2009
DOI: 10.1016/j.ophtha.2008.08.031
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Fixation Preference and Visual Acuity Testing in a Population-based Cohort of Preschool Children with Amblyopia Risk Factors

Abstract: Purpose-To compare the clinical assessment of fixation preference (FP) to visual acuity (VA) in a population-based sample of preschool children with amblyopia risk factors. Design-Evaluation of diagnostic test in a population-based study.Participants-Two hundred forty-three children with amblyopia and/or strabismus, aged 30-72 months, living in Los Angeles County, California.Methods-Before measuring VA, FP testing was performed at near and usually without correction, using the binocular fixation pattern in chi… Show more

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Cited by 49 publications
(47 citation statements)
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“…However, its reliability for prediction of amblyopia has been questioned by several investigators [17][18][19]. In our study, we observed fixation preference in 64.6% of the overall patients and in all of the failure group.…”
Section: Discussionmentioning
confidence: 40%
“…However, its reliability for prediction of amblyopia has been questioned by several investigators [17][18][19]. In our study, we observed fixation preference in 64.6% of the overall patients and in all of the failure group.…”
Section: Discussionmentioning
confidence: 40%
“…Verificando-se as sensibilidades e especificidades dos trabalhos publicados, empregando o teste convencional (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21) , com exceção do trabalho de Procianoy, Procianoy (21) , todos os demais mostraram es pecificidade menor do que a sensibilidade (a média das sensibilidades publicadas é de 77,8% e das especificidades 58%). Em nosso estudo o teste modificado apresentou especificidade 19% maior que a média encontrada na literatura.…”
Section: Discussionunclassified
“…Baseado nisso, quando o paciente é incapaz de alternar a fixação espontaneamente, oclui-se momentaneamente o olho dominante para posterior avaliação da capacidade do olho contralateral em manter a fixação no alvo exposto. A maioria dos autores considera não haver ambliopia quando a fixação é mantida por 5 segundos ou mais (12)(13)(14)(15)(16) . Os estudos atuais têm mostrado controvérsias quanto à acurácia do teste de fixação preferencial (10) .…”
Section: Introductionunclassified
“…Alternatively, there is some recent evidence that fixation preference may under-diagnose anisometropic amblyopia and/or overdiagnose strabismic amblyopia. 2,3 Our ongoing longitudinal study of children with amblyogenic factors will allow us to examine these alternative hypotheses.…”
Section: Discussionmentioning
confidence: 99%
“…Fixation preference of children with orthotropia or small angle (<10 Δ ) strabismus, and children with intermittent strabismus who fused during the examination, was evaluated with a 10 Δ -12 Δ base-down loose prism. While fixation preference may be an imperfect method for the diagnosis of amblyopia, 2,3 it is currently the most widely accepted method for deciding which children age <3 years with strabismus and/or anisometropia need amblyopia treatment. 4 This research protocol observed the tenets of the Declaration of Helsinki and was approved by the Institutional Review Board of UT Southwestern Medical Center.…”
Section: Methodsmentioning
confidence: 99%