方法：选择NAION患者23例27眼，分别以检眼镜法和Nidek MP-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。

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 and eccentric fixation can be detected definitely by the direct ophthalmoscopy in the NAION eyes, while microperimetery can manifest fixation location and stability in details.