Visual impairment as a function of visual acuity in both eyes and its impact on patient reported preferences.

<h4>Purpose</h4>To assess the impact of VA loss on patient reported utilities taking both eyes into account compared to taking only the better or the worse eye into account.<h4>Methods</h4>In this cross-sectional study 1085 patients and 254 controls rated preferences with the...

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Autores principales: Robert P Finger, Eva Fenwick, Christoph W Hirneiss, Arthur Hsueh, Robyn H Guymer, Ecosse L Lamoureux, Jill E Keeffe
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Publicado: Public Library of Science (PLoS) 2013
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Acceso en línea:https://doaj.org/article/49d23c1ae4b74edaac8bb10a5416d2f8
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spelling oai:doaj.org-article:49d23c1ae4b74edaac8bb10a5416d2f82021-11-18T08:43:23ZVisual impairment as a function of visual acuity in both eyes and its impact on patient reported preferences.1932-620310.1371/journal.pone.0081042https://doaj.org/article/49d23c1ae4b74edaac8bb10a5416d2f82013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24339893/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Purpose</h4>To assess the impact of VA loss on patient reported utilities taking both eyes into account compared to taking only the better or the worse eye into account.<h4>Methods</h4>In this cross-sectional study 1085 patients and 254 controls rated preferences with the generic health-related (EQ-5D; n = 868) and vision-specific (Vision and Quality of Life Index (VisQoL); n = 837) multi-attribute utility instruments (MAUIs). Utilities were calculated for three levels of VA in the better and worse eyes, as well as for 6 different vision states based on combinations of the better and worse eye VA.<h4>Results</h4>Using the VisQoL, utility scores decreased significantly with deteriorating vision in both the better and worse eyes when analysed separately. When stratified by the 6 vision states, VisQoL utilities decreased as VA declined in the worse eye despite stable VA in the better eye. Differences in VisQoL scores were statistically significant for cases where the better eye had no vision impairment and the worse seeing fellow eye had mild, moderate or severe vision impairment. In contrast, the EQ-5D failed to capture changes in better or worse eye VA, or any of the six vision states.<h4>Conclusions</h4>Calculating utilities based only on better eye VA or using a generic MAUI is likely to underestimate the impact of vision impairment, particularly when the better eye has no or little VA loss and the worse eye is moderately to severely visually impaired. These findings have considerable implications for the assessment of overall visual impairment as well as economic evaluations within eye health.Robert P FingerEva FenwickChristoph W HirneissArthur HsuehRobyn H GuymerEcosse L LamoureuxJill E KeeffePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 12, p e81042 (2013)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Robert P Finger
Eva Fenwick
Christoph W Hirneiss
Arthur Hsueh
Robyn H Guymer
Ecosse L Lamoureux
Jill E Keeffe
Visual impairment as a function of visual acuity in both eyes and its impact on patient reported preferences.
description <h4>Purpose</h4>To assess the impact of VA loss on patient reported utilities taking both eyes into account compared to taking only the better or the worse eye into account.<h4>Methods</h4>In this cross-sectional study 1085 patients and 254 controls rated preferences with the generic health-related (EQ-5D; n = 868) and vision-specific (Vision and Quality of Life Index (VisQoL); n = 837) multi-attribute utility instruments (MAUIs). Utilities were calculated for three levels of VA in the better and worse eyes, as well as for 6 different vision states based on combinations of the better and worse eye VA.<h4>Results</h4>Using the VisQoL, utility scores decreased significantly with deteriorating vision in both the better and worse eyes when analysed separately. When stratified by the 6 vision states, VisQoL utilities decreased as VA declined in the worse eye despite stable VA in the better eye. Differences in VisQoL scores were statistically significant for cases where the better eye had no vision impairment and the worse seeing fellow eye had mild, moderate or severe vision impairment. In contrast, the EQ-5D failed to capture changes in better or worse eye VA, or any of the six vision states.<h4>Conclusions</h4>Calculating utilities based only on better eye VA or using a generic MAUI is likely to underestimate the impact of vision impairment, particularly when the better eye has no or little VA loss and the worse eye is moderately to severely visually impaired. These findings have considerable implications for the assessment of overall visual impairment as well as economic evaluations within eye health.
format article
author Robert P Finger
Eva Fenwick
Christoph W Hirneiss
Arthur Hsueh
Robyn H Guymer
Ecosse L Lamoureux
Jill E Keeffe
author_facet Robert P Finger
Eva Fenwick
Christoph W Hirneiss
Arthur Hsueh
Robyn H Guymer
Ecosse L Lamoureux
Jill E Keeffe
author_sort Robert P Finger
title Visual impairment as a function of visual acuity in both eyes and its impact on patient reported preferences.
title_short Visual impairment as a function of visual acuity in both eyes and its impact on patient reported preferences.
title_full Visual impairment as a function of visual acuity in both eyes and its impact on patient reported preferences.
title_fullStr Visual impairment as a function of visual acuity in both eyes and its impact on patient reported preferences.
title_full_unstemmed Visual impairment as a function of visual acuity in both eyes and its impact on patient reported preferences.
title_sort visual impairment as a function of visual acuity in both eyes and its impact on patient reported preferences.
publisher Public Library of Science (PLoS)
publishDate 2013
url https://doaj.org/article/49d23c1ae4b74edaac8bb10a5416d2f8
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