Clinical trials: Error, Refractive
Astigmatism
Laser Correction of Astigmatism Using Vector Analysis
To determine the effectiveness of correcting astigmatism by laser refractive surgery by a vectorial astigmatism outcome analysis that uses 3 fundamental vectors : target induced astigmatism vector ( TIA) , surgically induced…
- Trial name
- NCT04913883
- Volunteers
- 50 people
- Sponsor
- Assiut University
Myopia
Myopia Control Effect of DIMS Spectacle Lenses in Czech Children and Young Adults
The aim of this clinical study is to compare the efficacy of DIMS technology spectacle lenses with conventional single vision spectacle lenses at slowing the progression of myopia in the category of children and young adults…
- Trial name
- NCT05943912
- Testing
- Single Vision Spectacle Lens, Defocus Incorporated Multiple Segments (DIMS) Spectacle Lens
- Where
- Czechia
- Volunteers
- 80 people
- Sponsor
- Czech Technical University in Prague
Myopia; Refractive Error
Measuring Changes In Choroidal Thickness Induced By Prototype Soft Contact Lenses Worn For 1 Hour
The objective of the study is to evaluate the short-term change in choroidal thickness induced by 3 prototype soft contact lenses for people with myopia.
- Trial name
- ARCTIC (NCT07155551)
- Testing
- Lens A, Lens B, Lens C
- Where
- Canada
- Volunteers
- 20 people
- Sponsor
- Myoptechs, Inc
Myopia, Small-incision Lenticule Extraction (SMILE) Surgery
Potential Risk Factors and Predictive Model Construction of OBL During SMILE
To explore the prediction of OBL by deep learning model in SMILE surgery
- Trial name
- NCT06577012
- Testing
- Small incision lenticule extraction
- Where
- China
- Volunteers
- 4,678 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital of Nanchang University
Myopia
Comparison of Femto LDV Z8 Corneal Lenticule Extraction for Advanced Refractive Correction (CLEAR) and Visumax Small Incision Lenticule Extraction (SMILE)
This observational study aims to compare two laser corrective procedures for treating myopia and myopic astigmatism: a novel refractive technique, the CLEAR procedure, and the established SMILE procedure.
- Trial name
- NCT06774651
- Testing
- Procedure: Corneal lenticule extraction for advanced refractive correction (CLEAR), Procedure: Small Incision Lenticule Extraction (SMILE)
- Where
- Singapore
- Volunteers
- 65 people, healthy volunteers welcome
- Sponsor
- Singapore Eye Research Institute
Cataract, Lens Opacities
Clinical Investigation of the Multifocal IOL POD F GF in Cataracteous Eyes
To evaluate effectiveness and safety of the POD F GF Intraocular Lens (IOL) when implanted to replace the natural lens following cataract removal
- Conditions
- Cataract, Lens Opacities, Presbyopia
- Trial name
- NCT04699266
- Testing
- Assigned Intervention (POD F GF)
- Where
- Japan
- Volunteers
- 23 people
- Sponsor
- Beaver-Visitec International, Inc.
Correction of Refraction Error, Attenuation of Bright Light
Contact Lenses With New UV-blocker Manufactured With Different Techniques
This study is a randomized, 4-visit, double-masked, 2x3 bilateral crossover, dispensing trial. The study lenses will be worn as daily wear (DW) for a period of two weeks each with one of the study lenses being worn twice.
- Trial name
- NCT03475875
- Testing
- senofilcon A TEST Lens, senofilcon A CONTROL Lens
- Where
- 5 sites in United States
- Volunteers
- 92 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Presbyopia
Clinical Validation Study of Comfilcon A Multifocal Toric Contact Lenses
This is a study to evaluate the clinical performance and subjective acceptance of an investigational contact lens (test), compared to a marketed lens (control) in an in-office setting.
- Trial name
- NCT03417557
- Testing
- Comfilcon A lens (test), Omafilcon B lens (control)
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- CooperVision, Inc.
Refractive Errors
Clinical Investigation of a Femtosecond Laser for Corneal Flap Creation
The purpose of this study is to see how safe the WaveLight Ultraviolet Femtosecond Laser, Model 1026 (UV fs-Laser), is for creating corneal flaps during laser-assisted in situ keratomileusis (LASIK) surgery.
- Trial name
- NCT07036835
- Testing
- LASIK Surgery, UV fs-Laser, IR fs-Laser
- Where
- Australia
- Volunteers
- 128 people
- Sponsor
- Alcon Research
Eye Diseases, Myopia
Swept Source OCT Imaging With the DREAM VG-OCT
The Intalight Dream OCT is the first combo anterior plus posterior device to perform both OCT and OCT-A at depth of 16mm. This is especially useful in patient who are very nearsighted as it allows us to image all in one frame.
- Conditions
- Eye Diseases, Myopia, Glaucoma
- Trial name
- NCT05876689
- Testing
- DREAM OCT
- Where
- United States
- Volunteers
- 154 people
- Sponsor
- Robert T. Chang, MD
Cataract, Astigmatism
Patient Perception of Visual Distortions
The purpose of this study is to evaluate visual distortions reported by pseudophakic patients.
