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首页> 外文期刊>Applied psychophysiology and biofeedback >Preliminary Findings on the Optimization of Visual Performance in Patients with Age-Related Macular Degeneration Using Biofeedback Training
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Preliminary Findings on the Optimization of Visual Performance in Patients with Age-Related Macular Degeneration Using Biofeedback Training

机译：使用生物融合训练优化年龄相关黄斑变性患者视觉性能的初步调查结果

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Biofeedback training has been used to improve fixation stability in subjects with central vision loss, but the psychophysiological mechanisms underlying the functional improvements resulted was not reported. The aim of this study was to investigate the effects of microperimetric biofeedback training on different visual functions and self-reported quality of vision in subjects with age-related macular degeneration. This case-control study included six subjects (72.0 +/- 6.1years of age) diagnosed with age-related macular degeneration (wet or dry) with low vision (best corrected visual acuity ranging from 0.5 to 0.1 in the study eye) and five healthy volunteers (64.2 +/- 3.7years of age). Ophthalmological and functional examinations were obtained from all subjects twice with an approximately 3-month interval. Subjects with central vision loss performed 12 sessions (10min each) of biofeedback training between the two examinations. Functional evaluation included: microperimetry, spatial luminance contrast sensitivities, color vision thresholds, visual acuity, and reading speed. Visual performance during daily activities was also assessed using a standardized questionnaire. The ratio (2nd/1st examination) of the spatial luminance contrast sensitivity at lower spatial frequencies were much higher for the training subjects compared with the controls. In addition, self-reported quality of vision improved after the training. The significant improvement of the visual function such as spatial luminance contrast sensitivity may explain the better self-reported quality of vision. Possible structural and physiological mechanisms underlying this neuromodulation are discussed.
机译：生物融合训练已被用于改善中央视力损失的受试者的固定稳定性，但没有报告潜在的功能改进的心理生理机制。本研究的目的是探讨微型生物反馈训练对不同视力变性的受试者不同视觉功能和自我报告的视觉质量的影响。这种案例对照研究包括患有六个受试者（72.0 +/- 6.1年龄），诊断患有具有低视力的年龄相关的黄斑（湿或干燥）（在研究眼中的0.5至0.1的最佳矫正视力）和五个健康志愿者（64.2 +/- 3.7年龄）。从所有受试者中获得两次的眼科和功能检查，约3个月间隔。中央视觉损失的受试者在两次考试之间进行了12个会话（每次10分钟）生物融合培训。功能评估包括：微型仪，空间亮度对比度敏感性，颜色视觉阈值，视力和读取速度。每日活动期间的视觉性能也使用标准化问卷进行评估。与对照相比，训练受试者的空间亮度对比度灵敏度的比对比度敏感度的比率（第2/第2检查）高得多。此外，培训后，自我报告的愿景质量得到改善。视觉函数的显着改善如空间亮度对比度敏感度可以解释更好的自我报告的视觉质量。讨论了这种神经调节的可能结构和生理机制。

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