PortalPublikationenRefractive errors, visual impairment, and the use of low-vis...

Refractive errors, visual impairment, and the use of low-vision devices in albinism in Malawi

Standard

Refractive errors, visual impairment, and the use of low-vision devices in albinism in Malawi. / Schulze Schwering, M; Kumar, N; Bohrmann, D; Msukwa, G; Kalua, K; Kayange, P; Spitzer, M S.

in: GRAEF ARCH CLIN EXP, Jahrgang 253, Nr. 4, 04.2015, S. 655-61.

Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung

Harvard

Schulze Schwering, M, Kumar, N, Bohrmann, D, Msukwa, G, Kalua, K, Kayange, P & Spitzer, MS 2015, 'Refractive errors, visual impairment, and the use of low-vision devices in albinism in Malawi', GRAEF ARCH CLIN EXP, Jg. 253, Nr. 4, S. 655-61. https://doi.org/10.1007/s00417-015-2943-0

APA

Schulze Schwering, M., Kumar, N., Bohrmann, D., Msukwa, G., Kalua, K., Kayange, P., & Spitzer, M. S. (2015). Refractive errors, visual impairment, and the use of low-vision devices in albinism in Malawi. GRAEF ARCH CLIN EXP, 253(4), 655-61. https://doi.org/10.1007/s00417-015-2943-0

Vancouver

Schulze Schwering M, Kumar N, Bohrmann D, Msukwa G, Kalua K, Kayange P et al. Refractive errors, visual impairment, and the use of low-vision devices in albinism in Malawi. GRAEF ARCH CLIN EXP. 2015 Apr;253(4):655-61. https://doi.org/10.1007/s00417-015-2943-0

Bibtex

@article{523b13420e744cc4a39f98bdca78bab2,
title = "Refractive errors, visual impairment, and the use of low-vision devices in albinism in Malawi",
abstract = "BACKGROUND: This study focuses on the refractive implications of albinism in Malawi, which is mostly associated with the burden of visual impairment. The main goal was to describe the refractive errors and to analyze whether patients with albinism in Malawi, Sub-Saharan Africa, benefit from refraction.METHODS: Age, sex, refractive data, uncorrected and best-corrected visual acuity (UCVA, BCVA), colour vision, contrast sensitivity, and the prescription of sunglasses and low vision devices were collected for a group of 120 albino individuals with oculocutaneous albinism (OCA). Refractive errors were evaluated objectively and subjectively by retinoscopy, and followed by cycloplegic refraction to reconfirm the results. Best-corrected visual acuity (BCVA) was also assessed binocularly.RESULTS: One hundred and twenty albino subjects were examined, ranging in age from 4 to 25 years (median 12 years), 71 (59 %) boys and 49 (41 %) girls. All exhibited horizontal pendular nystagmus. Mean visual acuity improved from 0.98 (0.33) logMAR to 0.77 (0.15) logMAR after refraction (p < 0.001). The best improvement of VA was achieved in patients with mild to moderate myopia. Patients with albinism who were hyperopic more than +1.5 D hardly improved from refraction. With the rule (WTR) astigmatism was more present (37.5 %) than against the rule (ATR) astigmatism (3.8 %). Patients with astigmatism less than 1.5 D improved in 15/32 of cases (47 %) by 2 lines or more. Patients with astigmatism equal to or more than 1.5 D in any axis improved in 26/54 of cases (48 %) by 2 lines or more.CONCLUSIONS: Refraction improves visual acuity of children with oculocutaneous albinism in a Sub-Saharan African population in Malawi. The mean improvement was 2 logMAR units.",
keywords = "Adolescent, Adult, Albinism, Oculocutaneous, Child, Child, Preschool, Female, Humans, Malawi, Male, Nystagmus, Pathologic, Refraction, Ocular, Refractive Errors, Retinoscopy, Retrospective Studies, Sensory Aids, Vision, Low, Visual Acuity, Visually Impaired Persons, Young Adult, Journal Article",
author = "{Schulze Schwering}, M and N Kumar and D Bohrmann and G Msukwa and K Kalua and P Kayange and Spitzer, {M S}",
year = "2015",
month = apr,
doi = "10.1007/s00417-015-2943-0",
language = "English",
volume = "253",
pages = "655--61",
journal = "GRAEF ARCH CLIN EXP",
issn = "0721-832X",
publisher = "Springer",
number = "4",

}

RIS

TY - JOUR

T1 - Refractive errors, visual impairment, and the use of low-vision devices in albinism in Malawi

