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NCT00842231 · ClinicalTrials.gov registry record
Assessment of Visual Performance in Patients With Low Levels of Astigmatism
A clinical trial, sponsored by Alcon Research.
- Completed
- Registry status
- 40
- Enrollment target
NCT00842231: Completed study, sponsored by Alcon Research.
NCT00842231 is a clinical trial that has completed, run by Alcon Research. The registered enrollment target is 40 participants. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00842231 has completed, sponsored by Alcon Research.
- COMPLETED
- Registry status
- 40 participants
- Enrollment target
Study Summary
To assess visual performance in patients with low levels (0.5-0.75 Diopters) of corneal astigmatism.
Primary Outcome
Visual acuity differences between subjects tested with full correction and spherical equivalent (SE) correction at contrast levels of 9% and 25% (low contrast acuity) and 100% (high contrast acuity). LogMAR is the "logarithm of the minimum angle of resolution". A lower logMAR value indicates better VA. These measurements were performed under photopic conditions by means of 9%, 25%, and 100% contrast ETDRS (Early Treatment Diabetic Retinopathy Study) charts (Vector Vision).
Interventions
- OTHER Visual performance measures
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 40 participants |
| Start Date | 2009-01 |
What the finished NCT00842231 record still lists
NCT00842231 is an observational study that tracks outcomes without assigning an intervention. The registry caps enrollment at 40 participants, a relatively small participant target.
The record links to 0 conditions, and to 1 intervention - of which Visual performance measures is the first listed.
NCT00842231 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00842231 about?
NCT00842231 is a clinical study titled "Assessment of Visual Performance in Patients With Low Levels of Astigmatism". To assess visual performance in patients with low levels (0.5-0.75 Diopters) of corneal astigmatism.
What is the current status of trial NCT00842231?
This trial is currently completed. The enrollment target is 40 participants. The study started on 2009-01.
What interventions are being tested in trial NCT00842231?
The interventions under investigation include: Visual performance measures (OTHER).
Who is sponsoring clinical trial NCT00842231?
This trial is sponsored by Alcon Research, which has 275 total clinical trials registered on ClinicalTrials.gov.
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