Senelick R C
J Clin Neuroophthalmol. 1981 Dec;1(4):265-7.
The presence of primary position downbeat nystagmus indicates disease at the cervicomedullary junction where craniovertebral anomalies are commonly encountered. This paper reports a patient whose only symptom was disabling oscillopsia and downbeat nystagmus secondary to basilar impression and Arnold-Chiari malformation. He experienced total resolution of his symptoms following transoral removal of the odontoid process. In the past it was felt that ocular signs and symptoms did not improve with surgery for craniovertebral anomalies. In light of this report, the ocular symptoms of craniovertebral anomalies may be considered indications in themselves for surgical intervention.
原眼位下跳性眼球震颤提示颅颈交界处存在病变，此处常可见颅椎异常。本文报告一名患者，其唯一症状是由基底凹陷和Arnold-Chiari畸形继发的致残性视振荡和下跳性眼球震颤。经口切除齿状突后，他的症状完全缓解。过去认为，颅椎异常手术不能改善眼部体征和症状。鉴于本报告，颅椎异常的眼部症状本身可被视为手术干预的指征。
