Clinical trials: Myopia
Myopia
Long-term Effects of Laser Refractive Surgery
This study will determine if there are short- and long-term postoperative differences in visual and corneal outcomes between different laser refractive surgical procedures.
- Trial name
- NCT00350246
- Testing
- Laser Refractive Surgery
- Where
- United States
- Volunteers
- 62 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Near Vision
Evaluation of Near Visual Acuity With ODYSIGHT, a Smartphone Based Medical App in Comparison to a Standardized Method
This study evaluates the level of agreement between visual parameters tested using OdySight, a mobile application, and standards in office methods.
- Trial name
- TIL-001 (NCT03457441)
- Testing
- Standards vision tests, OdySight medical application assessment
- Where
- France
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Tilak Healthcare
Myopia, Corneal Crosslinking
Photorefractive Intrastromal Corneal Crosslinking as a Treatment for Low Grade Myopia
To assess the improvement in refractive error and the corneal endothelial safety with a customized corneal crosslinking treatment regimen for low grade myopia.
- Conditions
- Myopia, Corneal Crosslinking, Refractive Errors, Eye Diseases
- Trial name
- NCT03987880
- Testing
- 4.0 mm treatment, 3.5 mm treatment
- Where
- Sweden
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Umeå University
Myopia, Astigmatism
Multi Laser Platform Comparison Study for LASIK
Comparison of LASIK outcomes using 3 different lasers and a total of 5 different treatment platforms.
- Trial name
- VBLWL-001 (NCT00770094)
- Testing
- Excimer Lasers, Excimer Laser for the LASIK procedure, Excimer Laser for LASIK
- Where
- 3 sites in United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Durrie Vision
Myopia, Mental Health
Intervention for Preventing Myopia and Multimorbidity in Children
This study aims to develop and evaluate a scalable, hybrid intervention model for the co-prevention of myopia, obesity, and mental health issues among children.
- Conditions
- Myopia, Mental Health, Cardiovascular Health Status
- Trial name
- NCT07294222
- Testing
- Standard School Health Education, Multi-component Health Promotion Package
- Volunteers
- 4,000 people, healthy volunteers welcome
- Sponsor
- Fangbiao Tao
Myopia, Astigmatism
Contralateral Comparison of Three Excimer Laser Systems in Performing LASIK
The purpose of this study is to compare LASIK outcomes using the WaveLight ALLEGRETTO WAVE™ wavefront guided or optimized excimer laser treatment with the AMO/VISX CustomVue™ and the LADARVision 4000 excimer laser treatment.
- Trial name
- WLCVLV-001 (NCT00821236)
- Testing
- Excimer Laser, AMO/VISX CustomVue™, LADARVision 4000 excimer laser
- Where
- 2 sites in United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Durrie Vision
Myopia, Refractive Errors
Prevalence and Environmental Factors for Myopia Among Chinese School-aged Children and Adolescent in Tianjin
The high prevalence of myopia has become a global public health problem. The study amied to investigate the prevalence and progression of myopia associated with social environmental factors in Tianjin, a Chinese megacity in north…
- Trial name
- NCT05336799
- Where
- China
- Volunteers
- 500,000 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Adolescents and Children, Axial Elongation
Naked Eye 3D Vision Training for the Prevention and Control of Myopia in Adolescents and Children
The study used children aged 6-18 as subjects to evaluate the efficacy and safety of naked eye 3D vision training for the prevention and control of myopia in adolescents.
- Conditions
- Adolescents and Children, Axial Elongation, Naked Eye 3D Vision Training, Visual Function
- Trial name
- NCT05468775
- Testing
- Naked eye 3D vision training
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Emmetropization, Myopia
Focus-out Glasses on Emmetropization in Chinese Children
The purpose of this study is to characterize the effects of peripheral focous-out glasses on emmetropization in non-myopic Chinese Children Aged 6-8 Years.This is a prospective, parallel-controlled randomized trial.
- Conditions
- Emmetropization, Myopia, Hyperopia
- Trial name
- NCT05689567
- Testing
- DEFOG glasses(peripheral focus-out glasses)
- Where
- China
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- Children's Hospital of Fudan University
Myopia
Effects of Blue of Glasses VS Standard Lenses on Contrast Sensitivity & Visual Fatigue in Myopic & Non-Myopic Adults
This study investigates the effects of blue light-blocking glasses compared to standard lenses on contrast sensitivity and visual fatigue in myopic and non-myopic adults.
- Trial name
- NCT06739525
- Testing
- Blue Light-Blocking Glasses (Intervention Group), Standard Lenses (Control Group)
- Where
- Pakistan
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Superior University
no Obvious Abnormalities, Diabetic Retinopathy (DR)
Retinal Clinical Assessment With AI-derived Quantitative Information
This randomized controlled trial evaluates whether providing clinicians with AI-derived quantitative retinal information improves the quality and efficiency of retinal clinical assessment.
