Binocular vision and balance measurement and analysis

Oliveira, Manuel; Mendanha, Luís; Pereira, Leonor Moniz

Publication

Binocular vision and balance measurement and analysis

2007-06Journal article

dc.contributor.author	Oliveira, Manuel
dc.contributor.author	Mendanha, Luís
dc.contributor.author	Pereira, Leonor Moniz
dc.date.accessioned	2023-08-02T10:20:23Z
dc.date.available	2023-08-02T10:20:23Z
dc.date.issued	2007-06
dc.description.abstract	An individual's ability to see and function visually is determined largely by the relative contributions of a number of underlying components of vision designated as visual abilities. These visual abilities are: acuity, visual field, motility, brain functions, and light and colour reception others consider also contrast, accommodation, and binocular vision. The efficacy of our visual system influences the way we collect and process information. It is through the conjugated movement of the two eyes that we can fix and pursue one object. The ocular movements and the binocular vision are linked and they are influenced mutually. The measurement device most often used for measuring eye movements is commonly known as an eye tracker. In order to characterize the mechanisms of fixation and persecution and the way how binocular vision influences them, we use in our study the Eye Tracking System-ASL 504, because allows an evaluation next to the natural conditions. Our sample was composed by young adults, distributed in two groups, one formed by individuals with normal binocular vision evaluated in two different conditions (binocular and monocular) and another one by individuals with convergence insufficiency, both with 24 participants. The individuals observe a small target, moving in four directions (left-right; right-left; up-down; down-up). The selected variables were: the mean duration of the fixation and mean saccadic amplitudes. The study of normality seems to indicate that the Eye Tracker is an efficient system for the study of ocular movements (fixation and pursuit). The eye-tracking system that we use showed good discrimination for the selected variables. We think that this study shows the important contribution that eye tracking can give in the analysis, of the functional alterations of binocular vision because allows us to evaluate them in conditions very next to reality.	pt_PT
dc.description.version	info:eu-repo/semantics/publishedVersion	pt_PT
dc.identifier.citation	Oliveira M, Mendanha L, Pereira LM. Binocular vision and balance measurement and analysis. In: ISHF 2007 - Conference Proceedings of the 3rd International Symposium on Measurement, Analysis, and Modeling of Human Functions. p. 194-9.	pt_PT
dc.identifier.isbn	978161567676-7
dc.identifier.uri	http://hdl.handle.net/10400.21/16362
dc.language.iso	eng	pt_PT
dc.peerreviewed	yes	pt_PT
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/	pt_PT
dc.subject	Orthoptics	pt_PT
dc.subject	Binocular vision	pt_PT
dc.subject	Function evaluation	pt_PT
dc.subject	Eye trackers	pt_PT
dc.subject	Ocular movements	pt_PT
dc.subject	Visual abilities	pt_PT
dc.subject	Eye movements	pt_PT
dc.title	Binocular vision and balance measurement and analysis	pt_PT
dc.type	journal article
dspace.entity.type	Publication
oaire.citation.endPage	199	pt_PT
oaire.citation.startPage	194	pt_PT
person.familyName	Mendanha Dias
person.givenName	Luís
person.identifier.orcid	0000-0001-8430-1780
rcaap.rights	openAccess	pt_PT
rcaap.type	article	pt_PT
relation.isAuthorOfPublication	65b4bf1c-eaa5-4a81-b5e3-92e0dedbf9e2
relation.isAuthorOfPublication.latestForDiscovery	65b4bf1c-eaa5-4a81-b5e3-92e0dedbf9e2