AU - Schulze Schwering, M

AU - Kumar, N

AU - Bohrmann, D

AU - Msukwa, G

AU - Kalua, K

AU - Kayange, P

AU - Spitzer, M S

PY - 2015/4

Y1 - 2015/4

N2 - BACKGROUND: This study focuses on the refractive implications of albinism in Malawi, which is mostly associated with the burden of visual impairment. The main goal was to describe the refractive errors and to analyze whether patients with albinism in Malawi, Sub-Saharan Africa, benefit from refraction.METHODS: Age, sex, refractive data, uncorrected and best-corrected visual acuity (UCVA, BCVA), colour vision, contrast sensitivity, and the prescription of sunglasses and low vision devices were collected for a group of 120 albino individuals with oculocutaneous albinism (OCA). Refractive errors were evaluated objectively and subjectively by retinoscopy, and followed by cycloplegic refraction to reconfirm the results. Best-corrected visual acuity (BCVA) was also assessed binocularly.RESULTS: One hundred and twenty albino subjects were examined, ranging in age from 4 to 25 years (median 12 years), 71 (59 %) boys and 49 (41 %) girls. All exhibited horizontal pendular nystagmus. Mean visual acuity improved from 0.98 (0.33) logMAR to 0.77 (0.15) logMAR after refraction (p < 0.001). The best improvement of VA was achieved in patients with mild to moderate myopia. Patients with albinism who were hyperopic more than +1.5 D hardly improved from refraction. With the rule (WTR) astigmatism was more present (37.5 %) than against the rule (ATR) astigmatism (3.8 %). Patients with astigmatism less than 1.5 D improved in 15/32 of cases (47 %) by 2 lines or more. Patients with astigmatism equal to or more than 1.5 D in any axis improved in 26/54 of cases (48 %) by 2 lines or more.CONCLUSIONS: Refraction improves visual acuity of children with oculocutaneous albinism in a Sub-Saharan African population in Malawi. The mean improvement was 2 logMAR units.

AB - BACKGROUND: This study focuses on the refractive implications of albinism in Malawi, which is mostly associated with the burden of visual impairment. The main goal was to describe the refractive errors and to analyze whether patients with albinism in Malawi, Sub-Saharan Africa, benefit from refraction.METHODS: Age, sex, refractive data, uncorrected and best-corrected visual acuity (UCVA, BCVA), colour vision, contrast sensitivity, and the prescription of sunglasses and low vision devices were collected for a group of 120 albino individuals with oculocutaneous albinism (OCA). Refractive errors were evaluated objectively and subjectively by retinoscopy, and followed by cycloplegic refraction to reconfirm the results. Best-corrected visual acuity (BCVA) was also assessed binocularly.RESULTS: One hundred and twenty albino subjects were examined, ranging in age from 4 to 25 years (median 12 years), 71 (59 %) boys and 49 (41 %) girls. All exhibited horizontal pendular nystagmus. Mean visual acuity improved from 0.98 (0.33) logMAR to 0.77 (0.15) logMAR after refraction (p < 0.001). The best improvement of VA was achieved in patients with mild to moderate myopia. Patients with albinism who were hyperopic more than +1.5 D hardly improved from refraction. With the rule (WTR) astigmatism was more present (37.5 %) than against the rule (ATR) astigmatism (3.8 %). Patients with astigmatism less than 1.5 D improved in 15/32 of cases (47 %) by 2 lines or more. Patients with astigmatism equal to or more than 1.5 D in any axis improved in 26/54 of cases (48 %) by 2 lines or more.CONCLUSIONS: Refraction improves visual acuity of children with oculocutaneous albinism in a Sub-Saharan African population in Malawi. The mean improvement was 2 logMAR units.

KW - Adolescent

KW - Adult

KW - Albinism, Oculocutaneous

KW - Child

KW - Child, Preschool

KW - Female

KW - Humans

KW - Malawi

KW - Male

KW - Nystagmus, Pathologic

KW - Refraction, Ocular

KW - Refractive Errors

KW - Retinoscopy

KW - Retrospective Studies

KW - Sensory Aids

KW - Vision, Low

KW - Visual Acuity

KW - Visually Impaired Persons

KW - Young Adult

KW - Journal Article

U2 - 10.1007/s00417-015-2943-0

DO - 10.1007/s00417-015-2943-0

M3 - SCORING: Journal article

C2 - 25673250

VL - 253

SP - 655

EP - 661

JO - GRAEF ARCH CLIN EXP

JF - GRAEF ARCH CLIN EXP

SN - 0721-832X

IS - 4

ER -