期刊
JOURNAL OF GLAUCOMA
卷 23, 期 1, 页码 23-32出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/IJG.0b013e31825c10dc
关键词
primary open-angle glaucoma; eye-movement behavior; saccades; magnocellular pathway
资金
- Fondation pour la Recherche Medicale
- Fondation Berthe Fouassier
- Fondation de France
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.
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