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A Prospective Evaluation of Contrast Sensitivity and Disability Glare in Refractive Surgery, a Sub-Study of: Initial Evaluation of Excimer Laser Keratorefractive Surgery in U.S. Army Personnel (WU # 2335-99)
NCT00413868 · View on ClinicalTrials.gov ↗
Study Summary
The purpose of this study is to conduct a prospective assessment of small target contrast sensitivity and disability glare in refractive surgery. Study subjects will undergo the treatment of their choice (PRK or LASIK) and will be evaluated before and after treatment. Evaluations will include best corrected visual acuity, uncorrected visual acuity, psychometric questionnaire, pupil size, biomicroscopic examination, manifest refraction, wavefront measurements, low contrast acuity, and contrast sensitivity at normal and at low luminance with and without disability glare.
Conditions Studied
Interventions
- PROCEDURE LASIK
- PROCEDURE PRK
- BEHAVIORAL Small target contrast sensitivity and disability glare
Study Locations (1)
District of Columbia
- Walter Reed Army Medical Center, Center For Refractive Surgery — Washington D.C.
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 50 participants |
| Phase | NA |
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Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT00413868
The ClinicalTrials.gov registry entry for NCT00413868 describes a study currently listed as completed. It is categorized as NA, which is the standard way researchers label where a study sits along the investigational pathway from early safety work through later efficacy and post-marketing evaluation. The registered enrollment target is 50 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is Walter Reed Army Medical Center, which has 5 total studies on file at ClinicalTrials.gov, and sponsors are the parties responsible for study design, oversight, and regulatory filings.
The record links to 1 condition, with Myopia appearing as the primary indexed condition, and to 3 interventions — of which LASIK is the first listed. Interventions can include drugs, devices, procedures, behavioral programs, or observational arms, and each is tracked as a separate registry field so that downstream queries can filter accurately. When a trial lists multiple interventions, it usually reflects a multi-arm design or a comparison protocol rather than a single treatment being tested in isolation. The brief summary published in the registry is the clearest source of protocol intent and should be read before drawing conclusions from any sidebar tags.
Geographic footprint matters for practical reasons: NCT00413868 reports 1 study location spanning 1 distinct geographic area — top geographies include District of Columbia. A larger site network tends to correlate with broader recruitment capacity, but it does not imply anything about study quality, and site-level enrollment status can diverge from the overall registry status shown above. Every data point on this page comes from the public ClinicalTrials.gov dataset and is reproduced here for reference only; it is not a medical recommendation, an endorsement of the sponsor, or an invitation to enroll. Verify current status, eligibility criteria, and contact details directly at ClinicalTrials.gov, and discuss any participation decision with your own healthcare provider.
Frequently Asked Questions
What is clinical trial NCT00413868 about?
NCT00413868 is a clinical study titled "A Prospective Evaluation of Contrast Sensitivity and Disability Glare in Refractive Surgery, a Sub-Study of: Initial Evaluation of Excimer Laser Keratorefractive Surgery in U.S. Army Personnel (WU # 2335-99)". The purpose of this study is to conduct a prospective assessment of small target contrast sensitivity and disability glare in refractive surgery. Study subjects will undergo the treatment of their choice (PRK or LASIK) and will be evaluated before and after treatment. Evaluations will include best c...
What is the current status of trial NCT00413868?
This trial is currently completed. It is a NA study. The enrollment target is 50 participants.
What conditions does trial NCT00413868 study?
This clinical trial studies the following conditions: Myopia. These conditions were identified from the trial registry and reflect the primary focus areas of the research.
What interventions are being tested in trial NCT00413868?
The interventions under investigation include: LASIK (PROCEDURE), PRK (PROCEDURE), Small target contrast sensitivity and disability glare (BEHAVIORAL). Each intervention is being evaluated for safety and efficacy as part of this clinical study.
Who is sponsoring clinical trial NCT00413868?
This trial is sponsored by Walter Reed Army Medical Center, which has 5 total clinical trials registered on ClinicalTrials.gov. The sponsor is responsible for the study's design, funding, and regulatory compliance.
Where is trial NCT00413868 being conducted?
This trial has 1 study location across District of Columbia. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
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