Prevalence of refractive errors in children (age group 7-15 years) of rural and urban area of Gujarat: a population based study

Bhatt, Janardan; Trivedi, Vivek and Zalavadia, Sandeep (2006) Prevalence of refractive errors in children (age group 7-15 years) of rural and urban area of Gujarat: a population based study. Journal of Applied Basic Medical Sciences, 8 (1). pp. 128-135. ISSN ISSN-0972-4729

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AIM: To assess the prevalence of refractive error and related visual impairment in school-aged children in the rural population of the Prantij village of Sabarkantha district and compare the result with similar study done at Urban area in Ahmedabad in Gujarat. METHOD: Random selection of village-based clusters was used to identify a sample of children 7 to 15 years of age. From February 2006 through April 2006, children in the 25 selected clusters were enumerated in a door-to-door survey and examined at a rural eye center. The examination included visual acuity measurements, ocular motility evaluation and examination of the anterior segment & media. Myopia was defined as spherical equivalent refractive error of at least -0.50 D and hyperopia as +2.00 D or more. RESULTS: A total of 452 children from 500 households was enumerated, and 417 (92.3%) were examined. The prevalence of uncorrected, baseline (presenting), and best corrected visual acuity of 20/40 or worse in the better eye was 2.7%, 2.6%, and 0.78%, respectively. Refractive error was the cause in 61% of eyes with vision impairment, amblyopia in 12%, other causes in 15%, and unexplained causes in the remaining 13%. A gradual shift toward less-positive values of refractive error occurred with increasing age in both boys and girls. Myopia in one or both eyes was present in 4.1% of the children. Myopia risk was associated with female gender and having a father with a higher level of schooling. Higher risk of myopia in children of older age was of borderline statistical significance (P = 0.069). Hyperopia in at least one eye was present in 0.8% of children, with no significant predictors. CONCLUSIONS: Refractive error was the main cause of visual impairment in children aged between 7 and 15 years in rural India. There was a benefit of spectacles in 70% of those who had visual acuity of 20/40 or worse in the better eye at baseline examination. Because visual impairment can have a significant impact on a child’s life in terms of education and development, it is important that effective strategies be developed to eliminate this easily treated cause of visual impairment.

EPrint Type:Article
Additional Information:This is excellent review of comparative study of pattern and status of refractory errors in Gujarat area.This results are eye raising for NGO and governments also if our dream of vision 2020 make true.
Uncontrolled Keywords:Visual impairment, Refractory errors, Rural and urban areas, Children, Population Based Study
Subjects:Population Characteristics > Population
Persons > Age Groups > Child
Persons > Population Groups
Eye Diseases > Vision Disorders > Blindness
Eye Diseases > Eyelid Diseases
Eye Diseases > Refractive Errors > Myopia
Eye Diseases > Refractive Errors
Investigative Techniques > Epidemiologic Methods > Data Collection > Vital Statistics > Morbidity > Prevalence
Eye Diseases > Vision Disorders > Amblyopia
-Journal Repositories > Journal of Applied Basic Medical Sciences
ID Code:1933
Deposited By:Indian Journal of Applied Basic Medical scieces Ahmedabad
Deposited On:20 November 2006

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