Rationale, design, and demographic characteristics of the Handan Offspring Myopia Study.
Ophthalmic Epidemiol
; 21(2): 124-32, 2014 Apr.
Article
en En
| MEDLINE
| ID: mdl-24568612
ABSTRACT
PURPOSE:
The Handan Offspring Myopia Study (HOMS) aims to investigate the familial associations of myopia between parents and their offspring.METHODS:
Children aged 6-18 years, residing in 6 villages where all people aged ≥30 years had participated in The Handan Eye Study in 2006-2007, were selected for the current eye study between March and June 2010. A mobile clinic was set up in the 6 villages for comprehensive eye examinations, including visual acuity, ocular biometry, cycloplegic autorefraction and retinal photography.RESULTS:
Of 1238 eligible individuals, 878 children (70.2%; 52.6% male) from 541 families were recruited. Mean age of the children was 10.5 ± 2.5 years. The prevalence of myopia (spherical equivalent refraction <-0.5 diopter) was 23.5% (males 16.8%, females 30.8%). The prevalence of low vision (presenting visual acuity ≥20/400 but <20/60) in the better eye was 7.1%. A higher number of females had low vision at the time of presentation (9.2%) compared to males (5.2%, p = 0.02). The prevalence of low vision in the worse eye was 10.6% (males 6.7%, females 14.9%, p < 0.001). The majority of visual impairment in the better-seeing (56/62, 90.3%) as well as the worse-seeing (84/93, 90.3%) eye was correctable.CONCLUSIONS:
The HOMS examined about 70% of eligible Han Chinese offspring of Handan Eye Study participants in a rural region of northern China. Results from the HOMS will provide key information about the prevalence of refractive errors and eye diseases in rural Chinese children.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Familia
/
Baja Visión
/
Miopía
Tipo de estudio:
Prevalence_studies
/
Risk_factors_studies
Límite:
Adolescent
/
Child
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Female
/
Humans
/
Male
País/Región como asunto:
Asia
Idioma:
En
Revista:
Ophthalmic Epidemiol
Asunto de la revista:
EPIDEMIOLOGIA
/
OFTALMOLOGIA
Año:
2014
Tipo del documento:
Article
País de afiliación:
China