Blindness and visual impairment in north central Nigeria: a hospital based study. 2013

K N Malu
Adoose Specialist Hospital, Jos Plateau State, Nigeria. keziahmalu@gmail.com

OBJECTIVE To determine the pattern of visual impairment and blindness in patients seen at a hospital in North Central Nigeria. METHODS All new eye patients seen at Adoose Specialist Hospital, Jos, North Central Nigeria with conditions potentially leading to blindness and visual impairment over a ten year period were studied.The patients' demographic information, diagnosis and visual acuity were retrieved from the records. RESULTS A total of 2536 patients were reviewed. There were 1315 (51.9%) males. Bilateral blindness was seen in 279 (11.0%) of the patients. Visual impairment was seen in 745 (29.4%) patients. Severe visual impairment (SVI) was seen in 4(0.2%), moderate (MoVI) in 225 (8.9%) and mild (MVI) in 237(9.3%). Blindness and visual impairment increased significantly with age. Blindness was most prevalent among the farmers (40.2%), followed by the house wives (24.4%). It was attributable to refractive error in 33.3%, cataract in 28.3%, glaucoma in 13.3%, posterior segment disease in 8.2%, glaucoma/cataract in 7.9%, cataract/posterior segment disease in 1.8%, trauma and uveitis each in 1.4%, with other ocular conditions (affecting the globe) seen in 1.1% and corneal disorders in 0.7%. Proportionately more males had glaucoma, trauma, corneal disorders and posterior segment disease, while females predominated with refractive error, conjunctivitis and cataract. CONCLUSIONS Refractive error, cataract and glaucoma were the major causes of blindness, underpinning the significance of these conditions in ocular morbidity.

UI MeSH Term Description Entries
D007223 Infant A child between 1 and 23 months of age. Infants
D008297 Male Males
D009549 Nigeria A republic in western Africa, south of NIGER between BENIN and CAMEROON. Its capital is Abuja. Federal Republic of Nigeria
D012030 Refractive Errors Deviations from the average or standard indices of refraction of the eye through its dioptric or refractive apparatus. Ametropia,Refractive Disorders,Ametropias,Disorder, Refractive,Disorders, Refractive,Error, Refractive,Errors, Refractive,Refractive Disorder,Refractive Error
D001766 Blindness The inability to see or the loss or absence of perception of visual stimuli. This condition may be the result of EYE DISEASES; OPTIC NERVE DISEASES; OPTIC CHIASM diseases; or BRAIN DISEASES affecting the VISUAL PATHWAYS or OCCIPITAL LOBE. Amaurosis,Bilateral Blindness,Blindness, Bilateral,Blindness, Legal,Blindness, Monocular,Blindness, Unilateral,Sudden Visual Loss,Unilateral Blindness,Blindness, Acquired,Blindness, Complete,Blindness, Hysterical,Blindness, Transient,Acquired Blindness,Amauroses,Bilateral Blindnesses,Complete Blindness,Hysterical Blindness,Legal Blindness,Monocular Blindness,Sudden Visual Losses,Transient Blindness,Visual Loss, Sudden
D002386 Cataract Partial or complete opacity on or in the lens or capsule of one or both eyes, impairing vision or causing blindness. The many kinds of cataract are classified by their morphology (size, shape, location) or etiology (cause and time of occurrence). (Dorland, 27th ed) Cataract, Membranous,Lens Opacities,Pseudoaphakia,Cataracts,Cataracts, Membranous,Lens Opacity,Membranous Cataract,Membranous Cataracts,Opacities, Lens,Opacity, Lens,Pseudoaphakias
D003710 Demography Statistical interpretation and description of a population with reference to distribution, composition, or structure. Demographer,Demographic,Demographic and Health Survey,Population Distribution,Accounting, Demographic,Analyses, Demographic,Analyses, Multiregional,Analysis, Period,Brass Technic,Brass Technique,Demographers,Demographic Accounting,Demographic Analysis,Demographic Factor,Demographic Factors,Demographic Impact,Demographic Impacts,Demographic Survey,Demographic Surveys,Demographic and Health Surveys,Demographics,Demography, Historical,Demography, Prehistoric,Factor, Demographic,Factors, Demographic,Family Reconstitution,Historical Demography,Impact, Demographic,Impacts, Demographic,Multiregional Analysis,Period Analysis,Population Spatial Distribution,Prehistoric Demography,Reverse Survival Method,Stable Population Method,Survey, Demographic,Surveys, Demographic,Analyses, Period,Analysis, Demographic,Analysis, Multiregional,Demographic Analyses,Demographies, Historical,Demographies, Prehistoric,Distribution, Population,Distribution, Population Spatial,Distributions, Population,Distributions, Population Spatial,Family Reconstitutions,Historical Demographies,Method, Reverse Survival,Method, Stable Population,Methods, Reverse Survival,Methods, Stable Population,Multiregional Analyses,Period Analyses,Population Distributions,Population Methods, Stable,Population Spatial Distributions,Prehistoric Demographies,Reconstitution, Family,Reconstitutions, Family,Reverse Survival Methods,Spatial Distribution, Population,Spatial Distributions, Population,Stable Population Methods,Technic, Brass,Technique, Brass
D005260 Female Females
D005901 Glaucoma An ocular disease, occurring in many forms, having as its primary characteristics an unstable or a sustained increase in the intraocular pressure which the eye cannot withstand without damage to its structure or impairment of its function. The consequences of the increased pressure may be manifested in a variety of symptoms, depending upon type and severity, such as excavation of the optic disk, hardness of the eyeball, corneal anesthesia, reduced visual acuity, seeing of colored halos around lights, disturbed dark adaptation, visual field defects, and headaches. (Dictionary of Visual Science, 4th ed) Glaucomas
D006760 Hospitalization The confinement of a patient in a hospital. Hospitalizations

Related Publications

K N Malu
September 2012, The Nigerian postgraduate medical journal,
K N Malu
January 2022, Nigerian medical journal : journal of the Nigeria Medical Association,
K N Malu
January 1994, Tropical and geographical medicine,
K N Malu
January 2011, South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde,
K N Malu
November 2011, Eastern Mediterranean health journal = La revue de sante de la Mediterranee orientale = al-Majallah al-sihhiyah li-sharq al-mutawassit,
K N Malu
October 2008, West African journal of medicine,
Copied contents to your clipboard!