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Eye movements and response to levodopa

Researchers are comparing eye movement measurements and studying how Parkinson's medicine affects them.

Learning by observing or collecting information · Study reference: ChiCTR2300070333

Plain-language introduction written with AI from the registry; not independently checked by a clinician. Read the original details below ↓

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Start (reported date)
2023-04-10

Planned dates can move. A study finishing does not tell us when a paper will be published.

No results summary has been confirmed in the registry records we imported. See connected papers below; we keep checking after recruitment ends.

Changes we have recorded
  • 2026-10-11 — recruiting

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Papers connected to this study

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Who can join?

Ages 18 to 80 · Ask the team who can join

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Read all the rules for taking part

Sex eligibility reported by registry: both

Inclusion criteria: 1. Patients diagnosed with Parkinson 's disease meet 2015-MDS Parkinson 's diagnostic criteria. 2. H / Y rating of 1-4. 3. Less than 10 years of onset with no significant neck stiffness. 4. MMSE score greater than or equal to 24 points, visual and auditory normal, can cooperate to complete the test. 5. No basic ophthalmic diseases, such as eye infection, refractive error, glaucoma, cataract and other diseases. Exclusion criteria: 1. Cerebral hemorrhage, cerebral infarction, poisoning, trauma can lead to clear cause of Parkinson ' s disease. 2. Patients with eye infection, glaucoma, cataract, previous trauma or skin defect. 3. Patients with atypical parkinsonism, such as progressive supranuclear palsy, multiple system atrophy, corticobasal degeneration, vascular parkinsonism, dementia with Lewy bodies, etc. 4. Patients with intracranial hypertension, epilepsy, pregnant women, elderly and infirm individuals who cannot cooperate to complete the experimental operation 5. Others who could not cooperate with the experiment
Full study name & original research details

Official study title

Ocular movement disorders in Parkinson’ s disease and the response to dopaminergic drugs

Original description

Intervention: Experimental group :Measuring range of eye motion;Experimental group :Levodopa challenge test;Health control :Measuring range of eye motion; Primary outcome: upwards distance;downwards distance;leftwards distance;rightwards distance;Movement disorder society-unified-parkinson disease rating scale;

Conditions reported: Parkinson's disease

Registry records for this study

Records are joined using registration identifiers. Titles alone do not establish that two studies are the same.

Study type
Observational
Interventions
Experimental group :Measuring range of eye motion;Experimental group :Levodopa challenge test;Health control :Measuring range of eye motion;
Phases
0
Sponsor
First Affiliated Hospital of Anhui Medical University
Start date reported by registry
2023-04-10 (reported)

Registry updated: Not reported · Status last verified by the registry submitter: Not reported

Registry records retrieved 2026-10-14 (UTC). Individual records may have older updates. Recruitment and eligibility must be confirmed with the study team.

Contact the research team

Public study contacts supplied to the registry. Ask whether recruitment is still open and what participation involves.

Xianwen Chen · +86 139 5693 9016 · chxwmail@aliyun.com

Study locations

Site status can differ from overall study status. “Status not reported” means local availability needs confirmation. Remote participation and travel arrangements must be checked with the team.

Facility not reported

China

Status not reported

The original descriptions and participation rules come from the registry. Participation is voluntary and does not guarantee benefit.