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Prevalence of anisometropia in Taiwanese schoolchildren.
Shih, Yung-Feng; Hsiao, Chu Hsing Kate; Wen, Shu-Hui; Lin, Luke Long-Kuang; Chen, Chien-Jen; Hung, Por-Tying.
Afiliação
  • Shih YF; Department of Ophthalmology, College of Medicine, National Taiwan University, Taipei, Taiwan.
J Formos Med Assoc ; 104(6): 412-7, 2005 Jun.
Article em En | MEDLINE | ID: mdl-16037830
BACKGROUND AND PURPOSE: This study investigated the prevalence and distribution of anisometropia in Taiwanese schoolchildren using nationwide data from refractive surveys performed in 1995 and 2000. METHODS: Complete survey data was obtained for 11,175 students in 1995 and 10,878 students in 2000. The refractive status of each student was measured using an autorefractometer under cycloplegia and rechecked with retinoscopy. The difference in refractive status between each participant's eyes was determined. Chi-squared statistic was used to assess the difference between the 2 surveys. Multiple linear regression was used to determine the trend and effects of covariates. RESULTS: Most of the schoolchildren (77.6% in 1995, 71.9% in 2000) were not anisometropic. Most of the anisometropic differences were in the range 0.5 to 1.0 D (14.1% in 1995 vs 17.9% in 2000). About 6% of schoolchildren in 1995 and 7.0% in 2000 had anisometropic differences in the range from -1.0 to -2.0 D. Fewer than 4% of students had a level of anisometropia greater than 2.0 D (2.7% vs 3.2%, respectively). The prevalence of anisometropia and the extent of anisometropic difference both increased with age and with maximal myopic refraction (both p < 0.0001). Both the prevalence and extent of anisometropia showed significant differences between the 2 surveys (both p < 0.0001). CONCLUSIONS: Most of the Taiwanese schoolchildren surveyed were non-anisometropic. The prevalence and amount of anisometropia were significantly increased from 1995 to 2000. The mechanisms responsible for these increases have not been determined, but may be related to increase of myopic refraction.
Assuntos
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Anisometropia Tipo de estudo: Diagnostic_studies / Prevalence_studies / Risk_factors_studies Limite: Adolescent / Child / Female / Humans / Male País/Região como assunto: Asia Idioma: En Revista: J Formos Med Assoc Assunto da revista: MEDICINA Ano de publicação: 2005 Tipo de documento: Article País de afiliação: Taiwan
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Anisometropia Tipo de estudo: Diagnostic_studies / Prevalence_studies / Risk_factors_studies Limite: Adolescent / Child / Female / Humans / Male País/Região como assunto: Asia Idioma: En Revista: J Formos Med Assoc Assunto da revista: MEDICINA Ano de publicação: 2005 Tipo de documento: Article País de afiliação: Taiwan