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首页> 外文期刊>Documenta Ophthalmologica: Advances in Ophthalmology >Objective and quantitative assessment of visual acuity and contrast sensitivity based on steady-state motion visual evoked potentials using concentric-ring paradigm
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Objective and quantitative assessment of visual acuity and contrast sensitivity based on steady-state motion visual evoked potentials using concentric-ring paradigm

机译：基于稳态运动视觉诱发电位的视力和对比度灵敏度的客观和定量评估使用Concentric-Ring范式

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Purpose The traditional assessment of visual acuity and contrast sensitivity depends more on subjective judgments. Steady-state motion visual evoked potentials (SSMVEPs) can provide an objective and quantitative method to evaluate visual functions such as visual acuity and contrast sensitivity. Here, we explored the possibility of objective SSMVEP visual acuity and contrast sensitivity testing, and compared its performance with that of psychophysical methods. Methods In this study, we designed a specific concentric ring with oscillating expansion and contraction SSMVEP paradigm to assess visual acuity and contrast sensitivity. By changing the parameters of the paradigm, the SSMVEP paradigm with different contrasts and spatial frequencies corresponding to different visual acuity and contrast sensitivity was designed. Moreover, we proposed a threshold determination criterion to define the corresponding objective SSMVEP visual acuity and contrast sensitivity. Results We tested visual acuity and contrast sensitivity of sixteen healthy adults utilizing this paradigm with an electroencephalography system. Our data suggested that there was no significant difference between objective visual acuity and contrast sensitivity measurements based on the SSMVEPs and subjective psychophysical ones. Conclusion Our study proved that SSMVEPs can be an objective and quantitative method to measure visual acuity and contrast sensitivity.
机译：目的，对视力和对比度敏感度的传统评估更多地取决于主观判断。稳态运动视觉诱发电位（SSMVEPS）可以提供一种客观和定量的方法来评估视力和对比度灵敏度等视觉功能。在这里，我们探讨了客观的SSMVEP视力和对比灵敏度测试的可能性，并将其性能与心理物理学方法进行了比较。方法在本研究中，我们设计了一种具有振荡扩展和收缩SSMVEP范例的特定同心环，以评估视力和对比度灵敏度。通过改变范式的参数，设计了具有不同对比度和与不同视力和对比灵敏度对应的不同对比度和空间频率的SSMVEP范例。此外，我们提出了一个阈值确定标准来定义相应的目标SSMVEP视力和对比度灵敏度。结果我们利用脑电图系统使用该范例测试了16个健康成年人的视力和对比度敏感性。我们的数据表明，基于SSMVEPS和主观心理物理学的目标视力与对比度敏感度测量没有显着差异。结论我们的研究证明，SSMVEP可以是测量视力和对比度敏感性的客观和定量的方法。

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