Introduction: The literature supports the importance of adequate lighting for people with visual impairments, but little is known regarding ambient color temperature at home, and the evaluation process is not standardized. Thus, this study aimed to test a method for evaluating the preferred ambient color temperature, established with a near-vision assessment in clinic, and by using standardized tools to evaluate the effects at home for people with central visual field loss. Methods: An exploratory quasi-experimental study was conducted with three interventions and six observation times. A convenience sample of eight women and two men with central visual field loss, aged 64–91 years with visual acuity between 6/21 (20/69) and 6/48 (20/158), was recruited. Two certified low vision therapists realized evaluations with Minnesota Low-Vision Reading Test, International Reading Speed Texts, a Visual Comfort Scale, a Digital Light Meter LX1330B, and Home Environment Lighting Assessment. The LuxIQ and various illuminated magnifiers were used for clinical interventions. Home lighting interventions were individualized and aimed to apply participants’ preferred color temperature in a selected room. Results: The use of the LuxIQ and illuminated magnifiers showed positive effects in near-vision for all participants by increasing reading speed and visual comfort. Home lighting interventions in participants’ kitchen (n = 4), living room (n = 4), or office (n = 2) also had beneficial effects on their visual comfort and ability to perform activities of daily living. The choice of preferred color temperature was transferable from near-vision to ambient lighting for all participants but one and varied widely. Discussion: Innovative preliminary data support the importance of ambient color temperature for people with visual impairments and suggest an efficient standardized evaluation method. Further research is needed to obtain statistically significant empirical evidence in this field. Implications for practitioners: It could be beneficial for low vision therapists to evaluate the individual ambient color temperature preferences of people with visual impairments by using standardized tools.

中文翻译：

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“首选”色温是否可以从近视照明转移到家庭环境照明？对有中央视野丧失的人的探索性研究

简介：文献支持视力障碍者充足照明的重要性，但对家庭环境色温知之甚少，评估过程不规范。因此，本研究旨在测试一种评估首选环境色温的方法，该方法是通过临床近视评估建立的，并通过使用标准化工具来评估在家中对中央视野丧失的人的影响。方法：进行了一项探索性准实验研究，其中包含 3 项干预措施和 6 次观察时间。招募了 8 名女性和 2 名中央视野丧失的男性，年龄 64-91 岁，视力在 6/21 (20/69) 和 6/48 (20/158) 之间的便利样本。两名经过认证的低视力治疗师通过明尼苏达州低视力阅读测试、国际阅读速度文本、视觉舒适量表、数字光度计 LX1330B 和家庭环境照明评估实现了评估。LuxIQ 和各种照明放大镜用于临床干预。家庭照明干预是个性化的，旨在在选定的房间中应用参与者的首选色温。结果：使用 LuxIQ 和照明放大镜，通过提高阅读速度和视觉舒适度，对所有参与者的近视产生积极影响。参与者厨房（n = 4）、客厅（n = 4）或办公室（n = 2）的家庭照明干预也对他们的视觉舒适度和进行日常生活活动的能力产生了有益的影响。对于所有参与者来说，首选色温的选择可以从近视力转移到环境照明，但只有一个并且变化很大。讨论：创新的初步数据支持环境色温对视力障碍人士的重要性，并提出了一种有效的标准化评估方法。需要进一步研究以获得该领域具有统计意义的经验证据。对从业者的影响：对于低视力治疗师而言，使用标准化工具评估视力障碍人士的个人环境色温偏好可能是有益的。创新的初步数据支持环境色温对视力障碍人士的重要性，并提出了一种有效的标准化评估方法。需要进一步研究以获得该领域具有统计意义的经验证据。对从业者的影响：对于低视力治疗师而言，使用标准化工具评估视力障碍人士的个人环境色温偏好可能是有益的。创新的初步数据支持环境色温对视力障碍人士的重要性，并提出了一种有效的标准化评估方法。需要进一步研究以获得该领域具有统计意义的经验证据。对从业者的影响：对于低视力治疗师而言，使用标准化工具评估视力障碍人士的个人环境色温偏好可能是有益的。