Refractive Error and Visual Impairment Among School Children: Result of a South-Eastern Nigerian Regional Survey.

Clinical Ophthalmology
F C Maduka-OkaforR E Umeh

Abstract

To determine the prevalence refractive errors and causes of visual impairment in school children in the south-eastern region of Nigeria. School-based cross-sectional samples of children 5 to 15 of age in both urban and rural areas were profiled through cluster sampling. The main outcome measures were presenting, uncorrected, and best-corrected visual acuity using the Refractive Error in School-age Children (RESC) protocol. A total of 5723 children were examined during the study period comprising 2686 (46.9%) males and 3037 (53.1%) females; (M:F ratio 0.9:1) and aged 10.49±2.74SD of mean (range, 5 to 15 years). The age group 12 to <13 accounted for the highest 776 (13.6%) number of the study participants. The uncorrected visual acuity (VA) of <20/40 (6/12) was seen in 188 (3.4%) of the study participants while the presenting and best-corrected visual acuity of <20/40 (6/12) were noted in 182 (3.4%) children and 14 (0.2%) children, respectively. Refractive error was the principal cause of visual impairment. Prevalence of refractive error is low. Myopia is the principal cause of refractive error occurring more in females and in urban schools. The main cause of visual impairment is refractive error, and most children that need spec...Continue Reading

References

Apr 15, 2000·American Journal of Ophthalmology·A D NegrelL B Ellwein
Apr 15, 2000·American Journal of Ophthalmology·J ZhaoL B Ellwein
Apr 15, 2000·American Journal of Ophthalmology·G P PokharelL B Ellwein
Apr 15, 2000·American Journal of Ophthalmology·E MaulL B Ellwein
Apr 26, 2003·The British Journal of Ophthalmology·B P NepalA K Sharma
Aug 27, 2003·Investigative Ophthalmology & Visual Science·Kovin S NaidooLeon B Ellwein
Feb 27, 2004·Investigative Ophthalmology & Visual Science·Mingguang HeLeon B Ellwein
Apr 14, 2004·Archives of Ophthalmology·John H KempenUNKNOWN Eye Diseases Prevalence Research Group
Sep 27, 2007·Ophthalmic Epidemiology·Leslie Hyman
Feb 1, 2008·Bulletin of the World Health Organization·Serge ResnikoffGopal P Pokharel
Oct 3, 2008·Investigative Ophthalmology & Visual Science·Solange R SalomãoLeon B Ellwein
Oct 26, 2011·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Farhad RezvanAbbas Ali Yekta
Nov 26, 2013·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Ben D KumahKovin Naidoo
Nov 8, 2014·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Stephen ThompsonJames Loughman
Apr 7, 2016·Journal of Ophthalmic & Vision Research·Zhale RajaviKourosh Sheibani
Jan 21, 2020·Indian Journal of Ophthalmology·Deepanshu AgrawalDeepshikha Agrawal

❮ Previous
Next ❯

Software Mentioned

OpenEpi
Statistical Package for Social Sciences ( SPSS )

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Nepalese Journal of Ophthalmology : a Biannual Peer-reviewed Academic Journal of the Nepal Ophthalmic Society : NEPJOPH
S RaiR Karki
Eastern Mediterranean Health Journal = La Revue De Santé De La Méditerranée Orientale = Al-Majallah Al-ṣiḥḥīyah Li-sharq Al-mutawassiṭ
Zahra Abdi AhmedWaleed Alghamdi
© 2021 Meta ULC. All rights reserved