Clinical trials: Ocular Biometry
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
Myopia
Study Comparing Eye Growth Over Time in Children Using Two Myopia Control Lenses
The goal of this clinical trial is to investigate the short-term changes in the eye structure while wearing two types of lenslet-based myopia control lenses over a period of 6 months in children aged 6 to 13 years with myopia.
- Trial name
- NCT07253064
- Testing
- MCL 1, MCL 2
- Where
- Singapore
- Volunteers
- 20 people
- Sponsor
- Essilor International
Cataract; Surgery; Phacoemulsification; Biometry; Intraocular Lens Power
Comparison of SRK-T With Kane Formula for Prediction of Refractive Outcome After Phacoemulsification
Cataract is a leading cause of blindness in the world. Cataract surgery is one of the most commonly performed ocular procedures.
- Trial name
- NCT05564455
- Testing
- Biometry with Kane formula, Biometry with SRK-T formula
- Where
- Pakistan
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Foundation University Islamabad
Cataract, Keratoconus
Clinical Study - ES 900 - 2020-2
The EYESTAR 900 with software version i9.5.1.0 includes new analysis functionality. Since its clinical performance cannot be assessed based solely on clinical literature as found in the Clinical Evaluation Report, further data…
- Trial name
- NCT04392349
- Testing
- Haag-Streit EYESTAR 900, Tomey CASIA 2, Oculus PENTACAM HR
- Where
- Switzerland
- Volunteers
- 29 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
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.
Cataract
1000 Eyes Lens Biometry Study: Artificial Intelligence for Intraocular Lens Power Calculation
The main purpose of the study is to develop an AI approach to improve intraocular lens power calculations.
- Trial name
- NCT05779319
- Testing
- non contact measurement with the IOL Master 700
- Where
- Austria
- Volunteers
- 1,000 people
- Sponsor
- Johannes Kepler University of Linz
Hyperopia, Refractive Error
Optical Defocus to Stimulate Eye Elongation in Hyperopia
Axial hyperopia results when the length of the eye is too short for the eye to properly focus distance objects on the retina while the focusing system is relaxed.
- Trial name
- ODSEEH (NCT00950924)
- Testing
- Simultaneous Vision Bifocal Soft Contact Lenses, Single Vision Soft Contact Lenses
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Aller, Thomas A., OD
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
Glaucoma, Cataract
IOP and Ocular Biometrics Changes After Phacoemulsification in Glaucoma Patients and Controls
Effect of phacoemulsification on intraocular pressure has been studied with variable results.Furthermore, effect of phacoemulsification on ocular biometrics including anterior chamber depth and angle opening distance has also…
- Trial name
- NCT04334473
- Testing
- phacoemulsification and Intraocular lens implantation, Ultrasound Biomicrosopy (UBM)
- Where
- Egypt
- Volunteers
- 37 people
- Sponsor
- Mai Nasser Abd Elmohsen
Refractive Errors, Myopia
Correlation Between Preoperative Refraction and Anterior Segment Parameters With ICL Vault
This prospective non-comparative interventional study aims to analyse the pre-operative factors affecting the range of optimal ICL vaulting.
- Conditions
- Refractive Errors, Myopia, Myopic Astigmatism
- Trial name
- NCT05670626
- Testing
- Refractive Surgery
- Where
- Egypt
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Kasr El Aini 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
Dry Eye Syndromes
Effect of Cequa Treatment on Accuracy of Pre-operative Biometry & Higher Order Aberrations in Dry Eye Patients Undergoing Cataract Surgery
The purpose of this study is to examine the effect of Cequa treatment on the accuracy of pre-operative biometry and on corneal higher-order aberrations (HOAs) in cataract patients who have signs of dry eye disease.
- Trial name
- NCT04342988
- Testing
- Cequa
- Where
- 3 sites in United States
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- Research Insight LLC
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
Cataract
Pseudophakic Eyes With Presbyopia-correcting IOLs: OCT Biometry and Pyramid Aberrometry
To correlate ocular morphology from anterior segment OCT and pyramid wavefront sensing in order to comprehensively analyze pseudophakic in vivo image quality of presbyopia-correcting IOLs in cataract patients.
- Trial name
- NCT07436247
- Testing
- Osiris-T Pyramid Wavefront Sensor - (CSO, Italy)
- Where
- 2 sites in Austria
- Volunteers
- 80 people
- Sponsor
- Prim. Prof. Dr. Oliver Findl, MBA
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
Refractive and Visual Outcomes With the ARGOS Biometer In Eyes With a History of Refractive Surgery: ARGOS Study
The study is to evaluate the visual and refractive outcomes in eyes with prior myopic refractive surgery undergoing cataract surgery for intraocular lens (IOL) power calculations.
- Trial name
- NCT07129980
- Testing
- ARGOS Biometer
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Vance Thompson Vision
Myopia
Effects of Projected Peripheral Defocus on Ocular Biometrics
Acucela Inc. intends to develop a medical device to significantly halt or reverse myopic progression, which is a significant public health concern across the world, especially in Asian demographics.
- Trial name
- NCT04388020
- Testing
- Tabletop prototype of eSpecs: Active projection of defocused image in the peripheral visual field, Tabletop prototype of eSpecs: No Active projection of defocused image in the peripheral visual field
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Kubota Vision Inc.
Cataract Senile
Comparison Between Two Ss-OCT Biometry
Since recently a second swept-source optical coherence tomography (ss-OCT) optical biometry device was launched (Anterion, Heidelberg Engineering).
- Trial name
- NCT04333056
- Testing
- Biometric measurement agreement
- Where
- Austria
- Volunteers
- 210 people
- Sponsor
- Vienna Institute for Research in Ocular Surgery
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