nystagmusglossary / NYSTAGMUS nystagmus (ni-stag-m[schwa]s). A rapid, involuntary jerking or twitching of the eyes, sometimes caused by ingesting drugs or alcohol. See HORIZONTAL-GAZE NYSTAGMUS TEST. 词条贡献者 译者崇载,国际名校知识产权法专业,擅长翻译各种与知识产权相关的法律文件。