Impact of a 10-Year Eye Care Program in Sokoto, Nigeria: Changing Pattern of Prevalence and Causes of Blindness and Visual Impairment.
Aged
Aged, 80 and over
Blindness
/ epidemiology
Cataract
/ complications
Corneal Diseases
/ complications
Delivery of Health Care
/ organization & administration
Female
Glaucoma
/ complications
Health Surveys
Humans
Male
Middle Aged
Nigeria
/ epidemiology
Physical Examination
Prevalence
Refractive Errors
/ complications
Vision, Low
/ epidemiology
Visually Impaired Persons
/ statistics & numerical data
Avoidable blindness
eye care
impact
rapid assessment of avoidable blindness
Journal
Middle East African journal of ophthalmology
ISSN: 0975-1599
Titre abrégé: Middle East Afr J Ophthalmol
Pays: India
ID NLM: 101521797
Informations de publication
Date de publication:
Historique:
entrez:
24
9
2019
pubmed:
24
9
2019
medline:
26
11
2019
Statut:
epublish
Résumé
This study was undertaken to ascertain the current magnitude and causes of blindness and visual impairment in persons aged 50 years and over and to assess the impact of a 10-year eye care program in Sokoto State, Nigeria. A rapid assessment of avoidable blindness (RAAB) survey (in persons 50 years and over) was conducted in 2016. Participants were selected in Wurno health zone using a two-stage cluster randomized sampling with probability proportional to size. Operational definitions were based on RAAB and World Health Organization eye examination record definitions. Eye care program documents were reviewed and data from a baseline survey undertaken in 2005 were reanalyzed. A response of 89.1% (2405 of 2700 participants) was obtained in the 2016 survey. With available correction, the unadjusted prevalence of blindness was 7.7% (95% confidence interval [CI]: 6.4, 8.9). The odds of blindness were 1.8 times higher in females than males (95% CI: 1.3, 2.4; The blindness prevalence is high, and the major causes are avoidable in the health zone. The findings suggest that investments in the program over the last 10 years might have led to almost a halving in the prevalence of blindness in th e population. However, the small sample size of persons 50+ years from Wurno zone in the 2005 survey necessitate caution when comparing the 2005 and the 2016 surveys.
Sections du résumé
BACKGROUND
BACKGROUND
This study was undertaken to ascertain the current magnitude and causes of blindness and visual impairment in persons aged 50 years and over and to assess the impact of a 10-year eye care program in Sokoto State, Nigeria.
METHODS
METHODS
A rapid assessment of avoidable blindness (RAAB) survey (in persons 50 years and over) was conducted in 2016. Participants were selected in Wurno health zone using a two-stage cluster randomized sampling with probability proportional to size. Operational definitions were based on RAAB and World Health Organization eye examination record definitions. Eye care program documents were reviewed and data from a baseline survey undertaken in 2005 were reanalyzed.
RESULTS
RESULTS
A response of 89.1% (2405 of 2700 participants) was obtained in the 2016 survey. With available correction, the unadjusted prevalence of blindness was 7.7% (95% confidence interval [CI]: 6.4, 8.9). The odds of blindness were 1.8 times higher in females than males (95% CI: 1.3, 2.4;
CONCLUSION
CONCLUSIONS
The blindness prevalence is high, and the major causes are avoidable in the health zone. The findings suggest that investments in the program over the last 10 years might have led to almost a halving in the prevalence of blindness in th e population. However, the small sample size of persons 50+ years from Wurno zone in the 2005 survey necessitate caution when comparing the 2005 and the 2016 surveys.
Identifiants
pubmed: 31543668
doi: 10.4103/meajo.MEAJO_113_17
pii: MEAJO-26-101
pmc: PMC6737780
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
101-106Déclaration de conflit d'intérêts
There are no conflicts of interest.
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