Prevalence of convergence insufficiency among Spanish school children aged 6 to 14 years
J. optom. (Internet)
; 15(4)October - December 2022. tab
Artigo
em Inglês
| IBECS
| ID: ibc-210186
Biblioteca responsável:
ES1.1
Localização: ES15.1 - BNCS
ABSTRACT
Clinical relevanceConvergence insufficiency (CI) at an early age can lead to learning difficulties affecting school performance. The aim of this study was to examine the prevalence of CI in a non-clinical population of Spanish children using well defined clinical criteria and to determine whether sex is a risk factor.MethodsVisual acuity and binocular vision tests were performed in 628 children aged 614 years (mean age 9.6 ± 1.3 years) at three schools in the Madrid Community, Spain. To assess CI prevalence we used CITT (Convergence Insufficiency Treatment Trial) criteria. The three signs considered were i) exophoria at least 4∆ greater at near than at far; ii) near break point of convergence (NPC) ≥ 6 cm; and iii) reduced positive fusional vergence (PFV) at near (≤ 15∆ base-out break or failed Sheard's criterion).ResultsThe CI prevalence detected was 5.30% (33 children). Proportions of children with one or two signs of CI were 23.76% (148 children) and 12.20% (76 children), respectively. No differences in these CI rates by sex were detected.ConclusionThe clinically significant CI prevalence observed here suggests the need for more binocular vision screening programmes in school settings. (AU)
Texto completo:
Disponível
Coleções:
Bases de dados nacionais
/
Espanha
Base de dados:
IBECS
Assunto principal:
Transtornos da Motilidade Ocular
/
Prevalência
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Convergência Ocular
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Acomodação Ocular
Limite:
Criança
/
Humanos
País/Região como assunto:
Europa
Idioma:
Inglês
Revista:
J. optom. (Internet)
Ano de publicação:
2022
Tipo de documento:
Artigo
Instituição/País de afiliação:
CEU San Pablo University/Spain
/
Complutense University of Madrid/Spain