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

Research output: Contribution to journalArticle

Standard

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; Dafgård Kopp, Eva.

In: Acta Ophthalmologica, Vol. 96, No. 1, 2018, p. 77-80.

Research output: Contribution to journalArticle

Harvard

APA

CBE

MLA

Vancouver

Author

RIS

TY - JOUR

T1 - A comparison between patients with epiphora and cataract of the activity limitations they experience in daily life due to their visual disability

AU - Bohman, Elin

AU - Wyon, Maria

AU - Lundström, Mats

AU - Dafgård Kopp, Eva

PY - 2018

Y1 - 2018

N2 - 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.

AB - 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.

KW - Activity limitations

KW - Cataract surgery

KW - Catquest-9SF

KW - Epiphora

KW - Subjective visual function

KW - Visual disability

UR - http://www.scopus.com/inward/record.url?scp=85018255118&partnerID=8YFLogxK

U2 - 10.1111/aos.13447

DO - 10.1111/aos.13447

M3 - Article

VL - 96

SP - 77

EP - 80

JO - Acta Ophthalmologica

JF - Acta Ophthalmologica

SN - 1755-3768

IS - 1

ER -