Clinical trials: Refractive Assessment, open to volunteers
Refractive Disorders
Evaluation of the Effects of Virtual Reality on Preoperative Anxiety in Refractive Surgery
The objective of this study is to determine to what extent the use of a software application prior to refractive surgery involving multisensory immersion (visual and auditory) in a hypnotic and relaxing sound and visual…
- Trial name
- ERVAN (NCT07050498)
- Testing
- Virtual reality, Usual Care Group
- Where
- France
- Volunteers
- 68 people
- Sponsor
- GCS Ramsay Santé pour l'Enseignement et la Recherche
Presbyopia
Evaluation of Refractive Outcomes in Patients Undergoing PRESBYOND Using the MEL90 Excimer Laser
The goal of this clinical trial is to collect information on vision outcomes in people aged 45 to 65 who have difficulty seeing clearly at near distances due to aging (a condition called presbyopia).
- Trial name
- NCT06960785
- Testing
- MEL90 excimer laser - PRESBYOND
- Where
- 3 sites in Australia, New Zealand
- Volunteers
- 75 people
- Sponsor
- Carl Zeiss Meditec AG
Presbyopia
VisDura VisAbility™ Micro Insert System Pre-market Clinical Trial
The primary study objective is to evaluate the safety and effectiveness of the VisAbility™ Micro Insert System for improvement in binocular distance corrected near visual acuity in presbyopic patients.
- Trial name
- NCT07637500
- Testing
- VisAbility™ Micro Insert System
- Where
- 2 sites in Germany
- Volunteers
- 33 people
- Sponsor
- VisDura, Inc.
Myopia, Progressive
To Evaluate the Efficacy and Safety of an Defocus Lens in Slowing the Progression of Myopia
To confirm the efficacy of DIMS lenses in controlling myopia progression, we planned a prospective, single-centre, randomised, double-blind, controlled, non-inferiority clinical study.
- Trial name
- NCT06405711
- Testing
- frame lens
- Where
- China
- Volunteers
- 138 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Astigmatism
Arcuate Incisions With Light Adjustable Lens for Astigmatism Correction in Lens Surgery
This study aims to evaluate the safety and effectiveness of femtosecond laser arcuate corneal relaxing incisions (AK) combined with Light Adjustable Lens (LAL) implantation for correcting pre-existing corneal astigmatism in…
- Trial name
- NCT07140653
- Testing
- Femto arcs, Light Adjustable Lens (LAL)
- Where
- 2 sites in United States
- Volunteers
- 60 people
- Sponsor
- Center For Sight
Myopia
Wearability of and Myopia Progression With ZEISS MyoCare Spectacle Lenses
This is a clinical trial evaluating the wearability and effectiveness of three types of ZEISS spectacle lenses in controlling myopia progression.
- Trial name
- NCT07021560
- Testing
- ZEISS MyoCare spectacle lenses, ZEISS SV RX SPH 1.5, ZEISS Clearview
- Where
- Vietnam
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- ZEISS Vision Care
Myopia
Clinical Investigation of a Novel Spectacle Lens on Slowing Down Juvenile Myopia Progression
The goal of this exploratory clinical trial is to evaluate the efficacy and safety of a test spectacle lens (standard single vision lens (SVL) during first year, and standard myopia control lens (MCL) in second year), designed…
- Trial name
- NCT06850168
- Testing
- SVL, SVL with passive red-light emission, MCL
- Where
- Singapore
- Volunteers
- 35 people
- Sponsor
- Essilor International
Presbyopia
Evaluation of Functional Superiority of the Morrow eProgressive
Presbyopia is a common age-related condition where the eye loses its ability to focus on nearby objects, typically from around age 45.
- Trial name
- EPACT (NCT07878416)
- Testing
- 3 weeks wearing of study device instead of their current wearing solution
- Where
- 3 sites in Belgium, Italy
- Volunteers
- 50 people
- Sponsor
- Morrow Eyewear
Intraocular Lens, Cataract
Evaluation of Safety and Effectiveness of an IOL With a Virtual Aperture Optic
Cataracts are cloudy areas in the lens of the eye that can cause changes in vision. Symptoms of cataracts include cloudy or fuzzy vision and sensitivity to glare.
- Conditions
- Intraocular Lens, Cataract, Presbyopia
- Trial name
- NCT05955846
- Testing
- cataract surgery, implantation of device IOL FG-80030.1
- Where
- 8 sites in Portugal, Spain and 1 more
- Volunteers
- 60 people
- Sponsor
- Z Optics, Inc.
Myopia, Myopia, Progressive
Study to Evaluate the Efficacy of Alleance® (Atropine Sulfate 0.01%) as a Treatment to Delay Myopia and Axial Ocular Elongation in Children.
Phase III clinical study to evaluate the efficacy of Alleance® (atropine sulfate 0.01%) ophthalmic solution through the incidence of unexpected adverse events, changes in Best Corrected Visual Acuity (BCVA), changes in…
- Trial name
- NCT06389110
- Testing
- Alleance®
- Where
- Mexico
- Volunteers
- 123 people, healthy volunteers welcome
- Sponsor
- Laboratorios Sophia S.A de C.V.
