At a glance
ClinicalIndex Comparison RecordN/ACompleted· 698 enrolled
Drug / intervention
Analysis of anterior and posterior corneal surfacesother
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.
Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.
Astigmatic Vector Analysis of Posterior Corneal Surface - a Comparison Among Healthy, Forme Fruste and Overt Keratoconus Corneas
In Brief
An observational study evaluating Analysis of anterior and posterior corneal surfaces for Keratoconus. Completed, enrolled 698 participants across 1 site.
Detailed Summary
The main purpose of this study is to determine new diagnostic criteria for an eye disease called keratoconus.
Study Details
Study Typeobservational
Allocation--
Masking--
Primary Purpose--
ConditionsKeratoconus
CountriesBrazil
Collaborators--
Timeline
N/ACompletedFinished
20162017201820192020202120222023202420252026
Enrollment StartMay 2015
Primary CompletionAug 2015
Study CompletionSep 2015
First PostedMar 2016
TodayJul 2026
First PostedMar 4, 2016
Enrollment StartMay 1, 2015
Primary CompletionAug 1, 2015
Study CompletionSep 1, 2015
TodayJul 2, 2026
Enrollment to primary: 3 monthsPosted 10.3 years ago
Interventions
Analysis of anterior and posterior corneal surfacesother
Corneal data obtained from a Scheimpflug-based topographer were converted to astigmatic vectors in accordance to the method proposed by Thibos