Monitoring Eye Movement in Patients with Parkinson's Disease: What Can It Tell Us?

Yue Ran Sun; Sinem B Beylergil; Palak Gupta; Fatema F Ghasia; Aasef G Shaikh

doi:10.2147/EB.S384763

Monitoring Eye Movement in Patients with Parkinson's Disease: What Can It Tell Us?

Eye Brain. 2023 Jul 24:15:101-112. doi: 10.2147/EB.S384763. eCollection 2023.

Authors

Yue Ran Sun¹, Sinem B Beylergil², Palak Gupta^{2

3}, Fatema F Ghasia⁴, Aasef G Shaikh^{1

2

3}

Affiliations

¹ Department of Neurology, University Hospitals, Case Western Reserve University, Cleveland, OH, USA.
² Neurology Service, Louis Stokes Cleveland VA Medical Center, Cleveland, OH, USA.
³ Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA.
⁴ Cole Eye Institute, Cleveland Clinic, Cleveland, OH, USA.

Abstract

Parkinson's disease (PD) affects approximately 10 million individuals worldwide. Visual impairments are a common feature of PD. Patients report difficulties with visual scanning, impaired depth perception and spatial navigation, and blurry and double vision. Examination of PD patients reveals abnormal fixational saccades, strabismus, impaired convergence, and abnormal visually-guided saccades. This review aims to describe objective features of abnormal eye movements in PD and to discuss the structures and pathways through which these abnormalities may manifest.

Keywords: Parkinson’s disease; eye movement; gaze holding; saccades; strabismus; vergence.

Publication types

Review