovementtestinyoungpeoplewithoutbinoculardysfunctions