Clinical trials: Ocular Biometry
Meibomian Gland Dysfunction
Stability of Biometry in Meibomian Gland Dysfunction
Accurate biometry is an essential and indispensable tool in preoperative cataract surgery setting to yield optimal postoperative refractive outcome.
- Trial name
- NCT04322656
- Testing
- Lipiflow treatment
- Where
- Austria
- Volunteers
- 31 people
- Sponsor
- Vienna Institute for Research in Ocular Surgery
Diabetic Retinopathy Patients After Vitrectomy
Comparison of the Visual Quality of Traditional Ultrasound Biometrics and Lenstar on the Cataract After Pars Plana Vitrectomy
Comparison of the visual quality of traditional ultrasound biometrics and lenstar on the cataract patients with diabetic retinopathy after vitrectomy in the 3 months later.To evaluate the clinical value of lenstar in…
- Trial name
- PPV (NCT03485586)
- Testing
- Traditional ultrasound biometrics, Lenstar
- Where
- China
- Volunteers
- 60 people
- Sponsor
- Bojie Hu
Myopia
Binocular Peripheral Myopic Defocus Using a Clinical Prototype Device
Kubota Vision Inc. has developed a spectacle-like prototype device which is designed to be used as a light-based therapy to reduce myopia progression.
- Trial name
- NCT05425108
- Testing
- Binocular CP1
- Where
- United States
- Volunteers
- 45 people
- Sponsor
- Kubota Vision Inc.
Astigmatism
Rotational Stability of Two Soft Toric Contact Lens Designs
This study compared the rotational behavior of two commercially available soft toric contact lenses with different stabilization designs and explored whether ocular biometric and refractive characteristics were associated with…
- Trial name
- NCT07795671
- Testing
- Acuvue Oasys for Astigmatism, Air Optix for Astigmatism
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people
- Sponsor
- Bozok University
Dry Eye, Cataract
Effect of Dry Eye Treatment on Corneal Astigmatism Measurements
This prospective single-center study evaluates the effect of dry eye disease and short-term ocular surface treatment on the agreement and repeatability of corneal astigmatism measurements in patients with age-related cataract.
- Trial name
- NCT07657858
- Testing
- Sodium Hyaluronate Eye Drops
- Where
- China
- Volunteers
- 400 people
- Sponsor
- Jin Yang
Cataract, Cornea
Agreement and Accuracy of Different Devices for Biometry Measurements in Patients With Cataract
The rationale of this study is to compare repeatability, reproducibility and agreement of three different AS-OCT devices and Pentacam.
- Conditions
- Cataract, Cornea, Surgery
- Trial name
- Comparison (NCT04323358)
- Testing
- Biometry, Keratometry
- Where
- Austria
- Volunteers
- 50 people
- Sponsor
- Medical University of Vienna
Cataract, Pseudophakia
Evaluation Study for a Non-Contact Biometer
The purpose of this study is to determine whether a new non-contact biometer, is as accurate as the the available gold-standard.
- Conditions
- Cataract, Pseudophakia, Myopia, Hyperopia
- Trial name
- NCT00494390
- Where
- Switzerland
- Volunteers
- 95 people, healthy volunteers welcome
- Sponsor
- Insel Gruppe AG, University Hospital Bern
Glaucoma, Glaucoma, Open-Angle
Prevalence of Glaucoma and Normative Data of Ocular Biometry in Elderly Population in Bangkok
The BANMOP eye study is an ophthalmic subproject of the Bangkoknoi Model Project (BANMOP), a community-based initiative integrating electronic health databases with population surveys to sup-port context-specific health promotion…
- Conditions
- Glaucoma, Glaucoma, Open-Angle, Glaucoma, Suspect, Glaucoma, Angle-Closure
- Trial name
- BANMOP (NCT07763288)
- Where
- Thailand
- Volunteers
- 1,470 people, healthy volunteers welcome
- Sponsor
- Siriraj Hospital
Optical Biometry of the Human Eye, General Analysis of the Anterior Chamber of the Human Eye
Clinical Trial ES 900 - 2016
The primary objective of this clinical trial is to assess the clinical performance of the investigational device. To that end, for each measure and the in-vivo repeatability will be quantified, as well as the mean measurement…
- Trial name
- NCT03382288
- Testing
- EYESTAR 900
- Where
- Switzerland
- Volunteers
- 116 people, healthy volunteers welcome
- Sponsor
- Haag-Streit AG
Pseudoaphakia
Time Study for Biometry Measurements With the Lenstar and IntraOcularLens (IOL) Master 500
The objectives of this study are to determine the time needed to complete a full set of measurements (Total Ophthalmic Exam, Subject Data Entry and Acquisition of the Measurement) by each test device, the Lenstar 900 Version i4…
- Trial name
- NCT01550939
- Testing
- Ophthalmic Biometer
- Where
- United States
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- Haag Streit USA
Cataract
Effect of Artificial Tears on Biometry
The purpose of this study is to determine if measurements for cataract surgery are improved with use of additional lubrication with artificial tears.
