ArticleAfrican health sciences2022
Prevalence and causes of visual impairment amongst hearing impaired school-going children in sub-Saharan Africa: a scoping review.
Article in African health sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
4 citing papers in PubMed, 9 citations in OpenAlex.
- Global prevalence and years lived with disability (YLDs) of cataract in 204 countries and territories: findings from the Global Burden of Disease Study 2021.Eye (London, England) · 2025Article
- Compliance with spectacle wear among learners with hearing impairment in Ghana.African journal of disability · 2024Article
- Prevalence of Ocular Morbidity and Associated Factors Among Hearing Impaired Children at Embangweni School of the Deaf in Mzimba District, Malawi.Clinical optometry · 2024Article
- Editorial: Non-communicable diseases; sexual reproductive issues; infectious diseases and health systems challenges.African health sciences · 2022Article
Corrections and comments
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Authors and funding
5 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Learners living with hearing impairment are at a higher risk of visual impairment. Purpose: To summarise relevant literature investigating the prevalence and causes of visual impairment amongst learners living with hearing impairment in sub-Saharan Africa. Methods: A search of nine databases and the reference lists of retrieved studies were conducted using the standard methodology for scoping reviews as described in the PRISMA statement. The databases were MEDLINE, PubMed, EMBASE, the Cochrane Library, Global Health, OVID, Google Scholar, Web of Science, and Science Direct. A scoping review of articles published in the English language from 2000 to 2020 was conducted while considering the study design, sub-Saharan Africa, and school for the deaf. Descriptive statistics was used to analyse the data. Results: The initial search retrieved eight studies, seven of which met the set inclusion criteria. All seven studies included employed a cross-sectional design. The prevalence of visual impairment ranged from 2.2-34.6% with the major cause being uncorrected refractive error (7.9-73.26%). The most common type of refractive error was myopia (42.2%) followed by hyperopia (28.6%) and astigmatism (28.6%). Conclusion: This review has demonstrated that there is a paucity of high-quality and well-designed studies that have investigated the prevalence and causes of visual impairment amongst hearing-impaired children in sub-Saharan Africa suggesting the need for further research in this area.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.