Evolution of a Novel Optical Coherence Tomography Based Index in Diagnosing Keratoconus
A Study on Evaluating the Consistency of CASIA2, Pentacam, and Corvis ST Measurement Parameters and the Diagnostic Efficacy of Early Keratoconus
A Study on Evaluating the Consistency of CASIA2, Pentacam, and Corvis ST Measurement Parameters and the Diagnostic Efficacy of Early Keratoconus
Sponsor study identifier
observational
200
1 country
1
Study Start
July 1, 2023
Actual (reported)Primary Completion
February 1, 2024
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
April 1, 2024
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Comparison of corneal topography based on oct OCT principle (CASIA2) with Pentacam and Scheimpflug-based biomechanical devices (Corvis ST) in screening and diagnosing keratoconus; and evaluation of the consistency with Pentacam in measuring corneal parameters (such as curvature and thickness).
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
April 1, 2024
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
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Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
July 1, 2023
Actual (reported)October 30, 2023
Actual (reported)November 30, 2023
Actual (reported)February 1, 2024
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
April 1, 2024
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
screening and diagnosis ability
Evaluate the sensitivity and specificity of parameters measured by CASIA2, Pentacam in diagnosing keratoconus using Receiver operating characteristic curves (ROC), and compare the Ectasia Screening Similarity(ESS)and D-value diagnostic efficacy using Area under the ROC curve (AUROC). Use the Delong test to compare the accuracy of various parameters in diagnosing early keratoconus.
one year
Measurement consistency
one year
morphological and biomechanical parameters of corneal were obtain by CASIA2, Pentacam and Corvis ST
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Patients premedicated for refractive surgery
Tiajin Eye Hospital
Tianjin, Tianjin Municipality, China
Yan Wang, Prof
Tiajin Eye Hospita
First Submitted
October 30, 2023
First Posted
November 30, 2023
Study Start
July 1, 2023
Actual (reported)Primary Completion
February 1, 2024
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Contact the study team to confirm eligibility.
Study Completion
April 1, 2024
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Last Updated
November 30, 2023
Record last verified: 2023-11
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Source: ClinicalTrials.gov.
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