Evaluation of Pupillary Diameter in Preschool Children

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dc.contributor.authorLavezzo, Marcelo Mendes
dc.contributor.authorSchellini, Silvana Artioli
dc.contributor.authorPadovani, Carlos Roberto
dc.contributor.authorHirai, Flavio E. [UNIFESP]
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniv Estadual Paulista
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2016-01-24T13:52:10Z
dc.date.available2016-01-24T13:52:10Z
dc.date.issued2009-01-01
dc.description.abstractFew quantitative data exist on pupil diameter, particularly in children. in this article we describe an analysis of pupil diameter and pupil area in normal preschool children during attentive gaze (AG) and spontaneous gaze (SG) using digital imaging. the pupil diameter and pupil area of 200 preschool children aged 4 to 6 years were evaluated. the images were recorded with a digital camera, transferred to a computer, processed by movie software and submitted to the Invert filter of Adobe Photoshop (R) software. Three consecutive measures of pupil diameter and pupil area were taken for both eyes during AG and SG. Arithmetic means of each parameter were calculated and data were expressed in millimeters. Mean pupil diameter was similar for both eyes, presenting values of 4.9 mm during AG and 4.1 mm during SG. Mean pupil area was also similar for both eyes, presenting values of 15.6 mm(2) and 9.1 mm(2) during AG and SG, respectively. There were no differences between boys and girls. However, 6-year-old children showed lower pupil diameter and area under both evaluation conditions.en
dc.description.affiliationUniv São Paulo, Fac Med, Dept Ophthalmol, São Paulo, Brazil
dc.description.affiliationUniv Estadual Paulista, Botucatu Sch Med, Dept Ophthalmol, São Paulo, Brazil
dc.description.affiliationUniv Estadual Paulista, Biosci Inst, Dept Biostat, São Paulo, Brazil
dc.description.affiliationUniversidade Federal de São Paulo, Dept Ophthalmol, São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Ophthalmol, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent313-317
dc.identifierhttp://dx.doi.org/10.3109/01658100903360346
dc.identifier.citationNeuro-ophthalmology. Philadelphia: Taylor & Francis Inc, v. 33, n. 6, p. 313-317, 2009.
dc.identifier.doi10.3109/01658100903360346
dc.identifier.issn0165-8107
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/31235
dc.identifier.wosWOS:000276922500005
dc.language.isoeng
dc.publisherTaylor & Francis Inc
dc.relation.ispartofNeuro-ophthalmology
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.licensehttp://journalauthors.tandf.co.uk/permissions/reusingOwnWork.asp
dc.subjectPupil diameteren
dc.subjectpupil areaen
dc.subjectattentionen
dc.subjectpreschool childrenen
dc.subjectdigital imagingen
dc.titleEvaluation of Pupillary Diameter in Preschool Childrenen
dc.typeinfo:eu-repo/semantics/article
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