Bohman Elin, Wyon Maria, Lundström Mats, Dafgård Kopp Eva
Department of Clinical Neuroscience, Division of Ophthalmology and Vision, Karolinska Institutet, St. Erik Eye Hospital, Stockholm, Sweden.
Department of Clinical Sciences, Ophthalmology, Faculty of Medicine, Lund University, Lund, Sweden.
Acta Ophthalmol. 2018 Feb;96(1):77-80. doi: 10.1111/aos.13447. Epub 2017 Apr 26.
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.
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.
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.
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.
本研究的目的是比较患有溢泪症和白内障的患者在日常生活中因视力残疾而经历的活动受限情况，并验证Catquest-9SF问卷在溢泪症患者中的应用。
在瑞典斯德哥尔摩圣埃里克眼科医院，72例连续遇到的确诊泪道阻塞并计划行泪囊鼻腔吻合术（DCR）或泪道插管术的成年患者完成了Catquest-9SF问卷，该问卷用于测量因视力残疾导致的日常生活活动受限情况。通过Rasch分析评估从这组患者获得的Catquest-9SF结果的心理测量学质量。进一步采用Rasch分析将有序原始数据转换为Rasch分数，以便与2013年3月在瑞典国家白内障登记处（NCR）登记的患者术前分数进行比较。
在调查溢泪症患者时，Catquest-9SF表现出良好的心理测量学质量，但关于面部识别的第4项存在不匹配情况。在Rasch量表上（-5.43 = 无活动受限至 +5.01 = 严重活动受限），溢泪症患者的平均分数为 -0.82，而计划进行第一眼和第二眼白内障手术的患者平均分数分别为 -0.17和 -0.76。等效性测试证实，溢泪症患者报告的视力残疾与等待第二眼白内障手术的患者报告的视力残疾无显著差异。
Catquest-9SF是测量溢泪症患者视力残疾的有效工具。溢泪症患者经历的视力残疾程度与等待第二眼白内障手术的患者相同。
