Impaired Saccadic Eye Movement in Primary Open-angle Glaucoma
Research output: Contribution to journal › Journal article › Research › peer-review
PURPOSE:: Our study aimed at investigating the extent to which saccadic eye movements are disrupted in patients with primary open-angle glaucoma (POAG). This approach followed upon the discovery of differences in the eye-movement behavior of POAG patients during the exploration of complex visual scenes. METHODS:: The eye movements of 8 POAG patients and 4 healthy age-matched controls were recorded. Four of the patients had documented visual field scotoma, and 4 had no identifiable scotoma on visual field testing. The eye movements were monitored as the observers watched static and kinetic targets. The gain, latency, and velocity-peak latency of the saccades recorded were then analyzed. RESULTS:: In POAG patients, with abnormal visual fields, watching a static target, the saccades were delayed and their accuracy was reduced, compared with those of normal observers. In POAG patients, with normal and abnormal visual fields, watching a kinetic target, a task involving precise motion analysis, the latency and accuracy of the saccades were impaired, compared with those of normal observers. CONCLUSIONS:: Our findings suggest that POAG alters saccade programming and execution particularly in the case of moving targets.
Original language | English |
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Journal | Journal of Glaucoma |
ISSN | 1057-0829 |
DOIs | |
Publication status | Published - 2013 |
ID: 48527124