Clinical trials: Refractive Disorders
Accomodation, Refractive Errors
Study on the Effect of Two Ways of Cycloplegia on Biological Parameters of Ciliary Muscle
Atropine has a ciliary muscle-paralysing effect and causes hyperopic drift. Besides, atropine has been proven to slow the progression of myopia. Many studies have suggested that atropine can increase the thickness of the choroid.
- Conditions
- Accomodation, Refractive Errors, Myopia, Cycloplegia
- Trial name
- NCT05449015
- Testing
- 1% atropine
- Where
- China
- Volunteers
- 144 people
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Myopia, Quality of Life
Functional Vision and Quality of Life in a Modern Society - With Emphasis on Myopia and Cerebral Visual Impairment Among Youth
Society has become increasingly digital, and many everyday services have been replaced by digital self-service solutions. This puts greater demands on our vision and our ability to interpret what we see.
- Trial name
- NCT07653074
- Testing
- ophthalmological examination
- Where
- Sweden
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Region Örebro County
Myopia, Randomized Controlled Trial (RCT)
The Rebound Effect on Repeated Low-Level Red Light Therapy for Myopia
Myopia is a global public health issue, projected to affect 49.8% of the world population by 2050, increasing risks of cataracts, glaucoma, macular degeneration, and retinal detachment.
- Trial name
- NCT07748546
- Testing
- Repeated low-level red light (RLRL) therapy
- Volunteers
- 159 people
- Sponsor
- The First Affiliated Hospital of Anhui Medical University
Myopia
Product Performance of a Daily Disposable Contact Lens
The objective of this one week, single group, bilateral, open-label study is to evaluate the product performance of the Bausch \& Lomb daily disposable cosmetic tint contact lens (Test) when worn on a daily disposable basis by…
- Trial name
- NCT01230554
- Testing
- Daily disposable cosmetic tint lens
- Where
- Singapore
- Volunteers
- 212 people, healthy volunteers welcome
- Sponsor
- Bausch & Lomb Incorporated
Myopia
Adaptation To and Satisfaction With Contact Lens Wear In Myopic Young Adults
The purpose of this study was to assess whether young adults could adapt to and achieve satisfaction with a daily disposable contact lens.
- Trial name
- NCT04857723
- Testing
- daily disposable contact lens
- Where
- Canada
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Myopia
Evaluation of the Performance of AIR OPTIX® COLORS
The purpose of this study was to assess the ocular response to and performance of the cosmetically printed silicone hydrogel contact lens AIR OPTIX® COLORS compared to FRESHLOOK® COLORBLENDS.
- Trial name
- NCT01338402
- Testing
- Lotrafilcon B contact lens, Lotrafilcon B contact lens with color, Phemfilcon A contact lens with color
- Where
- Canada
- Volunteers
- 47 people
- Sponsor
- CIBA VISION
Short Bowel Syndrome, Vitamin E Deficiency
Use of Tocofersolan (Vedrop®) to Prevent or Treat Refractive Vitamin E Deficiency in Infants and Children
Patients with short bowel syndrome or other forms of intestinal failure/fat malabsorption are unable to tolerate adequate oral or enteral feedings.
- Trial name
- NCT03582384
- Testing
- Tocofersolan
- Sponsor
- Boston Children's Hospital
Myopia
The Different Design of Orthokeratology
In this study, we intend to enroll orthokeratology subjects aged 8-18 years old with binocular myopia up to and including -4.00 D.
- Trial name
- NCT05956704
- Testing
- Orthokeratology with aspheric wide inversion zone design in the optical zone, Orthokeratology with traditional spherical design in the optical zone
- Where
- China
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Myopia
1 Week Crossover Dispensing Study Between Two Soft Contact Lenses
The objective of this investigation is to compare the visual clinical performance of a silicone hydrogel daily disposable investigational contact lenses to a hydrogel daily disposable commercially available contact lenses.
- Trial name
- NCT06170658
- Testing
- Test Lenses (stenfilcon A), Control Lenses (omafilcon A)
- Where
- Canada
- Volunteers
- 30 people
- Sponsor
- CooperVision, Inc.