- Trial name
- NCT04230720
- Testing
- Systane Complete
- Where
- United States
- Sponsor
- Weill Medical College of Cornell University
Cataract, Lens Opacities
Feasibility Investigation of Biometry and Tomography Measurements in a Heterogeneous Patient Cohort
The planned clinical investigation will be conducted to acquire raw data for the development of the algorithm. The data acquisition is intended to obtain first impressions of the potential performance of the changed hardware and…
- Conditions
- Cataract, Lens Opacities, Artificial Lens Implant, Corneal Astigmatism
- Trial name
- BioBase (NCT05458661)
- Testing
- Clinical Prototype BioBase (SN 07 and SN 08)
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Carl Zeiss Meditec AG
Retinopathy of Prematurity
Refractive Error and Biometry in Retinopathy of Prematurity
The investigators compared long-term refractive and biometric outcomes in children with retinopathy of prematurity who received two different anti-vascular endothelial growth factor agents.
- Trial name
- NCT03334513
- Testing
- Bevacizumab, Ranibizumab
- Volunteers
- 35 people
- Sponsor
- San Ni Chen
Dry Eye
A Study to Evaluate the Effect of Miebo™ on Preoperative Biometry/Keratometry and Postoperative Refractive Accuracy
A Phase 4, Multicenter, Open-Label Study to Evaluate the Effect of Miebo™ on Preoperative Biometry/ Keratometry and Postoperative Refractive Accuracy
- Trial name
- NCT06346340
- Testing
- Miebo
- Where
- 12 sites in United States
- Volunteers
- 97 people
- Sponsor
- Bausch & Lomb Incorporated
Optical Biometry of the Human Eye, General Analysis of the Anterior Chamber of the Human Eye
Clinical Trial ES 900 - 2019
The primary objective of this clinical trial is to assess the clinical performance of the investigational device. To that end, the Limits of Agreement with respect to comparator devices are analyzed.
- Trial name
- NCT04112472
- Testing
- EYESTAR 900
- Where
- Switzerland
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Haag-Streit AG
Congenital Cataract, Microphthalmos
Biometric Characteristics of the Eye With Microcornea/Microphthalmia and Congenital Cataract Before And After Cataract Extraction
Early cataract surgery in microcornea/microphthalmia eyes is essential to prevent amblyopia and improve visual outcomes, including stereopsis.
- Conditions
- Congenital Cataract, Microphthalmos, Microcornea
- Trial name
- NCT04759560
- Where
- Egypt
- Volunteers
- 133 people
- Sponsor
- Alexandria University
Cataract
IOL Power Calculation Using Dual Schiempflug Analyzer
This study evaluates the various ocular parameters which are necessary for ocular biometry and the calculated IOL powers using both dual Schiempflug analyzer and optical low-coherence refelctometry.
- Trial name
- NCT02362334
- Where
- South Korea
- Volunteers
- 140 people
- Sponsor
- Chuncheon Sacred Heart Hospital
Vision Disorders
Bridging Animal and Human Models of Exercise-induced Visual Rehabilitation
This study will determine whether blood biomarker changes predict sight-saving benefits of exercise.
- Trial name
- NCT02911805
- Testing
- Aerobic exercise, Balance exercise
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Cataract
AI-Driven IOL Prediction Using SS-OCT Biometry
This prospective, multicenter, non-interventional observational study aims to evaluate the agreement between a novel swept-source optical coherence tomography (SS-OCT) biometer and the IOLMaster 700 for ocular biometric…
- Trial name
- NCT07733154
- Testing
- IOLMaster 700, Novel SS-OCT Biometer
- Where
- 3 sites in Australia, China and 1 more
- Volunteers
- 2,500 people
- Sponsor
- The Hong Kong Polytechnic University
Anterior Segment of Eye, Axial Length
Agreement of Two OCT Biometers: A Pilot Study
The purpose of this study is to compare the measurements obtained with two different biometers, UNITY Dx and Anterion. In eye care, a biometer is a device that uses laser technology to take highly precise measurements of the…
- Conditions
- Anterior Segment of Eye, Axial Length, Biometrics Measurement
- Trial name
- NCT07782619
- Testing
- UNITY DX, ANTERION
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- Alcon Research