Ophthalmological screening of a paediatric cochlear implant population: a retrospective analysis and 12-year follow-up

Falzon, Kevin; Guérin, Mathilde; Fulcher, Tim; Viani, Laura

doi:10.1038/eye.2009.248

Cited by 11 publications

(16 citation statements)

References 27 publications

(15 reference statements)

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“…This difference may well be explained by our inclusion criterion of bilateral vestibular impairment and systematically requesting an ERG for those cases. Similarly, we detected a higher prevalence of refractive errors (75%) than previous reports, which was generally been estimated to be around 40-50% (28,29). This can reflect the differences in the definitions of myopia and hyperopia used as inclusion criteria.…”

Section: General Clinical Observationssupporting

confidence: 77%

“…An abnormal ERG had a significant correlation (p < 0.0001) with the genetic diagnosis of USH1 as seen in our 14 patients (Table 3). In USH1, the ERG is abnormal early, before the retinal appearance (14,19,28,32) and the responses deteriorate slowly. If the ERG is normal by the age of 6-7 years, it most probably will stay normal and can be relied on to exclude USH (14).…”

Section: The Role Of Ergmentioning

confidence: 99%

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The combination of vestibular impairment and congenital sensorineural hearing loss predisposes patients to ocular anomalies, including Usher syndrome

et al. 2017

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The co-occurrence of hearing impairment and visual dysfunction is devastating. Most deaf-blind etiologies are genetically determined, the commonest being Usher syndrome (USH). While studies of the congenitally deaf population reveal a variable degree of visual problems, there are no effective ophthalmic screening guidelines. We hypothesized that children with congenital sensorineural hearing loss (SNHL) and vestibular impairment were at an increased risk of having USH. A retrospective chart review of 33 cochlear implants recipients for severe to profound SNHL and measured vestibular dysfunction was performed to determine the ocular phenotype. All the cases had undergone ocular examination and electroretinogram (ERG). Patients with an abnormal ERG underwent genetic testing for USH. We found an underlying ocular abnormality in 81.81% (27/33) of cases; of which 75% had refractive errors, and 50% of those patients showed visual improvement with refractive correction. A total of 14 cases (42.42%; 14/33) had generalized rod-cone dysfunction on ERG suggestive of Usher syndrome type 1, confirmed by mutational analysis. This work shows that adding vestibular impairment as a criterion for requesting an eye exam and adding the ERG to detect USH increases the chances of detecting ocular anomalies, when compared with previous literature focusing only on congenital SNHL.

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Section: General Clinical Observationssupporting

confidence: 77%

Section: The Role Of Ergmentioning

confidence: 99%

The combination of vestibular impairment and congenital sensorineural hearing loss predisposes patients to ocular anomalies, including Usher syndrome

et al. 2017

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“…This study showed a slightly higher incidence (50%) of ocular pathologies in congenitally deaf patients. In the same manner, refractive disorders were the leading pathology, with a higher incidence of 44.9% (35 cases), compared to the 16%-42.7% found across previously published studies (4,7,(9)(10)(11)(16)(17)(18)(19)(20). Since our study group was composed of adult individuals, it was easy to detect even a small degree of refractive problems like myopia, which may increase during the adolescent years.…”

Section: Discussionsupporting

confidence: 57%

Ophthalmic pathologies in female subjects with bilateralcongenital sensorineural hearing loss

Köylü¹,

Gökçe

Sobacı

et al. 2016

Turk J Med Sci

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“…Moreover, less myopic cases were found in this group. Previous studies such as Hanioglu-Kargi, 4 Mafong, 14 Siatkowski, 15 and Falzon, 16 indicated that hyperopia is the most common refractive error in deaf students. Nevertheless, there are some studies that did not show remarkable differences between prevalence of hyperopia and myopia, and even a few studies like those of Sharma, 17 Leguire, 10 and Al-ani 9 indicated that myopia was more common.…”

Section: Discussionmentioning

confidence: 96%

“…Although most of the studies support our finding that hyperopia is the most common refractive error, their findings are not quite valid because they lack a control group. 4 , 14 , 15 , 16 …”

Section: Discussionmentioning

confidence: 99%

Eye problems in children with hearing impairment

Ostadimoghaddam

Mirhajian

Yekta

et al. 2015

Journal of Current Ophthalmology

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PurposeTo compare the prevalence of refractive errors, amblyopia, and strabismus between hearing-impaired and normal children (7–22 years old) in Mashhad.MethodsIn this cross-sectional study, cases were selected from hearing-impaired children in Mashhad. The control group consisted of children with no hearing problem. The sampling was done utilizing the cluster sampling method. All of the samples underwent refraction, cover test, and visual examinations.Results254 children in the hearing-impaired group (case) and 506 children in the control group were assessed. The mean spherical equivalent was 1.7 ± 1.9 D in the case group, which was significantly different from the control group (0.2 ± 1.5) (P < 0.001). The prevalence of hyperopia was 57.15% and 21.5% in deaf and normal children, respectively, but myopia was mostly seen in the control group (5.5% versus 11.9%, P = 0.007). The mean cylinder was 0.65 ± 1.3 D and 0.43 ± 0.62 D in deaf and normal subjects, respectively (P = 0.002). 12.2% of deaf subjects and 1.2% of normal subjects were amblyopic (P < 0.001), and the prevalence of strabismus was 3.1% in the case group and 2.6% in the control group (P = 0.645).ConclusionIn a comparison of children of the same ages, hearing-impaired children have significantly more eye problems; therefore, a possible relation between deafness and eye problems must exist. Paying attention to eye health assessment in hearing-impaired children may help prevent adding eye problems to hearing difficulties.

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Ophthalmological screening of a paediatric cochlear implant population: a retrospective analysis and 12-year follow-up

Cited by 11 publications

References 27 publications

The combination of vestibular impairment and congenital sensorineural hearing loss predisposes patients to ocular anomalies, including Usher syndrome

The combination of vestibular impairment and congenital sensorineural hearing loss predisposes patients to ocular anomalies, including Usher syndrome

Ophthalmic pathologies in female subjects with bilateralcongenital sensorineural hearing loss

Eye problems in children with hearing impairment

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