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Results for “Measurement of Refractive Error”

26 trials

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Showing 20 of 26 results

Not applicableStudy completedNCT03655743
What this trial is testing

PRO Measure for Refractive Surgery IRAS Project Number 246072

Who this might be right for
Refractive ErrorsSatisfactionCornea+1 more
Moorfields Eye Hospital NHS Foundation Trust 372
Not applicableStudy completedNCT03292614
What this trial is testing

Measurement of Refractive SE Following Implantation of LS313 MF30 IOL

Who this might be right for
Refractive Errors
Dietrich-Bonhoeffer-Klinikum 25
Not applicableLooking for participantsNCT05856786
What this trial is testing

To Study the Effects of Refractive Surgery on OCT Measurements in the Eye

Who this might be right for
Optical Coherence TomographyRefractive ErrorsMyopia
University of Nebraska 33
Not applicableLooking for participantsNCT07335146
What this trial is testing

Eye Imaging for the Study of Childhood Myopia

Who this might be right for
Hyperopia and Myopia
Essilor International 100
Not applicableStudy completedNCT06209476
What this trial is testing

Clinical Investigation on Assessing the Repeatability and Reproducibility of Central and Peripheral Refractive Error

Who this might be right for
Refractive Error
Johnson & Johnson Vision Care, Inc. 30
Not applicableLooking for participantsNCT06882408
What this trial is testing

The Objective of This Study is to Evaluate the Perfomance of a Photorefraction Device for Screening Ametropia in Children. Eligible Participants Will Undergo Multiple Refractive Error Measurements, Visual Acuity and Strabismus Assessments During a Single Evaluation Visit.

Who this might be right for
AmetropiaMyopia; Refractive ErrorMyopia; Astigmatism
Essilor International 315
Not applicableStudy completedNCT02627157
What this trial is testing

Measurements of Corneal Biomechanical Properties Using a Dynamic Scheimpflug Analyzer for Young Healthy Adults in South Korea

Who this might be right for
Myopia
Yonsei University 472
Not applicableStudy completedNCT01775007
What this trial is testing

A Pilot Study to Test the Safety and Feasibility of a Brillouin Ocular Analyzer

Who this might be right for
Measurement of the Elasticity of the Anterior Eye Segment
Massachusetts General Hospital 31
Not applicableStudy completedNCT04689503
What this trial is testing

Study on the Measurement of Retinal Blood Flow in Children

Who this might be right for
Myopia
Wenzhou Medical University 1,200
Not applicableStudy completedNCT06045325
What this trial is testing

Assessment of Measurement Variability Across Automated Biometry Devices

Who this might be right for
Myopia
Berkeley Eye Center 204
Not applicableUnknownNCT03832335
What this trial is testing

A New Measurement of Anseikonia Tolerance

Who this might be right for
AniseikoniaAnisometropia and Aniseikonia
Glostrup University Hospital, Copenhagen 31
Not applicableUnknownNCT02687022
What this trial is testing

Measurement Repeatability in Contemporary Aberrometry

Who this might be right for
Refractive Errors
Moorfields Eye Hospital NHS Foundation Trust 60
Not applicableStudy completedNCT06797856
What this trial is testing

Measurement of Refractive Error in Pseudophakic Eyes Using an Autorefractor and a Wavefront Aberrometer

Who this might be right for
Measurement of Refractive Error
Johnson & Johnson Surgical Vision, Inc. 46
Not applicableStudy completedNCT02235831
What this trial is testing

DAILIES® AquaComfort Plus® Multifocal (MF) - Comparative Assessment of Visual Performance

Who this might be right for
PresbyopiaRefractive Error
Alcon Research 24
Not applicableStudy completedNCT01587287
What this trial is testing

A Comprehensive Assessment of Anterior Corneal Power by Different Devices

Who this might be right for
Myopia
Wenzhou Medical University 35
Not applicableStudy completedNCT03162471
What this trial is testing

How Astigmatism Influences Corneal Biomechanics and Intraocular Pressure

Who this might be right for
Corneal AstigmatismIntraocular PressureCataract Senile
Medical University of Lodz 39
Not applicableStudy completedNCT05905237
What this trial is testing

Measurement of Antioxidant Activity on Postoperative Inflammation in Patients Undergoing Ophthalmic Surgery

Who this might be right for
CataractMyopia
Chang Gung Memorial Hospital 132
Not applicableEnded earlyNCT01884805
What this trial is testing

Feasibility of Measurement of Optical Aberrations in Hyperopia by Using an Adaptive Optics Visual Simulator (AOVIS-I)

Who this might be right for
Hyperopia
University Hospital, Toulouse 9
Not applicableUnknownNCT05458661
What this trial is testing

Feasibility Investigation of Biometry and Tomography Measurements in a Heterogeneous Patient Cohort

Who this might be right for
CataractLens OpacitiesArtificial Lens Implant+3 more
Carl Zeiss Meditec AG 100
Not applicableUnknownNCT03906279
What this trial is testing

Choroidal Thickness Change in Response to Physiological and Refractive Changes

Who this might be right for
Refractive ErrorsAccommodation Disorder
Wrocław University of Science and Technology 250
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