Agreement and Accuracy of Different Devices for Biometry Measurements in Patients With Cataract
NCT04323358 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 50
Last updated 2020-03-26
Summary
The rationale of this study is to compare repeatability, reproducibility and agreement of three different AS-OCT devices and Pentacam.
The investigational devices are approved biometry and keratometry devices to perform biometric/keratometric measurements preoperatively before cataract surgery. The measurements are used to calculate the needed IOL power.
Measurements with all four devices will be performed 3 times consecutively by two trained observer. The order of the observer, the order of devices as well as the eye (left/right) is randomized.
Examinations will be implemented in accordance with the approved investigational plan on subjects and includes: repeated biometry/keratometry with four different devices
Conditions
- Cataract
- Cornea
- Surgery
Interventions
- DIAGNOSTIC_TEST
-
Biometry
Patients will be asked to place the chin in position and open their eyes wide. In between measurements, the patient will be arranged so his eyes are in one horizontal line and each time before measurement the patient will be asked to blink several times.
- DIAGNOSTIC_TEST
-
Keratometry
Patients will be asked to place the chin in position and open their eyes wide. In between measurements, the patient will be arranged so his eyes are in one horizontal line and each time before measurement the patient will be asked to blink several times.
Sponsors & Collaborators
-
Medical University of Vienna
lead OTHER
Principal Investigators
-
Rupert Menapace, MD · Medical University of Vienna
Study Design
- Allocation
- RANDOMIZED
- Purpose
- DIAGNOSTIC
- Masking
- QUADRUPLE
- Model
- SINGLE_GROUP
Eligibility
- Min Age
- 40 Years
- Max Age
- 95 Years
- Sex
- ALL
- Healthy Volunteers
- No
Timeline & Regulatory
- Start
- 2020-03-05
- Primary Completion
- 2020-07-30
- Completion
- 2020-07-30
Countries
- Austria
Study Locations
More Related Trials
-
Assessment of Measurement Variability Across Automated Biometry Devices
NCT06045325 ·Status: COMPLETED
-
Comparative Study of the Optical Biometer for Measurements of the Eye
NCT01729962 ·Status: COMPLETED
-
Subjective and Objective Refraction in Pseudophakic Patients
NCT04319497 ·Status: COMPLETED ·Phase: NA
-
Influence of Artificial Tears on Keratometry and Biometry Measurements With Different Devices
NCT06358456 ·Status: COMPLETED ·Phase: NA
-
Limitations of Using a Sheimpflug Image-Based Device for Measuring Anterior Chamber Depth in Pseudophakic Eyes
NCT00712231 ·Status: COMPLETED
-
Observation of Rotation of an Intraocular Lens
NCT02208232 ·Status: COMPLETED
-
The Effect of Refractive Errors on Central Corneal Thickness by Using Pentacam and IOL Master
NCT06484894 ·Status: NOT_YET_RECRUITING
-
Comparative Study in Measuring Anterior Chamber Depth
NCT04816266 ·Status: UNKNOWN
-
A Comparison of Two Devices for Taking Measurements of the Eye to Assist in Lens Selection for Cataract Surgery
NCT03396003 ·Status: COMPLETED ·Phase: NA
-
Predicting the Lens Capsular Bag Size Using Pre-operative Biometry
NCT05578339 ·Status: COMPLETED ·Phase: NA
-
Time Study for Biometry Measurements With the Lenstar and IntraOcularLens (IOL) Master 500
NCT01550939 ·Status: COMPLETED ·Phase: PHASE4
-
To Compare Postoperative Horizontal Position Stability of the CT LUCIA 611P and the CT ASPHINA 409MP
NCT04036149 ·Status: COMPLETED ·Phase: NA
-
The Purpose is to Evaluate Visual Acuity for Distance, Intermediate and Near and Additionally Contrast Sensitivity at 25% and 10% of Illumination After Implantation of Trifocal IOL, Extended Range of Vision IOL, Bifocal IOL With Low Addition and Monofocal IOL
NCT07008768 ·Status: COMPLETED ·Phase: NA
-
Intraocular Lens Power Calculation for Combined Phaco-vitrectomy Procedures
NCT03856346 ·Status: UNKNOWN
-
Assessment of Visual Function and Optics in Intraocular Lenses
NCT01654159 ·Status: ENROLLING_BY_INVITATION ·Phase: NA
-
Evaluation of Physiological Responses at the Anterior Surface of Two (Hydrophobic Acrylic) Intraocular Lens Models
NCT04230629 ·Status: UNKNOWN ·Phase: NA
-
IOL Power Calculation Using Dual Schiempflug Analyzer
NCT02362334 ·Status: UNKNOWN
-
1000 Eyes Lens Biometry Study: Artificial Intelligence for Intraocular Lens Power Calculation
NCT05779319 ·Status: RECRUITING
-
Accuracy of the Pentacam and IOL Master to Calculate the Effective Corneal Power After Corneal Refractive Surgery
NCT00466908 ·Status: WITHDRAWN
-
Evaluation of the Tecnis™ Multifocal and Crystalens™ Accommodating Intraocular Lenses
NCT01061281 ·Status: COMPLETED ·Phase: PHASE4
-
Aberrometry and Straylight Measurements as an Indication for Cataract Surgery
NCT06257914 ·Status: ENROLLING_BY_INVITATION
-
Scheimpflug Versus Placido-disc System in Evaluation of Corneal Higher-Order Aberrations
NCT06278220 ·Status: NOT_YET_RECRUITING
-
Axial Length Variability
NCT04580550 ·Status: COMPLETED ·Phase: NA
-
Intraocular Lens Power Calculation Using Pre- and Intra-operative Measurements
NCT02513134 ·Status: COMPLETED
-
Contribution of Posterior Corneal Astigmatism to Total Corneal Astigmatism in a Sample of Egyptian Population
NCT04393740 ·Status: UNKNOWN