Journal article
Eye movements in parkinson's disease: Before and after pallidotomy
T Blekher, E Siemers, LA Abel, RD Yee
Investigative Ophthalmology and Visual Science | ASSOC RESEARCH VISION OPHTHALMOLOGY INC | Published : 2000
Abstract
PURPOSE. To evaluate the effects of unilateral, stereotactic, posteroventral pallidotomy on saccadic eye movements in patients with Parkinson disease (PD). METHODS. Eye movements of 31 patients with moderate to advanced PD were recorded with an infrared system 1 month before and 3 months after pallidotomy. Two kinds of saccade tasks were used: saccade tasks for eliciting visually guided saccades and saccade tasks for eliciting internally mediated saccades (memory-guided, predictive, and anti-saccades). Latency, accuracy, peak velocity, and other parameters of saccades were evaluated. RESULTS. Internally mediated saccades were more impaired in patients with advanced PD compared with those wit..
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