一个半综合征较为少见,以特殊眼外肌麻痹表现为主的一种临床征候群。其特征为一眼固定于中线,另一眼仅能外展,在外展时伴有急动性水平眼震。我们在临床中曾观察到一例较为典型的一个半综合征,并经CT和MRI检查所证实,特报告如下: 患者,女性,48岁,于1990年12月6日入院。主因眩晕、视物模糊、复视,右侧肢 One and a half more rare syndrome, with special extraocular muscle paralysis performance of a clinical syndrome. It is characterized by a fixed in the center line, the other can only be abducted, abducted with anxiety level nystagmus. We have observed in clinical cases of a more typical one and a half syndrome, and confirmed by CT and MRI examination, the special report is as follows: The patient, female, 48 years old, was admitted on December 6, 1990. Main due to dizziness, blurred vision, diplopia, right limb