AI Article Synopsis
- - Blurred near vision is a frequent issue for people with Parkinson's disease (PD), but there's not much research on how their eye movements work.
- - The study examined eye movements in 18 PD patients and 18 control subjects, focusing on how quickly and accurately they could focus their eyes in different directions.
- - Results showed that PD patients had slower and less accurate eye movements compared to controls, indicating that their eye movement control is disrupted.
Article Abstract
Background: Blurred near vision is a common non-motor symptom in patients with Parkinson's disease (PD), however detailed characterization of vergence eye movements (VEM) is lacking.
Methods: Convergence and divergence were examined in 18 patients with PD and 18 control subjects using infrared video-oculography. VEM metrics analyzed included latency, velocity and accuracy, in vertical and horizontal planes.
Results: The latency of convergence and divergence was significantly increased in PD subjects. Additionally, divergence was slow and hypometric, while other convergence metrics were similar to controls.
Conclusion: We provide evidence in favor of disrupted VEM in PD.
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| http://dx.doi.org/10.1016/j.parkreldis.2015.04.014 | DOI Listing |
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