Presbyopia
Efficacy and Safety of BRIMOCHOL PF and CARBACHOL PF in Chinese Presbyopia Patients
A multicenter, randomized, double-Blind, crossover, placebo-controlled Phase II clinical Study to evaluate the efficacy and safety of BRIMOCHOL PF and CARBACHOL PF in the treatment of Chinese patients with presbyopia.
- Trial name
- NCT06948357
- Where
- China
- Volunteers
- 119 people
- Sponsor
- Zhaoke (Guangzhou) Ophthalmology Pharmaceutical Ltd.
Cataract
A Prospective, Single-Arm Clinical Evaluation of Visual, Refractive, and Patient-Reported Outcomes Following Bilateral Implantation of the TECNIS PureSee™ Extended Depth of Focus Intraocular Lens
Assess the visual, refractive, and patient-reported outcomes - including spectacle independence - of bilateral cataract surgery with implantation of the TECNIS PureSee extended depth of focus (EDOF) IOL in subjects with visually…
- Trial name
- NCT07790887
- Testing
- PureSee IOL
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- Vance Thompson Vision
Myopia
Evaluation of the Efficacy of Red Light in Adult Patients With High and Extreme Myopia
This study, led by Jie ying from the Ophthalmology Department of Beijing Tongren Hospital Affiliated to Capital Medical University, is a researcher-initiated clinical trial (IIT) designed to evaluate the therapeutic efficacy of…
- Trial name
- NCT07412678
- Testing
- Red light, Single vision spectacle lenses
- Where
- China
- Volunteers
- 128 people
- Sponsor
- Beijing Tongren Hospital
Near Vision, Refractive Error Correction
Clinical Outcomes of the Use of a Femtosecond Laser Treatment in a Patient With Implanted Monofocal IOLs
This study aims to assess the safety and efficacy of evaluating near vision or refractive error in eyes implanted with a mono focal intraocular lens (IOL) using a low-energy femtosecond laser.
- Trial name
- NCT07447622
- Testing
- Device
- Where
- Czechia
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Perfect Lens, LLC
Myopia, Soft Contact Lenses
A Clinical Trial Assessing the Efficacy and Safety of ST-1 Silicone Hydrogel Daily Disposable Soft Contact Lenses Compared to Miru 1day UpSide
This study will enroll 63 eligible subjects (126 eligible eyes, complete at least 108 evaluable eyes) in approximately 6 different medical centers in Taiwan, in order to evaluate the efficacy and safety of ST-1 silicone hydrogel…
- Conditions
- Myopia, Soft Contact Lenses, Daily Disposable Soft Contact Lenses
- Trial name
- NCT07345416
- Testing
- ST-1, Miru 1day UpSide
- Where
- 6 sites in Taiwan
- Volunteers
- 63 people, healthy volunteers welcome
- Sponsor
- Menicon Co., Ltd.
Nearsightedness, Farsightedness
An Evaluation of LASIK, SMILE and PRK Surgery in Physicians
The principle investigator is evaluating self-reported quality of vision and quality of life in physicians undergoing LASIK, SMILE and PRK surgery.
- Conditions
- Nearsightedness, Farsightedness, Astigmatism
- Trial name
- NCT02576483
- Testing
- Questionnaire (QoV questionnaire)
- Where
- United States
- Volunteers
- 700 people, healthy volunteers welcome
- Sponsor
- Stanford University
Juvenile Myopia, Myopia
Assessment of DOT Spectacles in Chinese Children Extension
This is a randomized, controlled, open-label, evaluator-blinded, multicenter, clinical trial of 12-months duration to evaluate the continued safety and efficacy of Diffusion Optics Technology (DOT) spectacle lenses in reducing…
- Trial name
- CATHAY Ext (NCT07008001)
- Testing
- Novel spectacle lens design
- Where
- 5 sites in China
- Volunteers
- 175 people, healthy volunteers welcome
- Sponsor
- SightGlass Vision, Inc.
Refractive Errors
Cognitive Level Enhancement Through Vision Exams and Refraction
The investigators aim to conduct a mixed-method study in which a randomised controlled trial (RCT) and a descriptive qualitative study will be conducted.
- Trial name
- CLEVER (NCT05458323)
- Testing
- Free near and Distance Vision glasses
- Where
- India
- Volunteers
- 820 people
- Sponsor
- Queen's University, Belfast
Anisometropia, Myopia
Targeted Lens Intervention for Myopic Anisometropia in Children
The goal of this clinical trial is to learn if our research spectacles will lower the difference in prescription (spectacles degree) between the eyes in children between 6 to 13 years old with anisometropic myopia.
- Trial name
- NCT07533149
- Testing
- More myopic eye: MCL1; Less myopic eye: MCL2
- Where
- Singapore
- Volunteers
- 20 people
- Sponsor
- Essilor International
Refractive Surgery, Refractive Error - Myopia
Evaluate the Safety and Effectiveness of the AccuraSee™ IOPCL for Secondary Implantation in the Capsular Bag to Improve Near and/or Intermediate Vision Following Previous Cataract Surgery
This is a study to evaluate the safety and effectiveness of the AccuraSee™ intraocular pseudophakic capsular lens (IOPCL) to improve near and/or intermediate vision following previous cataract surgery.
- Trial name
- NCT06625749
- Testing
- Accurasee™ IOPCL
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- OnPoint Vision Inc