Abstract
Purpose
The aim of the study was to determine the prevalence and causes of eye diseases and visual impairment in students in the Ilesa East local government area of Osun state, Nigeria.
Methods
A cross-sectional survey that utilised a multistage random sampling method to select 1,144 primary and secondary school students.
Results
A total of 1,144 students (504 males and 640 females) were involved in the study. Their ages ranged from 4 to 24 years. The majority (97.8%) of them were below 18 years of age. A total of 177 (15.5%) of the school children were found to have eye diseases. The major ocular disorders were in the following order: conjunctiva 91 (51.4%), refractive error 66 (37.3%), lid 7 (4.0%), corneal, including staphyloma and keratoconus 5 (2.8%) and then others.
These included conjunctival diseases 91 (8%) constituted mainly by allergic/vernal conjunctivitis 85 (7.4%), refractive error 66 (5.8%), lid disorders 6 (0.6%), squint 3 (0.3%), corneal scarring 3 (0.3%) and cataract 2 (0.2%). A total of 15 students were visually impaired, with a prevalence of 1.26%. Only two students were blind, with a prevalence of 0.17%. Causes of visual impairment were refractive error 10 (0.87%), bilateral immature cataract 1 (0.08%), corneal opacities 2 (0.2%), amblyopia leading to squint 1 (0.08%) and cataract 1 (0.08%). The causes of blindness in students were bilateral corneal scars presumed to be due to vitamin A deficiency in one (0.08%) student and complicated bilateral keratoconus with complicated vernal ulcers in another (0.08%).
Conclusions
Eye diseases are common amongst Nigerian students. Eye examination for all new intakes and regular screening in both public and private primary and secondary schools is advocated. Wearing of corrective glasses should be emphasised for children with refractive error. Causes of blindness and visual impairment in children attending regular schools in Nigeria were avoidable.
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References
National Population Commission (1991) Federal Republic of Nigeria
World Health Organisation (1999) Report of WHO/IAPB scientific meeting, Hyderabad, India 13–17, April. Childhood Blindness Prevention. WHO/PBL/87
Ajaiyeoba AI (1994) Childhood eye diseases in Ibadan. Afr J Med Med Sci 23:227–231
Onyekwe LO, Ajaiyeoba AI, Malu KN (1998) Visual impairment among school children and adolescents on Jos Plateau, Nigeria. Nig J Ophth 6(1):1–5
World Health Organisation (1975) International Classification of Diseases. Geneva 11:241–241
Avencens RI, Mersheld BC (1990) Vision problems in infants and children. Public Health And Community Optometry, 2nd edn, pp 118–119
Newcomb RD, Marshall EC (1990) New York National Society for Prevention of Blindness. Vision problems in the U.S, pp 53–70
Rose K, Younan C, Morgan I, Mitchell P (2003) Prevalence of undetected ocular conditions in a pilot sample of school children. Clin Experiment Ophthalmol 31(3):237–240
Onwasigwe EN, Umeh RE, Onwasigwe CN, Aniebue PN (1996) Referral pattern of children to the eye department of the University of Nigeria Teaching Hospital, Enugu, Nigeria. Nig J Ophth 1:5–6
Joss JD, Craig TJ (1999) Seasonal allergic conjunctivitis: overview and treatment update. J Am Osteopath Assoc 99(7):513–518
Wedner SH, Foster A et al (2000) Prevalence of eye diseases in primary school children in a rural area of Tanzania. Br J Ophthalmol 84:1291–1297
Montan PG, Ekstrom K et al (1999) vernal keratoconjunctivitis in Stockholm ophthalmic centre-epidemiological, functional and immunologic investigations. Acta Ophthalmol Scand 77(5):559–563
Taylor HR (2000) Refractive errors: magnitude of the need. J Comm Eye Health 13(33):1–2
Faderin MA, Ajaiyeoba AI (2001) Barriers to wearing glasses among primary school children in Lagos, Nigeria. Nig J Ophth 1(1):15–19
Vyas DB, Lee DA (2001) Eye conditions among 5–7 year old Asian—Pacific Islander school children in southern California. Optometry 72(7):426–34
Kaimpo WA, Kaimbo D (2002) A case report of a 10 year old with corneal hydrops associated with vernal conjunctivitis. Bull Soc Belge Ophthalmol 283:29–33
Magulike NO, Ezepue UF (2003) Corneal disease and childhood blindness:A retrospective hospital based study. Br J Ophth 2:75–79
Akinsola FB, Ajaiyeoba AI (2002) Causes of low vision and blindness in a blind school in Lagos, Nigeria. West Afr J Med 2(1):63–65
Arituk N et al (1999) The evaluation of ocular trauma in children between ages 0–12 years. Turk J Paediatr 41(1):43–52
Umeh RE, Umeh CO (1997) Causes of visual outcome of childhood eye injuries. Eye 11:489–495
Kyari F, Alhassan MB, Abiose A (2000) Pattern and outcome of paediatric ocular trauma-A 3-year review at National Eye Centre, Kaduna. Nig J Ophth 8(1):11–16
McGinnis F, Bryars JH (1992) Controlled study of ocular morbidity in school children born pre-term. Br J Ophth 76:520–524
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Ajaiyeoba, A.I., Isawumi, M.A., Adeoye, A.O. et al. Pattern of eye diseases and visual impairment among students in southwestern Nigeria. Int Ophthalmol 27, 287–292 (2007). https://doi.org/10.1007/s10792-007-9056-7
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DOI: https://doi.org/10.1007/s10792-007-9056-7