中文摘要：

目的：分析非动脉炎性前部缺血性视神经病变（NAION）眼的微视野固视性质。方法：选择NAION患者23例27眼,分别以检眼镜法和NidekMP-1微视野仪检测其固视性质,并对检测结果进行比较。结果：以检眼镜法检测,18眼表现为中心固视,9眼表现为中心外固视;以微视野法检测,18眼表现为稳定的中心固视,9眼表现为中心外固视,其中相对不稳定固视6眼,不稳定固视3眼。中心固视眼视力明显好于中心外固视眼（P〈0.05）。结论：检眼镜法检测NAION患者的固视性质时可以明确区分中心固视和中心外固视,微视野法则可以进一步对固视的稳定性加以分析。

英文摘要：

AIM ： To investigate the fixation features in non-anterior ischemic optic neuropathy （ NAION ） eyes with microperimetery. METHODS： Twenty-three patients with 27 NAION eyes were enrolled in this study. The fixation features were measured by Nidek MP- 1 microperimeter and direct ophthalmoscope, and the results were analyzed. RESULTS： There were 18 eyes manifesting central fixation, 9 eyes with eccentric fixation by the direct ophthalmoscopy. There were 18 eyes manifesting predominantly central and stable fixation, 6 eyes with predominantly eccentric and relative unstable fixation, and 3 eyes with predominantly eccentric and unstable fixation. Best- corrected visual acuity （BCVA） of the central fixation eyes was better than the eccentric fixation ones （P〈0.05）. CONCLUSION： The difference between central andeccentric fixation can be detected definitely by the direct ophthalmoscopy in the NAION eyes, while microperimetery can manifest fixation location and stability in details.