Study on Visual Function Impairments in Dry Age-related Macular Degeneration
Public ClinicalTrials.gov record NCT01822873. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Evaluation of Visual Function Impairments in Patients With Early Dry Age-related Macular Degeneration
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The study hypothesis is that patients with dry age-related macular degeneration experience visual function impairments such as defects in dark adaptation, glare intolerance, poor light transition and reading in low lighting conditions. Studies have shown that patients in the early phases of AMD with normal visual acuity commonly reported difficulty with these visual functions but there have been no systematic studies evaluating these deficits in this population. This prospective, exploratory study will include up to 130 patients with dry AMD and 60 controls. These patients will undergo the following non-invasive visual function testing: * microperimetry with eye tracking * low luminance visual acuity * specialized color vision (cone-specific) * contrast testing and night vision testing. High-resolution spectral domain optical coherence tomography (SDOCT) images will be taken of the central retina using the Spectralis OCT unit. The values of visual function tested will be correlated with the findings on SDOCT (volume/amount of drusen present in early AMD). There are no known risks to the subjects beyond what is normal for standard examinations of the eye, visual function testing and standard ocular photographic procedures.
Study identification
- NCT ID
- NCT01822873
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 128 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 50 Years and older
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 28, 2013
- Primary completion
- Jun 30, 2018
- Completion
- Jun 30, 2018
- Last update posted
- Apr 16, 2019
2013 – 2018
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Duke Eye Center | Durham | North Carolina | 27710 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01822873, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Apr 16, 2019 · Synced Sep 24, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT01822873 live on ClinicalTrials.gov.