A Comparison of Two Devices for Measuring the Central Thickness of the Cornea Before and After Surgery (CECOT)
NCT02522416 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 50
Last updated 2017-03-20
Summary
Corneal topography allows the measure of the radii of curvature and of the thickness of the cornea. It is essential for diagnosis in ophthalmology and allows to highlight corneal irregularities such as a keratoconus, or too thin corneas which are a contra-indication for laser refractive surgery.
Several types of corneal topographers are commercially available. Some as the Orbscan(r), operate by analyzing the image of the patterns of a Placido disk associated with a light slit, allowing the collection of thousands of points of the anterior and posterior surface of the cornea. More recent systems such as the Pentacam(r) are based on automatic rotary cameras which capture images of the whole anterior segment of the eye. The aim of this study is to compare two topographs, the Pentacam(r) and the Orbscan(r) and, more specifically, the central corneal pachymetry measurements measured pre- and postoperatively.
Conditions
- Disorders, Refractive
Interventions
- DEVICE
-
Central corneal thickness measurement
Sponsors & Collaborators
-
Fondation Ophtalmologique Adolphe de Rothschild
lead NETWORK
Eligibility
- Min Age
- 18 Years
- Sex
- ALL
- Healthy Volunteers
- No
Timeline & Regulatory
- Start
- 2015-11-30
- Primary Completion
- 2017-01-30
- Completion
- 2017-03-15
Countries
- France
Study Locations
More Related Trials
-
Agreement and Accuracy of Different Devices Corneal Measurements
NCT04383366 ·Status: COMPLETED
-
COMPARISON OF CORNEAL MEASUREMENTS IN NORMAL AND KERATOCONUS EYES USING ANTERIOR SEGMENT OPTICAL COHERENCE TOMOGRAPHY AND PENTACAM HR TOPOGRAPHER
NCT04462991 ·Status: COMPLETED
-
Study of Clinical Performance of Corneal Topography Measurement Using an Optical Biometer
NCT01861925 ·Status: COMPLETED
-
Detection of Keratoconus Progression Using Machine Learning
NCT06873399 ·Status: ACTIVE_NOT_RECRUITING
-
Evolution of a Novel Optical Coherence Tomography Based Index in Diagnosing Keratoconus
NCT06152484 ·Status: RECRUITING
-
Preoperative Corneal Measurements Estimate the Corrected Distance Visual Acuity After Corneal Cross-linking
NCT06522789 ·Status: COMPLETED ·Phase: NA
-
Corneal Topographer Fluorescein Patterns
NCT00584285 ·Status: COMPLETED
-
Measurements of Corneal Biomechanical Properties Using a Dynamic Scheimpflug Analyzer for Normal Adults in South Korea
NCT02627170 ·Status: COMPLETED
-
Validation of Innovative Scheimpflug Topography Derived RGP Contact Lens Designs In Optometry Network
NCT06312163 ·Status: COMPLETED
-
A Study of a Novel Scheimpflug Device in Diagnosing Keratoconus
NCT06119321 ·Status: ACTIVE_NOT_RECRUITING
-
Intraocular Lens Power Calculation After Laser Refractive Surgery Based on Optical Coherence Tomography
NCT00532051 ·Status: RECRUITING
-
Compare Anterior Chamber Biometry in Healthy and Post-LASIK Patients
NCT00838734 ·Status: UNKNOWN
-
Optical Coherence Pachymetry to Evaluate Central Corneal Ablation Depth in Myopic Femtosecond Laser in Situ Keratomileusis
NCT02893644 ·Status: COMPLETED
-
Assessment of Corneal Stiffness in Keratoconus After Crosslinking by Corvis ST and OCT.
NCT05161052 ·Status: UNKNOWN ·Phase: NA
-
Corneal Epithelial and Stromal Thickness Distribution in Keratoconus
NCT02023619 ·Status: COMPLETED
-
Orthokeratology Lens Decentration with Two Designs of Corneal Refractive Therapy™ Lenses: a One-year Prospective Study
NCT06726499 ·Status: COMPLETED ·Phase: NA
-
Zeiss® IOLMaster 700 Corneal Topography Module Comparison With Schwind's Sirius Corneal Topography®
NCT05414773 ·Status: UNKNOWN ·Phase: NA
-
Analysis of Topographic Corneal Parameters
NCT06220578 ·Status: COMPLETED
-
Computer-aided Diagnosis of Ocular Diseases Based on Corneal Biomechanics
NCT04475900 ·Status: COMPLETED
-
Comparability of Keratometry of VERION Image Guided System With Established Measuring Devices
NCT02377154 ·Status: COMPLETED ·Phase: NA
-
Retrospective Observational Study of Posterior Keratometry Measured
NCT04422080 ·Status: COMPLETED
-
Icare Tonometry Effects on Keratometry Readings, Topography Readings, and Corneal Staining
NCT03275142 ·Status: COMPLETED ·Phase: NA
-
IOLMASTER 700 Central Topography Workflow Study.
NCT04875247 ·Status: COMPLETED
-
Tomographic Analysis of Anterior, Posterior, Total Corneal Refractive Power Changes After Laser-assisted Keratotomy
NCT03097302 ·Status: COMPLETED
-
Cross Linking Corneal Biomechanical Evaluation of CATS Tonometer Prism
NCT04180111 ·Status: UNKNOWN