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A comparison between patients with epiphora and cataract of the activity limitations they experience in daily life due to their visual disability

Bohman, Elin; Wyon, Maria; Lundström, Mats LU and Dafgård Kopp, Eva (2017) In Acta Ophthalmologica
Abstract

Purpose: The objective of this study was to compare patients with epiphora and cataract in terms of the activity limitations they experience in daily life due to their visual disability and to validate the use of the Catquest-9SF questionnaire for epiphora patients. Methods: Seventy-two consecutively encountered adult patients with confirmed lacrimal obstruction and listed for dacryocystorhinostomy (DCR) or lacrimal intubation at the St. Erik Eye Hospital, Stockholm, Sweden, completed the Catquest-9SF questionnaire, which measures activity limitations in daily life due to visual disability. The psychometric qualities of the Catquest-9SF results obtained from this group of patients were evaluated by Rasch analysis. Rasch analysis was... (More)

Purpose: The objective of this study was to compare patients with epiphora and cataract in terms of the activity limitations they experience in daily life due to their visual disability and to validate the use of the Catquest-9SF questionnaire for epiphora patients. Methods: Seventy-two consecutively encountered adult patients with confirmed lacrimal obstruction and listed for dacryocystorhinostomy (DCR) or lacrimal intubation at the St. Erik Eye Hospital, Stockholm, Sweden, completed the Catquest-9SF questionnaire, which measures activity limitations in daily life due to visual disability. The psychometric qualities of the Catquest-9SF results obtained from this group of patients were evaluated by Rasch analysis. Rasch analysis was further employed to convert the ordinal raw data to a Rasch score for comparison with the preoperative scores of patients registered in the Swedish National Cataract Register (NCR) during March 2013. Results: The Catquest-9SF exhibited good psychometric qualities when investigating epiphora patients, with the exception of a misfit for Item 4, the item regarding facial recognition. On the Rasch scale (-5.43 = no activity limitations to +5.01 = severe activity limitations), the mean score for epiphora patients was -0.82 while for patients listed for 1st eye and 2nd eye cataract surgery it was -0.17 and -0.76, respectively. An equivalence test confirmed that the reported visual disability of epiphora patients was not significantly different from visual disability reported by patients waiting for 2nd eye cataract surgery. Conclusion: The Catquest-9SF is a valid measure of visual disability in patients with epiphora. Epiphora patients experience visual disability to the same degree as patients awaiting 2nd eye cataract surgery.

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author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
Activity limitations, Cataract surgery, Catquest-9SF, Epiphora, Subjective visual function, Visual disability
in
Acta Ophthalmologica
publisher
Wiley-Blackwell
external identifiers
  • scopus:85018255118
ISSN
1755-375X
DOI
10.1111/aos.13447
language
English
LU publication?
yes
id
ab336c79-44d6-4d8f-9038-1156951ff260
date added to LUP
2017-05-19 10:20:58
date last changed
2018-01-07 12:04:27
@article{ab336c79-44d6-4d8f-9038-1156951ff260,
  abstract     = {<p>Purpose: The objective of this study was to compare patients with epiphora and cataract in terms of the activity limitations they experience in daily life due to their visual disability and to validate the use of the Catquest-9SF questionnaire for epiphora patients. Methods: Seventy-two consecutively encountered adult patients with confirmed lacrimal obstruction and listed for dacryocystorhinostomy (DCR) or lacrimal intubation at the St. Erik Eye Hospital, Stockholm, Sweden, completed the Catquest-9SF questionnaire, which measures activity limitations in daily life due to visual disability. The psychometric qualities of the Catquest-9SF results obtained from this group of patients were evaluated by Rasch analysis. Rasch analysis was further employed to convert the ordinal raw data to a Rasch score for comparison with the preoperative scores of patients registered in the Swedish National Cataract Register (NCR) during March 2013. Results: The Catquest-9SF exhibited good psychometric qualities when investigating epiphora patients, with the exception of a misfit for Item 4, the item regarding facial recognition. On the Rasch scale (-5.43 = no activity limitations to +5.01 = severe activity limitations), the mean score for epiphora patients was -0.82 while for patients listed for 1st eye and 2nd eye cataract surgery it was -0.17 and -0.76, respectively. An equivalence test confirmed that the reported visual disability of epiphora patients was not significantly different from visual disability reported by patients waiting for 2nd eye cataract surgery. Conclusion: The Catquest-9SF is a valid measure of visual disability in patients with epiphora. Epiphora patients experience visual disability to the same degree as patients awaiting 2nd eye cataract surgery.</p>},
  author       = {Bohman, Elin and Wyon, Maria and Lundström, Mats and Dafgård Kopp, Eva},
  issn         = {1755-375X},
  keyword      = {Activity limitations,Cataract surgery,Catquest-9SF,Epiphora,Subjective visual function,Visual disability},
  language     = {eng},
  publisher    = {Wiley-Blackwell},
  series       = {Acta Ophthalmologica},
  title        = {A comparison between patients with epiphora and cataract of the activity limitations they experience in daily life due to their visual disability},
  url          = {http://dx.doi.org/10.1111/aos.13447},
  year         = {2017},
}