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首页> 外文期刊>Journal of Optometry >Effect of chromatic filters on visual performance in individuals with mild traumatic brain injury (mTBI): A pilot study
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Effect of chromatic filters on visual performance in individuals with mild traumatic brain injury (mTBI): A pilot study

机译：彩色滤光片对轻度脑外伤（mTBI）个体视觉性能的影响：一项初步研究

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Purpose: Spectral filters have been used clinically in patients with mild traumatic brain injury (mTBI). However, they have not been formally assessed using objective techniques in this population. Thus, the aim of the present pilot study was to determine the effect of spectral filters on reading performance and visuo-cortical responsivity in adults with mTBI. Methods: 12 adults with mTBI/concussion were tested. All reported photosensitivity and reading problems. They were compared to 12 visually-normal, asymptomatic adults. There were several test conditions: three luminance-matched control filters (gray neutral density, blue, and red), the patient-selected 'precision tint lens' that provided the most comfort and clarity of text using the Intuitive Colorimeter System, and baseline without any filters. The Visagraph was used to assess reading eye movements and reading speed objectively with each filter. In addition, both the amplitude and latency of the visual-evoked potential (VEP) were assessed with the same filters. Results: There were few significant group differences in either the reading-related parameters or VEP latency for any of the test filter conditions. Subjective improvements were noted in most with mTBI (11/12). Conclusions: The majority of patients with mTBI chose a tinted filter that resulted in increased visual comfort. While significant findings based on the objective testing were found for some conditions, the subjective results suggest that precision tints should be considered as an adjunctive treatment in patients with mTBI and photosensitivity.
机译：目的：光谱过滤器已在临床上用于轻度脑外伤（mTBI）的患者。但是，尚未对该人群使用客观技术对其进行正式评估。因此，本实验研究的目的是确定频谱过滤器对mTBI成人的阅读性能和皮层反应性的影响。方法：对12名患有mTBI /脑震荡的成人进行了测试。所有报告的光敏性和阅读问题。将他们与12名视力正常，无症状的成年人进行了比较。有几种测试条件：三个亮度匹配的控制滤镜（灰色中性密度，蓝色和红色），患者选择的“精确色镜”，使用直觉色度计系统可提供最舒适和清晰的文本，而基线无需任何过滤器。 Visagraph被用来客观地评估每个滤镜的眼球运动和阅读速度。此外，使用相同的滤波器评估了视觉诱发电位（VEP）的幅度和潜伏期。结果：在任何测试过滤条件下，与阅读相关的参数或VEP潜伏期均几乎没有明显的组差异。大部分使用mTBI的人都发现了主观的改善（11/12）。结论：大多数mTBI患者选择有色滤镜以增加视觉舒适度。虽然在某些情况下发现了基于客观测试的重要发现，但主观结果表明，对于mTBI和光敏性患者，应考虑使用精确的色调作为辅助治疗。

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