Visual Dysfunction in Mild Traumatic Brain Injury (MTBI): A Comparison Group Study
Public ClinicalTrials.gov record NCT00671450. 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
Visual Dysfunction in MTBI: A Comparison Group Study
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
In an on-going study of visual characteristics of personnel diagnosed with a mild traumatic brain injury (MTBI) related to their service in Iraq and Afghanistan we found a high rate of binocular vision problems (such as double/blurry vision, reading difficult, etc.). These individuals are also usually diagnosed with post traumatic stress disorder (PTSD). PTSD is known to cause some vision symptoms. We wish to conduct this study on individuals with PTSD (but not an MTBI) to see if they have symptoms similar to those in individuals who have MTBI. This will provide us with information useful in determining the specific cause of the visual symptoms in the MTBI population.
Study identification
- NCT ID
- NCT00671450
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 75 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 19 Years to 39 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Sep 30, 2008
- Primary completion
- Jun 30, 2009
- Completion
- Jul 31, 2009
- Last update posted
- Jan 27, 2013
2008 – 2009
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| VA Palo Alto Health Care System | Palo Alto | California | 94304-1290 | — |
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 NCT00671450, 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 Jan 27, 2013 · Synced Sep 6, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00671450 live on ClinicalTrials.gov.