Agreement and Accuracy of Different Devices for Biometry Measurements in Patients With Cataract
Last updated on July 2021Recruitment
- Recruitment Status
- Recruiting
- Estimated Enrollment
- Same as current
Summary
- Conditions
- Cataract
- Cornea
- Surgery
- Type
- Interventional
- Phase
- Not Applicable
- Design
- Allocation: RandomizedIntervention Model: Single Group AssignmentMasking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)Masking Description: Which eye as well as the order of devices and observer will be randomized. Randomization information will be put in a sealed envelope on screening date and opened right before measurements start.Primary Purpose: Diagnostic
Participation Requirements
- Age
- Between 40 years and 95 years
- Gender
- Both males and females
Description
The rationale of this study is to compare repeatability, reproducibility and agreement of both, AS-OCT(s) and Pentacam. In our department three different AS-OCT devices and a HR Scheimpflug imaging device are currently in use for clinical routine to measure the cornea. Among refractive and anterior ...
The rationale of this study is to compare repeatability, reproducibility and agreement of both, AS-OCT(s) and Pentacam. In our department three different AS-OCT devices and a HR Scheimpflug imaging device are currently in use for clinical routine to measure the cornea. Among refractive and anterior segment surgeons, there is no preferred and accepted method for accurate measurements of the corneal curvature. The four diagnostic tools are based on different technical and physical imaging principles and to date only limited information on their comparability exist. One advantage of ASOCT represents faster imaging speed when compared to Scheimpflug imaging. Thus, imaging misalignment, segmentation errors and defocus aberration can most likely be avoided by AS-OCT. Chen et al demonstrated that HR Scheimpflug imaging measurements of CCT were systematically higher than the measurements provided by FD AS-OCT. Further, repeatability, reproducibility and agreement of AS-OCT and Scheimpflug imaging device will be assessed during follow-up.
Tracking Information
- NCT #
- NCT04323358
- Collaborators
- Not Provided
- Investigators
- Principal Investigator: Rupert Menapace, MD Medical University of Vienna