[Refractional astigmatism prevalence and its relationship with grating acuity in children 2 to 36 months of age]. / Prevalência de astigmatismo refracional e sua relação com a acuidade visual de resolução em crianças de 2 a 36 meses.
Arq Bras Oftalmol
; 69(3): 365-70, 2006.
Article
em Pt
| MEDLINE
| ID: mdl-16936960
PURPOSE: To evaluate refractional astigmatism prevalence and its relationship with grating acuity in a cohort of non-verbal children. METHODS: 482 normal children, aged from 2 to 36 months, were submitted to ophthalmological examination. Fourteen subjects were excluded due to ocular disease and the sample remained with 468 subjects (936 eyes); 230 (49%) males e 238 (51%) females. Grating acuity was assessed binocularly and monocularly with Teller acuity cards. All children underwent eye examination including cycloplegic retinoscopy and fundus by indirect ophthalmoscopy. RESULTS: Astigmatism was found in 222 (47.43%) of the children, with the hyperopic and with the rule types most frequently found in all ages. Concerning magnitude, this condition was equal or greater than 1.00 cylindric diopter in 24.35% of the children; equal or greater than 2.00 cylindric diopter in 5.55%; lower than 1.00 in 26.92% and between 1.00 and 2.00 in 18.73%. Grating acuity was normal in 219 of the subjects, despite magnitude, type and orientation of astigmatism. CONCLUSION: Visual acuity assessed by the acuity card procedure was not influenced by astigmatism.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Astigmatismo
/
Acuidade Visual
/
Seleção Visual
Tipo de estudo:
Diagnostic_studies
/
Prevalence_studies
/
Risk_factors_studies
/
Screening_studies
Limite:
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
País/Região como assunto:
America do sul
/
Brasil
Idioma:
Pt
Revista:
Arq Bras Oftalmol
Ano de publicação:
2006
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil