ArticleBMC ophthalmology2021
Prevalence and associated factors of vision loss in the South African National Health and Nutrition Examination Survey (SANHANES-1).
Article in BMC ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.
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10 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.
- Approaches for delivery of refractive and optical care services in community and primary care settings.The Cochrane database of systematic reviews · 2024Pooled it
- Bundled management improves clinical outcome and reduces healthcare cost in multidrug-resistant bacterial infections: a retrospective study.American journal of translational research · 2026Article
- Retinal Microvascular Alterations in Hidradenitis Suppurativa Patients: A Pilot Study Using Optical Coherence Tomography Angiography.Journal of clinical medicine · 2024Article
- Ocular therapeutics and the profession of optometry in South Africa.African journal of primary health care & family medicine · 2024Article
- Factors associated with underweight, overweight, stunting and wasting among primary school-going children participating in a school health initiative in South Africa.BMC nutrition · 2023Article
- Vision-related quality of life amongst patients with low vision and blindness in a resource-limited country.International ophthalmology · 2023Article
- Visual Impairment and Its Associated Factors Among Hypertensive Patients in Amhara Region Referral Hospitals, Ethiopia.Clinical ophthalmology (Auckland, N.Z.) · 2023Article
- Visual Impairment and Blindness among Patients at Nigeria Army Eye Centre, Bonny Cantonment Lagos, Nigeria.Healthcare (Basel, Switzerland) · 2022Article
- Visual impairment and associated factors among pregnant women attending antenatal care units at health institutions in Gondar City Administration, Northwest Ethiopia.BMC pregnancy and childbirth · 2021Article
- Vision loss, vision difficulty and psychological distress in South Africa: results from SANHANES-1.BMC psychology · 2021Article
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Authors and funding
9 authors at 3 institutions in 4 countries.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundVision loss is a major public health concern that significantly affects developing countries, including South Africa. Although existing literature have reported on the prevalence, causes, and impact of vision loss on the quality of life of affected individuals (children and adults) in parts of South Africa, there is no evidence of the prevalence and associated factors of vision loss in the general population. Hence, this study aimed to determine the prevalence of vision loss and its associated factors in South Africa using a population-based survey.
methodsSecondary analyses were conducted using data from the South African National Health and Nutrition Examination Survey (SANHANES-1), a population-based national health survey conducted from 2011 to 2012. Vision loss was defined as presenting visual acuity (PVA) worse than Snellen 6/12 in the better eye. Visual acuity was assessed by clinicians and participants' subjective response to vision-related questions. Univariate and multiple logistic regression models were used to examine the association of the independent variables with vision loss.
resultsThe analytic sample comprised 4346 individuals with a mean age of 39.1 years. Female sex accounted for 55.6% of the participants. The prevalence of vision loss among participants was 9.2% (95% CI: 7.7-10.9). Older age (45-54 years, OR = 2.99, p < 0.001; 55-64 years, OR = 5.78, p < 0.001 and ≥ 65 years, OR = 5.12, p < 0.001), female sex (OR = 1.50, p = 0.016), and previous diabetes diagnosis (OR = 2.28, p = 0.001) were significantly associated with increased odds of vision loss. Further, secondary school education (OR = 0.71, p = 0.031), white ethnicity (OR = 0.11, p = 0.007), residing in Mpumalanga province (OR = 0.12, p < 0.001) and having never had an eye examination (OR = 0.56, p = 0.003) were significantly associated with reduced odds of vision loss.
conclusionAlmost one in ten participants had vision loss. Adopting strategies targeted at reducing barriers to the utilization of eye care services will promote early detection and management of blinding conditions, and thereby, decrease the burden of vision loss in South Africa.
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