Does the Optic Disc Grading Done Visually by Your Doctor Agree With Optic Nerve Testing Which is Done by Machines?
Public ClinicalTrials.gov record NCT00430287. 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
Correlation of DDLS Grading to OCT, HRT, and HVF
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The purpose of this study is to determine how well the DDLS (Disc Damage Likelihood Scale) (which is a method used by the eye doctor to evaluate how healthy the optic nerve is) measures up to the standard glaucoma tests: OCT (Optical Coherence Tomography), the HRT (Heidelberg Retinal Tomography) and the HVF (Humphrey Visual Field).
Study identification
- NCT ID
- NCT00430287
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 101 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 45 Years to 85 Years
- 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, 2007
- Primary completion
- Sep 30, 2008
- Completion
- Sep 30, 2008
- Last update posted
- Nov 9, 2016
2007 – 2008
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Wills Eye Glaucoma Service | Philadelphia | Pennsylvania | 19107 | — |
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 NCT00430287, 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 Nov 9, 2016 · Synced Sep 6, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00430287 live on ClinicalTrials.gov.