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Relationship Between the Impairment of Cognitive Function and Choroidal

Relationship Between the Impairment of Cognitive Function and Choroidal Thickness in Patients With Alzheimer's Disease

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR1800014839
Enrollment
Unknown
Registered
2018-02-08
Start date
2018-03-01
Completion date
Unknown
Last updated
2018-02-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Alzheimer's Disease

Interventions

control group:No

Sponsors

Bejing Geriatric Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
60 Years to 95 Years

Inclusion criteria

Inclusion criteria: AD patients: 1. 60 years and older; 2. AD diagnosis; 3. MMSE scores: illiterate education level = 24 points, primary school degree or above = 26 points; 4. Hamilton Depression Scale (HAMD) <17 (17 versions); 5. Hachinski ischemia score = 4 points; 6. CT / MRI test to exclude other types of dementia; 7. best corrected visual acuity = 0.6; 8. Informed consent from the patient or the patient's legally authorized representative (LAR). Health Control Participants: 1. 60 years and older; 2. Age matched to AD subject; 3. detailed mental tests, MMSE = 28 points; 4. best corrected visual acuity = 0.6; 5. Informed consent provided by the participants.

Exclusion criteria

Exclusion criteria: AD patients: 1. Known additional neurological disease; 2. suffering from glaucoma, high myopia (refraction greater than 6D), uveitis, retinal optic neuropathy and intraocular surgery within six months and post laser photocoagulation and other diseases affecting the optic nerve; 3. refractive media turbidity such as cataract nuclear grade IV, affecting OCT imaging and choroidal thickness examination; 4. diabetes, hypertension, coronary heart disease; 5. suffering from degenerative central nervous system degeneration may cause optic nerve degeneration (such as Parkinson's disease, multiple sclerosis); 6. long-term smoker; 7. subjects failed to complete the EDI SD-OCT examiner. Health Control Participants: 1. Neurological degenerative diseases (such as Parkinson's, Alzheimer's or Huntington's) 2. suffering from glaucoma, high myopia (refraction greater than 6D), uveitis, retinal optic neuropathy and intraocular surgery within six months and post laser photocoagulation and other diseases affecting the optic nerve; 3. refractive media turbidity such as cataract nuclear grade IV, affecting OCT imaging and choroidal thickness examination; 4. diabetes, hypertension, coronary heart disease; 5. suffering from degenerative central nervous system degeneration may cause optic nerve degeneration (such as Parkinson's disease, multiple sclerosis); 6. long-term smoker.

Design outcomes

Primary

MeasureTime frame
Choroidal Thickness;Head imaging features;MMSE?ADAs-Cognitive;

Secondary

MeasureTime frame
beta-site amyloid precursor protein cleaving enzyme 1;APOE Gene;Neuropsychiatric Inventory;Hamilton depression scale;

Countries

China

Contacts

Public ContactMo Li

Center for Cognitive Disorders, Beijing Geriatric Hospital

limo333@163.com+86 15210267816

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026