Should we add visual acuity ratios to referral criteria for potential cerebral visual impairment?
Purpose: To determine whether the assessment of visual acuity ratios might improve the referral of children with (sub)normal visual acuity but at risk of cerebral visual impairment. Methods: In an exploratory study, we assessed visual acuity, crowding ratio and the ratios between grating acuity (Tel...
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doaj-8624cc57a0894e51beef5bedec3669082020-11-25T01:48:31ZengElsevierJournal of Optometry1888-42962017-04-011029510310.1016/j.optom.2016.01.003Should we add visual acuity ratios to referral criteria for potential cerebral visual impairment?Ymie J. van der Zee0Peter Stiers1Heleen M. Evenhuis2Intellectual Disability Medicine, Department of General Practice, Erasmus University Medical Center, Rotterdam, The NetherlandsDepartment of Neuropsychology & Psychopharmacology, University Maastricht, Maastricht, The NetherlandsIntellectual Disability Medicine, Department of General Practice, Erasmus University Medical Center, Rotterdam, The NetherlandsPurpose: To determine whether the assessment of visual acuity ratios might improve the referral of children with (sub)normal visual acuity but at risk of cerebral visual impairment. Methods: In an exploratory study, we assessed visual acuity, crowding ratio and the ratios between grating acuity (Teller Acuity Cards-II) and optotype acuity (Cambridge Crowding Cards) in 60 typically developing school children (mean age 5y8m ± 1y1m), 21 children with ocular abnormalities only (5y7m ± 1y9m) and 26 children with (suspected) brain damage (5y7m ± 1y11m). Sensitivities and specificities were calculated for targets and controls from the perspective of different groups of diagnosticians: youth health care professionals (target: children with any visual abnormalities), ophthalmologists and low vision experts (target: children at risk of cerebral visual impairment). Results: For youth health care professionals subnormal visual acuity had the best sensitivity (76%) and specificity (70%). For ophthalmologists and low vision experts the crowding ratio had the best sensitivity (67%) and specificity (79 and 86%). Conclusion: Youth health care professionals best continue applying subnormal visual acuity for screening, whereas ophthalmologists and low vision experts best add the crowding ratio to their routine diagnostics, to distinguish children at risk of visual impairment in the context of brain damage from children with ocular pathology only.http://www.sciencedirect.com/science/article/pii/S1888429616000054Visual acuityVisual acuity ratiosBrain damageReferral criteria |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ymie J. van der Zee Peter Stiers Heleen M. Evenhuis |
spellingShingle |
Ymie J. van der Zee Peter Stiers Heleen M. Evenhuis Should we add visual acuity ratios to referral criteria for potential cerebral visual impairment? Journal of Optometry Visual acuity Visual acuity ratios Brain damage Referral criteria |
author_facet |
Ymie J. van der Zee Peter Stiers Heleen M. Evenhuis |
author_sort |
Ymie J. van der Zee |
title |
Should we add visual acuity ratios to referral criteria for potential cerebral visual impairment? |
title_short |
Should we add visual acuity ratios to referral criteria for potential cerebral visual impairment? |
title_full |
Should we add visual acuity ratios to referral criteria for potential cerebral visual impairment? |
title_fullStr |
Should we add visual acuity ratios to referral criteria for potential cerebral visual impairment? |
title_full_unstemmed |
Should we add visual acuity ratios to referral criteria for potential cerebral visual impairment? |
title_sort |
should we add visual acuity ratios to referral criteria for potential cerebral visual impairment? |
publisher |
Elsevier |
series |
Journal of Optometry |
issn |
1888-4296 |
publishDate |
2017-04-01 |
description |
Purpose: To determine whether the assessment of visual acuity ratios might improve the referral of children with (sub)normal visual acuity but at risk of cerebral visual impairment.
Methods: In an exploratory study, we assessed visual acuity, crowding ratio and the ratios between grating acuity (Teller Acuity Cards-II) and optotype acuity (Cambridge Crowding Cards) in 60 typically developing school children (mean age 5y8m ± 1y1m), 21 children with ocular abnormalities only (5y7m ± 1y9m) and 26 children with (suspected) brain damage (5y7m ± 1y11m). Sensitivities and specificities were calculated for targets and controls from the perspective of different groups of diagnosticians: youth health care professionals (target: children with any visual abnormalities), ophthalmologists and low vision experts (target: children at risk of cerebral visual impairment).
Results: For youth health care professionals subnormal visual acuity had the best sensitivity (76%) and specificity (70%). For ophthalmologists and low vision experts the crowding ratio had the best sensitivity (67%) and specificity (79 and 86%).
Conclusion: Youth health care professionals best continue applying subnormal visual acuity for screening, whereas ophthalmologists and low vision experts best add the crowding ratio to their routine diagnostics, to distinguish children at risk of visual impairment in the context of brain damage from children with ocular pathology only. |
topic |
Visual acuity Visual acuity ratios Brain damage Referral criteria |
url |
http://www.sciencedirect.com/science/article/pii/S1888429616000054 |
work_keys_str_mv |
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