- Trial name
- NCT02203747
- Testing
- Administration of patient self-assessment
- Where
- United States
- Volunteers
- 79 people, healthy volunteers welcome
- Sponsor
- Abbott Medical Optics
Presbyopia
A Safety, Efficacy and Pharmacokinetic Study of AGN-199201 and AGN-190584 in Patients With Presbyopia
This is a safety, efficacy and pharmacokinetics study of the fixed combination of AGN-199201 and AGN-190584 in participants with presbyopia (inability to focus on items close-up).
- Trial name
- NCT02780115
- Testing
- AGN-199201 ophthalmic solution, AGN-190584 ophthalmic solution, AGN-199201 Vehicle
- Where
- 25 sites in United States
- Volunteers
- 151 people
- Sponsor
- Allergan
Myopia
The Effect of Hinge Position and Hinge Width on Corneal Sensation and Dry Eye After IntraLase LASIK Procedure
Corneal sensation is known to play a role in tear secretion. Decreased sensation leads to decreased tear production; and when bilateral, leads to a decreased blink rate as well. Dry eyes are a common side effect of LASIK.
- Trial name
- IDES (NCT00803478)
- Testing
- LASIK
- Where
- United States
- Sponsor
- University of Michigan
Astigmatism
Clinical Evaluation of Hydrogel and Silicone Hydrogel Daily Disposable Toric Contact Lenses
This study was to evaluate the patient subjective experiences of two daily disposable toric contact lenses.
- Trial name
- NCT05805085
- Testing
- Lens A, Lens B
- Where
- Spain
- Volunteers
- 40 people
- Sponsor
- CooperVision, Inc.
Lenses, Intraocular
Tolerance to Residual Astigmatism in Eyes With Vivity®
Low amounts of postoperative residual astigmatism may worsen the visual performance of patients implanted with presbyopia- correcting intraocular lenses (IOLs).
- Trial name
- NCT05392998
- Testing
- Cataract surgery with Vivity intraocular lens implantation
- Where
- Spain
- Volunteers
- 30 people
- Sponsor
- Clínica Rementería
Cataract, Presbyopia
MULTICENTER, DOUBLE-ARM, PATIENT AND ASSESSOR-MASKED, PROSPECTIVE, RANDOMIZED CLINICAL TRIAL TO COMPARE VISUAL PERFORMANCE OF NEGATIVE AND NEUTRAL ASPHERIC MONOFOCAL INTRAOCULAR LENSES
The purpose of this study is to compare the binocular distance, intermediate, and near visual acuity and patient reported outcomes of the Johnson \&Johnson Eyhance and Bausch \& Lomb enVista IOLs.
- Trial name
- NCT07385014
- Testing
- Neutral Aspheric Monofocal IOL, Negative Aspheric Monofocal IOL
- Where
- United States
- Volunteers
- 80 people
- Sponsor
- Milton S. Hershey Medical Center
Myopic Astigmatism
Clinical Outcomes of Small-incision Lenticule Extraction (SMILE) Using Vector Planning Method.
In the past two decades, the femtosecond laser (FSL) technology has been introduced in the corneal refractive surgery filed, and brought a remarkable innovation.
- Trial name
- NCT03947944
- Testing
- SMILE using manifest refraction planning, SMILE using vector planning
- Where
- South Korea
- Volunteers
- 114 people
- Sponsor
- Yonsei University
Myopia
A Study to Evaluate a Modified Contact Lens
This study is being conducted to evaluate the product performance of SofLens daily disposable contact lenses packaged in an investigational Test solution versus SofLens daily disposable contact lenses packaged in the currently…
- Trial name
- NCT01391364
- Testing
- SofLens in investigational solution, SofLens in currently marketed solution
- Where
- United States
- Volunteers
- 438 people
- Sponsor
- Bausch & Lomb Incorporated
Myopia, Progressive
Efficacy and Safety of Low-concentration Atropine for Myopia Control in Chinese Children and Adolescents
To investigate the efficacy and safety of three low-concentration atropine sulfate eye drops (0.01%, 0.025% and 0.05%) in controlling the progression of myopia in Chinese children and adolescents through a two-year clinical trial.
- Trial name
- LAMC (NCT05597163)
- Testing
- low concentration atropine (0.01%), low concentration atropine (0.025%), low concentration atropine (0.05%)
- Volunteers
- 588 people
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Myopia
Evaluation of Wear Experience With One Week Reusable Contact Lenses in Habitual Two Week Reusable Lens Wearers
This open-label study is of current Acuvue® Oasys® wearers (2 - week replacement, reusable lenses) who are satisfied with their current lenses.
- Trial name
- NCT06382064
- Testing
- Biweekly replacement contact lenses, One week replacement contact lenses
- Where
- United States
- Volunteers
- 71 people, healthy volunteers welcome
- Sponsor
- Ohio State University
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