Self-Reported Visual Ability Versus Task Performance in Individuals With Ultra-Low Vision.
Self-Reported Visual Ability Versus Task Performance in Individuals With Ultra-Low Vision.
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DOI：
10.1167/tvst.12.10.14
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发表时间：
2023-10-03
影响因子：
3
通讯作者：
Dagnelie, Gislin
中科院分区：
文献类型：
--
作者：
Kartha, Arathy;Singh, Ravnit Kaur;Bradley, Chris;Dagnelie, Gislin
视觉功能问卷通常被用作患者报告的结果衡量标准，以评估视觉能力。另一方面，性能测量提供了视觉能力的直接测量。对于视力极低的人(ULV；视敏度(VA)和20/1600)，超低视力视觉功能问卷(ULV-VFQ)和Wilmer VRI-基于虚拟现实的表现测试-分别评估自我报告的和实际的日常生活能力。但是，ULV-VFQ的自我报告预测Wilmer VRI的实际任务表现有多好？我们从ULV-VFQ和Wilmer VRI对27名ULV患者实施了10个匹配项目的子集。我们使用Rasch分析对ULV-VFQ进行项目测量(任务难度)和人测量(视觉能力)，并使用潜变量信号检测理论对Wilmer VRI进行估计。然后，我们使用回归分析来比较自我报告和任务绩效对个人和项目测量的估计。项目和人的测量在两种工具之间存在适度的相关，R2=0.47(P=0.02)和R2=0.36(P=0.001)，说明自我报告对任务难度和绩效的预测并不完美。虽然自我报告对设备和人员的要求较低，但应测量实际任务绩效，以评估ULV的视觉能力。在招募ULV患者的临床试验中，视觉表现测量应该是首选的结果测量。虚拟现实可以用来标准化任务。
Visual functioning questionnaires are commonly used as patient-reported outcome measures to estimate visual ability. Performance measures, on the other hand, provide a direct measure of visual ability. For individuals with ultra-low vision (ULV; visual acuity (VA) <20/1600), the ultra-low vision visual functioning questionnaire (ULV-VFQ) and the Wilmer VRI—a virtual reality–based performance test—estimate self-reported and actual visual ability, respectively, for activities of daily living. But how well do self-reports from ULV-VFQ predict actual task performance in the Wilmer VRI? We administered a subset of 10 matching items from the ULV-VFQ and Wilmer VRI to 27 individuals with ULV. We estimated item measures (task difficulty) and person measures (visual ability) using Rasch analysis for ULV-VFQ and using latent variable signal detection theory for the Wilmer VRI. We then used regression analysis to compare person and item measure estimates from self-reports and task performance. Item and person measures were modestly correlated between the two instruments, with r2 = 0.47 (P = 0.02) and r2 = 0.36 (P = 0.001), demonstrating that self-reports are an imperfect predictor of task difficulty and performance. While self-reports impose a lower demand for equipment and personnel, actual task performance should be measured to assess visual ability in ULV. Visual performance measures should be the preferred outcome measure in clinical trials recruiting individuals with ULV. Virtual reality can be used to standardize tasks.
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影响因子：
4.1
作者：
Warrian, K. J.;Spaeth, G. L.;Steinmann, W. C.
通讯作者：
Steinmann, W. C.
影响因子：
13.7
作者：
Szlyk, JP;Seiple, W;Mahler, CL
通讯作者：
Mahler, CL
影响因子：
3.7
作者：
Bradley, Chris;Massof, Robert W.
通讯作者：
Massof, Robert W.
DOI：
10.1097/opx.0b013e3182686251
发表时间：
2012-09
期刊：
Optometry and vision science : official publication of the American Academy of Optometry
影响因子：
--
作者：
Geruschat DR;Bittner AK;Dagnelie G
通讯作者：
Dagnelie G
影响因子：
3
作者：
Adeyemo O;Jeter PE;Rozanski C;Arnold E;Dalvin LA;Swenor B;Dagnelie G;PLoVR Study Group
通讯作者：
PLoVR Study Group