Ophthalmologic abnormalities among deaf students in Kaduna, Northern Nigeria

Abah, ER; Oladigbolu, Kehinde; Samaila, Elsie; Merali, Hasan S.; Ahmed, Abdulazeez; Abubakar, TH

doi:10.4103/1596-3519.76573

Cited by 20 publications

(25 citation statements)

References 15 publications

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“…; Abah et al. ) have greater reliance on non‐reading ‘illiterate’ tests possibly indicating the greater difficulties these children have in acquiring basic reading skills when compared with their hearing counterparts or simply that the levels of literacy are much lower in these countries.…”

Section: Visual Defects – Refractive and Binocular Vision Abnormalitiesmentioning

confidence: 99%

“…; Abah et al. ) with the prevalence varying between 8% (≥2.25 D; Pollard & Neumaier – non‐cycloplegic refraction) and 31.5% (≥2.50 D; Siatkowski et al. ; cycloplegic refraction) as compared to between 4% (≥2.00 D; Fan et al.…”

Section: Visual Defects – Refractive and Binocular Vision Abnormalitiesmentioning

confidence: 99%

“…Although measurement of near vision was undertaken by Khandekar et al (2009), no near vision results were presented. It is evident that many of the deaf studies from developing countries (Gogate et al 2009;Khandekar et al 2009;Abah et al 2011) have greater reliance on non-reading 'illiterate' tests possibly indicating the greater difficulties these children have in acquiring basic reading skills when compared with their hearing counterparts or simply that the levels of literacy are much lower in these countries.…”

Section: Visual Defectsrefractive and Binocular Vision Abnormalitiesmentioning

confidence: 99%

“…Hyperopic ametropia associated with deafness is the most commonly reported refractive error (Alexander 1973;Mohindra 1976;Regenbogen & Godel 1985;Siatkowski et al 1993;Armitage et al 1995;Abah et al 2011) with the prevalence varying between 8% (≥2.25 D; Pollard & Neumaier 1974non-cycloplegic refraction) and 31.5% (≥2.50 D; Siatkowski et al 1993; cycloplegic refraction) as compared to between 4% (≥2.00 D; Fan et al 2004) and 12.8% (≥1.25 D; Kleinstein et al 2003) in a normal hearing population for cycloplegic refractions and 7.7% (≥1.50 D; Junghans et al 2002) for non-cycloplegic refractions.…”

Section: Hyperopiamentioning

confidence: 99%

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Visual performance and ocular abnormalities in deaf children and young adults: a literature review

Hollingsworth

Ludlow

Wilkins

et al. 2013

Acta Ophthalmologica

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ABSTRACT.Visual defects are common in deaf individuals. Refractive error and ocular motor abnormalities are frequently reported, with hyperopia, myopia, astigmatism and anomalies of binocular vision, all showing a greater prevalence in deaf individuals compared with the general population. Near visual function in deaf individuals has been relatively neglected in the literature to date. Comparisons between studies are problematic due to differences in methodology and population characteristics. Any untreated visual defect has the potential to impair the development of language, with consequences for education more generally, and there is a need to improve screening and treatments of deaf children.

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Section: Visual Defects – Refractive and Binocular Vision Abnormalitiesmentioning

confidence: 99%

Section: Visual Defects – Refractive and Binocular Vision Abnormalitiesmentioning

confidence: 99%

Section: Visual Defectsrefractive and Binocular Vision Abnormalitiesmentioning

confidence: 99%

Section: Hyperopiamentioning

confidence: 99%

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Visual performance and ocular abnormalities in deaf children and young adults: a literature review

Hollingsworth

Ludlow

Wilkins

et al. 2013

Acta Ophthalmologica

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“…erros refratários, perturbação da visão binocular, ambliopia, estrabismo, perturbações visuais e cegueira). 24,25 A avaliação oftalmológica destas crianças, por rotina, pode permitir diagnósticos e tratamentos mais precoces. 7,26 As patologias associadas ao neurodesenvolvimento afetam cerca de 30% destas crianças (p.ex.…”

Section: Introductionunclassified

Surdez Congénita ou Precocemente Adquirida: Do Rastreio ao Seguimento, um Retrato de Portugal

Oliveira

Machado²,

Zenha

et al. 2019

Acta Med Port

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Introduction: Congenital deafness or early acquired deafness affects 1 to 3 out of 1000 newborns without risk factors and 20 to 40 out of 1000 newborns with risk factors. The universal newborn hearing screening enables its early identification. Children with congenital deafness/early acquired deafness have a higher prevalence of other conditions, especially ophthalmologic and neurodevelopmental ones, and at least 30% to 40% have at least one associated comorbidity.Material and Methods: We carried out a cross-sectional, multicenter study in which 83% (n = 30) of the hospitals/maternity hospitals of the National Health Service participated.Results: All surveyed hospitals/maternity hospitals routinely performed universal newborn hearing screening to all newborns before discharge; 63% referred children with risk factors for hearing loss to Otorhinolaryngology. All children with congenital deafness/early acquired deafness are referred to: Pediatrics in 23% hospitals/maternity hospitals. In 23 hospitals/maternity hospitals, all children with congenital deafness/early acquired deafness are referred to: Speech Therapy in 44% hospitals/ maternity hospitals; Ophthalmology in 17% hospitals/maternity hospitals; National System of Early Intervention in Childhood in 30% hospitals/maternity hospitals; 22% of hospitals/maternity hospitals refer all children with congenital deafness/early acquired deafness, with no identified cause, to Clinical Genetics clinics. The number of diagnoses of deafness in the years 2014 and 2015 was 2.5 and 1.5 per 1000 newborns, respectively, in 15 hospitals/maternity hospitals.Discussion: Awareness of universal newborn hearing screening seems to be widely spread in the National Health Service. The number of children with SC / SPA, as well as the percentage of different types of deafness diagnosed, were identical to those found in other studies and shows its importance. The assessment / follow-up of these children by specialties other than the otolaryngology was heterogeneous in different health entities and revealed that not all children with risk factors for deafness follow up advised by existing standards.Conclusion: Results show that Portugal made an important path in the screening and follow-up of children with SC / SPA. It is important, with the ultimate aim of continually improving the care of these children, to reflect on the involvement of specialties other than otolaryngology, such as the National Early Childhood Intervention System in the follow-up of these children.

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Prevalence and causes of visual impairment among hearing impaired students in Lagos, Nigeria

Abikoye

Aribaba

Musa

et al. 2020

International Journal of Pediatric Otorhinolaryngology

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Ophthalmologic abnormalities among deaf students in Kaduna, Northern Nigeria

Abstract: Since these deaf students use their sight to compensate for the deafness, routine ophthalmologic examination should be carried out on them so that ophthalmologic abnormalities are detected early and treatment offered for remediable diseases.

Cited by 20 publications

References 15 publications

Visual performance and ocular abnormalities in deaf children and young adults: a literature review

Visual performance and ocular abnormalities in deaf children and young adults: a literature review

Surdez Congénita ou Precocemente Adquirida: Do Rastreio ao Seguimento, um Retrato de Portugal

Prevalence and causes of visual impairment among hearing impaired students in Lagos, Nigeria

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