The prevalence of visual impairment and blindness in underserved rural areas: A crucial issue for future

Hashemi, H. and Yekta, A. and Jafarzadehpur, E. and Doostdar, A. and Ostadimoghaddam, H. and Khabazkhoob, M. (2017) The prevalence of visual impairment and blindness in underserved rural areas: A crucial issue for future. Eye (Basingstoke), 31 (8). pp. 1221-1228.

[img] Text
The prevalence of visual impairment and blindness in underserved rural area.pdf

Download (173kB)


PurposeTo determine the prevalence of visual impairment and blindness in underserved Iranian villages and to identify the most common cause of visual impairment and blindness.Patients and methodsMultistage cluster sampling was used to select the participants who were then invited to undergo complete examinations. Optometric examinations including visual acuity, and refraction were performed for all individuals. Ophthalmic examinations included slit-lamp biomicroscopy and ophthalmoscopy. Visual impairment was determined according to the definitions of the WHO and presenting vision.ResultsOf 3851 selected individuals, 3314 (86.5) participated in the study. After using the exclusion criteria, the present report was prepared based on the data of 3095 participants. The mean age of the participants was 37.6±20.7 years (3-93 years). The prevalence of visual impairment and blindness was 6.43 (95 confidence interval (CI): 3.71-9.14) and 1.18 (95 CI: 0.56-1.79), respectively. The prevalence of visual impairment varied from 0.75 in participants aged less than 5 years to 38.36 in individuals above the age of 70 years. Uncorrected refractive errors and cataract were the first and second leading causes of visual impairment; moreover, cataract and refractive errors were responsible for 35.90 and 20.51 of the cases of blindness, respectively.ConclusionThe prevalence of visual impairment was markedly high in this study. Lack of access to health services was the main reason for the high prevalence of visual impairment in this study. Cataract and refractive errors are responsible for 80 of visual impairments which can be due to poverty in underserved villages. © 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.

Item Type: Article
Additional Information: Cited By :12 Export Date: 16 February 2020 CODEN: EYEEE Correspondence Address: Khabazkhoob, M.; Department of Medical Surgical Nursing, School of Nursing and Midwifery, Shahid Beheshti University of Medical SciencesIran; email:
Uncontrolled Keywords: adult age aged Article blindness cataract child cross-sectional study educational status eye refraction female human Iran major clinical study male ophthalmoscopy prevalence refraction error rural area slit lamp microscopy visual acuity visual impairment world health organization adolescent cluster analysis health care planning low vision middle aged preschool child rural population statistical model statistics and numerical data very elderly young adult Aged, 80 and over Child, Preschool Cross-Sectional Studies Humans Logistic Models Medically Underserved Area Refractive Errors Vision, Low
Subjects: WW Ophthalmology
Divisions: Mashhad University of Medical Sciences
Depositing User: mr lib3 lib3
Date Deposited: 28 Apr 2020 09:08
Last Modified: 28 Apr 2020 09:08

Actions (login required)

View Item View Item