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 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.