A fundamental characteristic of peripheral vestibular nystagmus, in particular horizontal nystagmus, is that it is suppressed by visual fixation. This means that a patient with a vertigo attack of peripheral vestibular origin might have no obvious spontaneous nystagmus on clinical examination. Goggles that reduce or remove visual fixation allow the cliniican to observe nystagmus in this situation. Nystagmus goggles are essential for any clinician dealing with dizzy patients. Here, we discuss why this is so and how easy it is to acquire and use them.

中文翻译：

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眼球震颤护目镜：如何使用它们，你发现了什么以及它意味着什么

外周前庭眼球震颤，特别是水平眼球震颤的一个基本特征是它被视觉固定所抑制。这意味着外周前庭源性眩晕发作的患者在临床检查中可能没有明显的自发性眼球震颤。减少或消除视觉固定的护目镜允许临床医师在这种情况下观察眼球震颤。眼震护目镜对于任何处理头晕患者的临床医生来说都是必不可少的。在这里，我们讨论为什么会这样，以及获取和使用它们是多么容易。