Low vision and blindness are major public health problems. A vast burden of worlds visually impaired live in low-income settings especially in sub Saharan Africa. In such settings the blindness is associated with considerable disability and excess mortality, resulting in huge economic and social consequence. The main purpose of this study was to determine the prevalence and associated factors of low vision and blindness among patients at St. Paul’s hospital millenium medical college.
Institution based cross sectional design study was carried out from January to April, 2017 with sample size of 904. Systematic random sampling was used to recruit the study subjects. Retrospective medical chart review was done; data was entered into and analyzed by SPSS 23. Descriptive statistics such as frequency cross tabulation and chi-square test was carried out to translate data into information. P-value less than 0.05 was considered as statistically significant.
A total of 881 subjects with a response rate of 97.4% selected. The mean age of the study subjects was 44.53(SD: ± 21.85) with a range of 1–100 years. The prevalence of low vision and blindness was 91 (10.3% (95% CI: 8.2, 12.3)), and 64 (7.3 95%CI: 5.7, 9.0)) respectively. Age (p-value < 0.001), cataract (p-value = 0.002), glaucoma (p-value = 0.002) and age related macular degeneration (p-value < 0.001) were significantly associated with low vision and blindness.
Low vision and blindness found in this study was high. Age, cataract, glaucoma and age related macular degeneration were significantly associated with low vision and blindness. This amount of magnitude will be reduced if prevention, early diagnosis and management will be targeted towards avoidable causes of visual impairment.
Pascolini D, Mariotti SPM. Global estimates of visual impairment. British J Ophthalmol. Online first published December 1, 2011 as. 2010; https://doi.org/10.1136/bjophthalmol-2011-300539.
Thylefors B. A simplified methodology for the assessment of blindness and its main causes. World Health Stat Q. 1987;40:129–41. PubMed
World Health Organization VISION. The right to sight—the global initiative for the elimination of avoidable blindness. Magnitude and causes of visual impairment. Fact Sheet 282.Geneva: World Health Organization; 2020. Available: http://www.who.int/mediacentre/factsheets/fs282/en/index.html. Accessed 20 Oct 2005.
World Health Organization: Global initiative for the elimination of Avoidable blindness. WHO 2000 document WHO/PBL/97.61 Rev.2. Geneva: World Health Organization. Available: http://whqlibdoc.who.int/hq/2000/WHO_PBL_97.61_Rev.2.pdf. Accessed 20 Oct 2017.
World Health Organization. Strategies for the prevention of Blindness in national programmes—a primary health care approach. Geneva: World Health Organization 1997. Available: http://whqlibdoc.who.int/Publications/9241544929.pdf. Accessed 20 Oct 2005.
World Health Organization. Prevention of blindness and visual Impairment. 2005. Available: http://www.who.int/blindness/en/. Accessed 20 Oct 2017.
Berhane Y, Worku A, Bejiga A, Adamu L, Alemayehu W, Bedir A, et al. Prevalence and causes of low vision and blindness in Ethiopia 2005. Ethiop J Health Dev. 2007;21(3)
World Health Organization. List of Official ICD-10 Updates Ratified October 2006. Geneva: WHO; 2006. Available from: http://www.who.int/classifications/icd/2006Updates.pdf. [Last cited on 2018 Apr 09].
Scheimenn JF, Inocencio F, De Lourdes Monteiro M, Andrade J, Auzemery A, Guelfi Y. Blindness and low vision in Cape Verde Islands: results of national eye survey. Ophthalmic Epidemiol. 2006;13(4):219–26. CrossRef
Maake MM, Oduntan OA. Prevalence and causes of visual impairment in patients seen at Nkhensani hospital eye clinic, South Africa. Afr J Prm Health Care Fam Med. 2015;7(1) https://doi.org/10.4102/phcfm.v7i1.728.
Ansah DO. Prevalence and causes of visual impairment among patients in Juaben hospital eye clinic, Ghana. M J Opht. 2017;2(2):017.
Woretaw H, Shiferaw D. Prevalence and associated factors of visual impairment and blindness among at University of Gondar teaching hospital, Gondar, Northwest Ethiopia. Int J Pharm H Care Res. 2015;03(02):48–54.
Harrel J, Larson ND, Menza E, Mboti A. A clinic-based survey of blindness in Kenya. Community Eye Health J. 2001;14(40):68–9.
Eballé AO, Boitte JP, Traoré J. Ocular disorders causing blindness in working-age outpatients: a prospective study at the African Institute of Tropical Ophthalmology (IOTA, Bamako, Mali). Santé. 2005;15(4):241–5.
Malu KN. Blindness and visual impairment in north Central Nigeria: a hospital based study. Niger Postgrad Med J. 2013;20(2):98–103. PubMed
Herse P, Gothwal VK. Survey of visual impairment in an Indian tertiary eye hospital. Indian J Ophthalmol. 1997;45(3):189–93. PubMed
- Prevalence and associated factors of low vision and blindness among patients attending St. Paul’s Hospital Millennium Medical College, Addis Ababa, Ethiopia
Fashe Markos Cherinet
Sophia Yoseph Tekalign
Dereje Hayilu Anbesse
Zewdu Yenegeta Bizuneh
- BioMed Central