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Strabismus, visual acuity, and uncorrected refractive error in Portuguese children aged 6 to 11 years

dc.contributor.authorLança, Carla
dc.date.accessioned2014-08-06T10:37:18Z
dc.date.available2014-08-06T10:37:18Z
dc.date.issued2014-07
dc.description.abstractIntroduction: Visual anomalies that affect school-age children represent an important public health problem. Data on the prevalence are lacking in Portugal but is needed for planning vision services. This study was conducted to determine the prevalence of strabismus, decreased visual acuity, and uncorrected refractive error in Portuguese children aged 6 to 11 years. Methods and materials: A cross-sectional study was carried out on a sample of 672 school-age children (7.69 ± 1.19 years). Children received an orthoptic assessment (visual acuity, ocular alignment, and ocular movements) and non-cycloplegic autorefraction. Results: After orthoptic assessment, 13.8% of children were considered abnormal (n = 93). Manifest strabismus was found in 4% of the children. Rates of esotropia (2.1%) were slightly higher than exotropia (1.8%). Strabismus rates were not statistically significant different per sex (p = 0.681) and grade (p = 0.228). Decreased visual acuity at distance was present in 11.3% of children. Visual acuity ≤20/66 (0.5 logMAR) was found in 1.3% of the children. We also found that 10.3% of children had an uncorrected refractive error. Conclusions: Strabismus affects a small proportion of the Portuguese school-age children. Decreased visual acuity and uncorrected refractive error affected a significant proportion of school-age children. New policies need to be developed to address this public health problem.por
dc.identifier.citationLança CC, Serra H, Prista J. Strabismus, visual acuity, and uncorrected refractive error in Portuguese children aged 6 to 11 years. Strabismus. 2014 Jul 14:1-5. [Epub ahead of print].por
dc.identifier.doi10.3109/09273972.2014.932395
dc.identifier.urihttp://hdl.handle.net/10400.21/3730
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherInforma Healthcarepor
dc.relation.publisherversionhttp://www.ncbi.nlm.nih.gov/pubmed/25019452por
dc.subjectOphthalmologypor
dc.subjectOrthopticspor
dc.subjectStrabismuspor
dc.subjectUncorrected refractive errorpor
dc.subjectVisual acuitypor
dc.subjectChildrenpor
dc.titleStrabismus, visual acuity, and uncorrected refractive error in Portuguese children aged 6 to 11 yearspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage5por
oaire.citation.startPage1por
oaire.citation.titleStrabismuspor
person.familyNameLança
person.givenNameCarla
person.identifier.ciencia-id601A-6412-BF2F
person.identifier.orcid0000-0001-9918-787X
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication0320b455-ee19-4670-8bf2-10dce9de1bec
relation.isAuthorOfPublication.latestForDiscovery0320b455-ee19-4670-8bf2-10dce9de1bec

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