Impact of low luminance conditions on quality of life for the visually impaired: development of the Low Luminance Questionnaire Japanese version
Impact of low luminance conditions on quality of life for the visually impaired: development of the Low Luminance Questionnaire Japanese version
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DOI：
10.1007/s10384-021-00838-4
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发表时间：
2021-05-15
影响因子：
2.4
通讯作者：
Kamei, Motohiro
中科院分区：
文献类型：
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作者：
Fujita, Kyoko;Suzukamo, Yoshimi;Kamei, Motohiro
目的本研究旨在编制低亮度问卷（LLQ-J）的日文版，并评价其信度和效度。研究设计横断面研究。方法采用标准化方法研制LLQ-J。本研究共纳入101例患者，其中年龄相关性黄斑变性55例，青光眼25例，退行性增殖性糖尿病视网膜病变15例，视网膜色素变性6例。患者完成了LLQ-J和日语版本的视觉功能问卷-25（VFQ-25）。使用LLQ-J数据，计算下限和上限效应。为了检查内部一致性，一些患者在2-4周后第二次完成LLQ-J，并分析数据的Cronbach α和类内相关系数（ICC）。测量最佳矫正视力（BCVA）和低亮度视力（LLVA），并计算低亮度缺陷（LLD）。标准效度也进行了测试。结果在LLQ-J数据中不存在天花板或地板效应。Cronbach’s α为0.88，所有分量表的ICC均高于0.70。LLQ-J和VFQ-25之间观察到中度至高度相关性（p < 0.01），证实了同时有效性。“一般昏暗照明”和“周边视觉”与较好眼的LLVA显著相关（p < 0.05）。“活动性”、“一般昏暗照明”和“周边视觉”与LLD显著相关（p < 0.05）。“情绪困扰”与较差眼的最佳矫正视力显著相关（p < 0.05）。没有子量表与较好眼的BCVA相关。结论LLQ-J是一种有效、可靠的低照度条件下生活质量评估问卷。
Purpose This study aimed to develop a Japanese version of the Low Luminance Questionnaire (LLQ-J) and to evaluate its reliability and validity. Study design Cross-sectional study. Methods LLQ-J was developed by standardized methods. A total of 101 patients comprising 55 with age-related macular degeneration, 25 with glaucoma, 15 with regressed proliferative diabetic retinopathy, and 6 with retinitis pigmentosa were included in this study. The patients completed the LLQ-J and Japanese version of the visual function Questionnaire-25 (VFQ-25). Using the LLQ-J data, floor and ceiling effects were computed. To examine internal consistency, some patients completed the LLQ-J a second time 2-4 weeks later and the data were analyzed for Cronbach's alpha and intra-class correlation coefficients (ICCs). Best-corrected visual acuity (BCVA) and low luminance visual acuity (LLVA) were measured, and low-luminance deficit (LLD) was calculated. Criterion validity was also tested. Results No ceiling or floor effects were present in the LLQ-J data. Cronbach's alfa was 0.88, and ICCs were higher than 0.70 for all subscales. Moderate to high correlation was observed between LLQ-J and VFQ-25 (p < 0.01), confirming concurrent validity. "General dim lighting" and "Peripheral vision" were significantly associated with LLVA in the better eye (p < 0.05). "Mobility", "General dim lighting" and "Peripheral vision" were significantly associated with LLD (p < 0.05). "Emotional distress" was significantly associated with BCVA in the worse eye (p < 0.05). No subscales were associated with BCVA of the better eye. Conclusions The LLQ-J is a valid and reliable questionnaire for assessing QOL under low luminance conditions.