The prevalence of uncorrected refractive errors in underserved rural areas

Hashemi, H. and Abbastabar, H. and Yekta, A. and Heydarian, S. and Khabazkhoob, M. (2017) The prevalence of uncorrected refractive errors in underserved rural areas. Journal of Current Ophthalmology, 29 (4). pp. 305-309.

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Purpose To determine the prevalence of uncorrected refractive errors, need for spectacles, and the determinants of unmet need in underserved rural areas of Iran. Methods In a cross-sectional study, multistage cluster sampling was done in 2 underserved rural areas of Iran. Then, all subjects underwent vision testing and ophthalmic examinations including the measurement of uncorrected visual acuity (UCVA), best corrected visual acuity, visual acuity with current spectacles, auto-refraction, retinoscopy, and subjective refraction. Need for spectacles was defined as UCVA worse than 20/40 in the better eye that could be corrected to better than 20/40 with suitable spectacles. Results Of the 3851 selected individuals, 3314 participated in the study. Among participants, 18.94 95% confidence intervals (CI): 13.48–24.39 needed spectacles and 11.23% (95% CI: 7.57–14.89) had an unmet need. The prevalence of need for spectacles was 46.8% and 23.8% in myopic and hyperopic participants, respectively. The prevalence of unmet need was 27% in myopic, 15.8% in hyperopic, and 25.46% in astigmatic participants. Multiple logistic regression showed that education and type of refractive errors were associated with uncorrected refractive errors; the odds of uncorrected refractive errors were highest in illiterate participants, and the odds of unmet need were 12.13, 5.1, and 4.92 times higher in myopic, hyperopic and astigmatic participants as compared with emmetropic individuals. Conclusion The prevalence of uncorrected refractive errors was rather high in our study. Since rural areas have less access to health care facilities, special attention to the correction of refractive errors in these areas, especially with inexpensive methods like spectacles, can prevent a major proportion of visual impairment. © 2017 Iranian Society of Ophthalmology

Item Type: Article
Additional Information: Cited By :1 Export Date: 16 February 2020 Correspondence Address: Khabazkhoob, M.; Department of Medical Surgical Nursing, School of Nursing and Midwifery, Shahid Beheshti University of Medical SciencesIran; email:
Uncontrolled Keywords: Population-based study Uncorrected refractive errors Unmet need adolescent adult aged Article astigmatism child cross-sectional study educational status emmetropia female health care access health care need human hypermetropia Iran major clinical study male medically underserved myopia prevalence refraction error risk factor rural area uncorrected refractive error very elderly
Subjects: WW Ophthalmology
Divisions: Mashhad University of Medical Sciences
Depositing User: mr lib3 lib3
Date Deposited: 29 Apr 2020 07:02
Last Modified: 29 Apr 2020 07:02

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