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
Study of Atropine Sulfate Eye Drops(0.01%) in Treating Near-work-induced Transient Myopia in Children
This study is a randomized, double-blind, placebo-controlled, parallel-group study to evaluate the safety and efficacy of atropine sulfate eye drops (0.01%) in treating transient myopia induced by near work tasks (NITM) in…
- Trial name
- NCT06697522
- Testing
- Atropine Sulfate
- Where
- China
- Volunteers
- 148 people
- Sponsor
- Ocumension Therapeutics (Suzhou) Co., Ltd
Myopia, High Myopia
The Monitoring and Intervention of Refractive Changes in Children and Teenagers in Tianjin
The study aimed to collect multi-factor information on school-age children with pre-clinical myopia, and to identify the initial factors and warning signs of myopia.
- Trial name
- NCT05691296
- Testing
- Home training, School training
- Where
- China
- Volunteers
- 4,000 people
- Sponsor
- Tianjin Eye Hospital
Myopia
Effect of Vision Therapy in Myopic Children With Poor Accommodative Response
This study aims to determine the treatment effect of vision therapy on myopic children by assessment of accommodative function before and after therapy.
- Trial name
- NCT03006601
- Testing
- Office-based accommodative/vergence therapy
- Where
- China
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Myopia
Clinical Validation of the New Print on Focus DAILIES Toric
The purpose of this study is to validate the improvements to the inversion indicator.
- Trial name
- NCT01097863
- Testing
- nelfilcon A contact lens, modified inversion indicator, nelfilcon A contact lens, no inversion indicator, nelfilcon A contact lens, inversion indicator
- Volunteers
- 280 people
- Sponsor
- CIBA VISION
Myopia, Progressive
Myopia-control Efficacy by Peripheral Defocus Lens (PDL)
The proposed study below aims to assess the effect of customized Bestivue PDL lenses on retinal image quality and myopia control. A total of 160 subjected would be enrolled in and randomized to allcoate into four groups.
- Trial name
- NCT05373693
- Testing
- Single vision lens, +2D PDL, +3D PDL
- Where
- China
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Myopia, Astigmatism
Safety and Efficacy Evaluation of a New Contact Lens Disinfecting Solution in Gas Permeable Contact Lens Wearers
The purpose of this study is demonstrate substantial equivalence of an investigational contact lens disinfecting solution to a commercially available contact lens solution in gas permeable lens wearers.
- Conditions
- Myopia, Astigmatism, Hyperopia, Refractive Error
- Trial name
- NCT01912781
- Testing
- FID 120947A contact lens disinfecting solution, Boston Simplus multi-action solution, Gas permeable contact lenses
- Volunteers
- 112 people
- Sponsor
- Alcon Research
Myopia, Hyperopia
DAILIES TOTAL1® Soft Contact Lenses - Post-Market Clinical Follow-up Study
The purpose of this study is to continuously assess the visual performance and safety of DAILIES TOTAL1 soft contact lenses in a real world setting and broader patient base through routine clinical practices.
- Conditions
- Myopia, Hyperopia, Presbyopia, Astigmatism
- Trial name
- NCT06483113
- Testing
- Delefilcon A spherical soft contact lenses, Delefilcon A toric soft contact lenses, Delefilcon A multifocal soft contact lenses
- Where
- 12 sites in United States
- Volunteers
- 192 people
- Sponsor
- Alcon Research
Myopia
Mitomycin-c Application for PRK
To evaluate the safety and efficacy of 5 seconds mitomycin-C (MMC) application during photorefractive keratectomy (PRK) for patients with low myopia.
- Trial name
- NCT01504282
- Testing
- mitomycin-C
- Where
- Iran
- Volunteers
- 90 people
- Sponsor
- Shahid Beheshti University of Medical Sciences
Myopia
Safety and Efficacy Study of 0.5%, 0.1% & 0.01% Atropine Treatment to Both Eyes In Treatment of Myopia In Children
The purpose of this study is to find an optimal dose of atropine for preventing the rapid progression of myopia in children by comparing the efficacy, safety and functional impact of binocular treatment with 0.5%, 0.1% and 0.01%…
- Trial name
- NCT00371124
- Testing
- Atropine Eye drops
- Where
- Singapore
- Volunteers
- 400 people
- Sponsor
- Singapore National Eye Centre
Myopia
Comparing Myopia Control Efficacy in Children With 4 Methods: Orthokeratology, DIMS, DISK, and SVS.
The goal of this clinical trial is to learn if 3 optical interventions（DIMS, DISC and orthokeratology) to control myopia have different efficacy to slow myopia progression in children when the control is single focus…
- Trial name
- NCT06654180
- Testing
- Orthokeratology, defocus-incorporated multiple segment lenses (DIMS) spectacles, DISK
- Where
- 2 sites in China
- Volunteers
- 100 people
- Sponsor
- Kaikai QIU