- Conditions
- no Obvious Abnormalities, Diabetic Retinopathy (DR), AMD, Cup-to-disc Ratio Bigger Than 0.5
- Trial name
- NCT07291960
- Testing
- AI-derived retinal quantitative information-assisted reporting
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- Beijing Tongren Hospital
Myopia
Visual Outcomes And Contrast Sensitivity After Myopic Wavefront-Optimized Lasik With Nexisvision Shield Or Bandage Contact Lens
Evaluate visual outcomes and contrast sensitivity for subjects undergoing bilateral myopic LASIK with a Nexisvision Shield or bandage contact lens placed postoperatively.
- Trial name
- NCT01706237
- Testing
- Nexisvision shield
- Volunteers
- healthy volunteers welcome
- Sponsor
- Durrie Vision
Presbyopia, Near Vision
Comparative Study and Validation of New Methodologies for Measuring Addition
The aim of this research is to collect comprehensive data on a presbyopic population that may require near vision correction, in order to identify the most useful tests to accurately determine the value of an addition.
- Conditions
- Presbyopia, Near Vision, Refraction Error
- Trial name
- NCT06963138
- Testing
- Visual Acuity, Objective refraction, Standard Subjective refraction
- Where
- France
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Essilor International
Myopia, Astigmatism
Clinical Study to Evaluate Effectiveness of Digital Refraction
Prospective, comparative, randomized, non-masked clinical study to compare the a digital refraction with LogMAR VA testing utilizing trial lenses, to standard manual refraction using a Phoropter, and LogMAR VA testing, in…
- Trial name
- NCT03502863
- Testing
- Digital refraction, Manual Refraction
- Where
- 3 sites in United States
- Volunteers
- 102 people, healthy volunteers welcome
- Sponsor
- Visibly
Presbyopia
Safety and Efficacy of an Intrastromal Transform™ Corneal Allograft (TCA) for Presbyopia Correction
The objective of this clinical study is to evaluate the safety and effectiveness of intrastromal implantation of the Allotex TransForm corneal allograft (TCA) for improving near vision in presbyopic subjects.
- Trial name
- NCT03671135
- Testing
- TCA Intrastromal Inlay
- Where
- 4 sites in Belgium, Ireland and 1 more
- Volunteers
- 121 people, healthy volunteers welcome
- Sponsor
- Allotex, Inc.
High Myopia, Pregnancy Related
Physiologic Ocular Changes During Pregnancy in Women With High Myopia.
The prevalence of myopia is seemingly increasing, and it is one of the major causes of blindness. High myopia is defined as a refractive error with spherical equivalent exceeding -6 diopters and/or the axial length longer than…
- Trial name
- NCT04773574
- Testing
- Corneal topography, Optical coherence tomography (OCT) and Optical coherence tomography angiography (OCTA)
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Khon Kaen University
Myopia, Progressive
Stellest Lens Wear in Adult Progressing Myopes
It is expected that myopia progression stabilises in the late teenage years, however, some studies report that myopia progression continues through early adulthood in as many as one third of myopes.
- Trial name
- SWAP (NCT06520124)
- Testing
- Essilor® Stellest® spectacle lens, Single-vision spectacle lens
- Where
- United Kingdom
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- University of Ulster
Juvenile Myopia
Control of Myopia Using Novel Spectacle Lens Designs
Randomized, controlled, multisite, subject-and observer-masked, 3-arm parallel group clinical trial of 36-month duration to evaluate the safety and efficacy of a novel spectacle lens design in reducing the progression of juvenile…
- Trial name
- CYPRESS (NCT03623074)
- Testing
- Novel spectacle lens design, Spectacle lenses
- Where
- 14 sites in United States, Canada
- Volunteers
- 266 people, healthy volunteers welcome
- Sponsor
- SightGlass Vision, Inc.
Cataract
Evaluation of Vision After Vivity IOL Implantation With a Target of Slight Myopia in the Non-dominant Eye
The objective is to assess binocular distance-corrected near (40 cm) visual acuity of patients after uneventful cataract surgery with bilateral implantation of the AcrySof® Vivity Intraocular lens (IOL) when the non-dominant eye…
- Trial name
- NCT04482439
- Testing
- Vivity Extended Depth of Focus intraocular lens (IOL)
- Where
- United States
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Newsom Eye & Laser Center
Cataract, Myopia
VCSEL Based Optical Swept Source Biometry
Optical interferometric biometry is a non-invasive and highly precise method for measuring eye length and intraocular distances. The method already exists as commercial devices (e.g. IOLMaster, Carl Zeiss Meditec AG).
- Trial name
- VBOB (NCT06551480)
- Testing
- Biometry
- Where
- Austria
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Rainer Leitgeb