Oculomotor Dysfunction in Neurodegenerative Disorders
Summary
Oculomotor dysfunction represents a sensitive indicator of neurodegenerative pathology, reflecting the integrity of cortical, subcortical and brainstem networks that govern voluntary and reflexive eye movements. In disorders such as Parkinson’s disease, progressive supranuclear palsy and multiple system atrophy, characteristic abnormalities emerge across saccadic, smooth pursuit and fixation domains. Common findings include slowed saccadic initiation, reduced amplitude (hypometria), increased antisaccade error rates and disrupted smooth pursuit gain. Vergence deficits and pathological square wave jerks further compromise gaze stability. These impairments map onto dysfunction of the basal ganglia–brainstem circuitry, cerebellar contributions to predictive tracking and frontal cortical control of inhibitory processes. Clinically, detailed oculometric profiling can aid differential diagnosis, track disease progression and evaluate therapeutic interventions such as dopaminergic drugs or deep brain stimulation. Recent advances in portable imaging and analysis algorithms have broadened access to objective, non-invasive assessment, enhancing opportunities for early detection and longitudinal monitoring across diverse care settings.
Research from Nature Portfolio
No recent Nature Portfolio content available.
Oculomotor Dysfunction in Neurodegenerative Disorders publication trend
The graph below shows the total number of articles in oculomotor dysfunction in neurodegenerative disorders across all publications each year (not limited to Nature Index journals).
Technical terms
Saccade: rapid, conjugate eye movement that redirects the fovea onto new targets.
Antisaccade: voluntary eye movement in the opposite direction to a sudden peripheral stimulus, probing inhibitory control.
Smooth pursuit: continuous eye movement that maintains a moving target on the fovea.
Videooculography: non-invasive technique using cameras to record and quantify eye movements.
Vergence: coordinated rotation of the eyes in opposite directions (convergence or divergence) to maintain binocular focus on objects at varying distances.
References
- Effects of deep brain stimulation frequency on eye movements and cognitive control. npj Parkinson's Disease (2023).
- Advancements in eye movement measurement technologies for assessing neurodegenerative diseases. Frontiers in Digital Health (2024).
- Reduced maximal range of ocular movements and its response to acute levodopa challenge in Parkinson's disease. Frontiers in Aging Neuroscience (2024).
- Antisaccades in Parkinson’s Disease: A Meta-Analysis. Neuropsychology Review (2021).
- Alterations of Eye Movement Control in Neurodegenerative Movement Disorders. Journal of Ophthalmology (2014).
About these summaries
This Nature Research Intelligence Topic summary is created with the cited references and a large language model. We take care to ground generated text with facts, and have systems in place to gain human feedback on the overall quality of the process in line with our AI principles. We strive to create accurate and useful summaries for people unfamiliar with the research topic and that supports this goal. These pages are a beta release and will be updated as we learn how best to help people gain value from a research topic summary.
Turn complex research questions into confident strategic decisions
When you're under pressure to set direction, justify investment, or understand your competitive position, you need more than raw data — you need trusted insights you can act on.
Benchmark your performance against global peers using robust, methodologically sound analysis.
Combine quantitative metrics with qualitative expert insight to uncover strengths, gaps and emerging opportunities.
Gain tailored, decision-ready recommendations aligned to your strategic priorities.
Talk to us to learn more about our data dashboards and bespoke strategy reports.
Grow research skills, confidence and careers with training built for every stage of the research lifecycle.
Developed with Nature Portfolio journal Editors and internationally renowned experts. Discover three ways to learn:
Self-paced, online courses in convenient bite-sized units, covering key skills across scientific writing, publishing, grant writing, data analysis, and more.
Expert trainer-led workshops with hands-on exercises and real-time feedback across core research skills, delivered via interactive group sessions.
Editor-led workshops combining core principles in writing and publishing, personalised 1:1 feedback from Nature Portfolio Editors and hands-on exercises.
Explore course catalogues and workshop agendas, enquire about the options or request institutional pricing.