Clinical trials: Refractive Error - Myopia
Myopia
Corneal WFG Versus AF Trans PRK in Myopic Patients With High Corneal HOA
compare the efficacy, safety and predictability of corneal wavefront guided (WFG) and aberration free ablation in single-step transepithelial photorefractive keratectomy (TransPRK) in myopic patients with high pre-existing…
- Trial name
- NCT03786861
- Testing
- corneal WFG group, aberration free group
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Menoufia University
Myopia
Product Performance of a New Silicone Hydrogel Contact Lens
The objective of this study is to evaluate the product performance of kalifilcon A, compared to the Johnson \& Johnson Acuvue Oasys® 1-Day with HydraLuxe™ (senofilcon A) daily disposable contact lens and Alcon DAILIES TOTAL1®…
- Trial name
- NCT04901897
- Testing
- kalifilcon A, delefilcon A, senofilcon A
- Where
- 35 sites in United States
- Volunteers
- 805 people
- Sponsor
- Bausch & Lomb Incorporated
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, Refractive Errors
A Clinical Trial to Evaluate the Vision Correction Safety and Efficacy of MSiHy Silicone Hydrogel Soft Contact Lens
This is a prospective, randomized, double-blind, parallel, active-controlled, multi-center clinical study. The purpose is to evaluate the safety and effectiveness wearing "MSiHy Silicone Hydrogel Soft Contact Lens".
- Trial name
- NCT06716385
- Testing
- MSiHy Silicone Hydrogel Soft Contact Lens, Monthly Silicone Hydrogel Contact Lenses (oA)
- Where
- 3 sites in Taiwan
- Volunteers
- 134 people
- Sponsor
- Visco Vision Inc.
Myopia, Astigmatism
SMILE (Small Incision Lenticule Extraction) in the DoD (Department of Defense)
The Use of the VisuMaxTM Femtosecond Laser Small-Incision Lenticule Extraction (SMILE) Procedure for the Correction of Myopia with or without Astigmatism study is a prospective, non-randomized, multicenter clinical study that…
- Trial name
- NCT04072289
- Testing
- Visumax spherocylindrical treatment
- Where
- United States
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- United States Naval Medical Center, San Diego
Myopia, High-Grade, Myopia; Refractive Error
AOSLO-Based Precise Measurement of Retinal Hemodynamics: Development and Application Assessment
Changes in retinal hemodynamics play a key role in the development of various eye diseases. Currently, mainstream hemodynamic evaluation techniques have low resolution and poor measurement accuracy, limiting their widespread…
- Trial name
- NCT07051317
- Volunteers
- 120 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Myopia
Efficacy and Safety of the New Defocus Spectacle Lens in Preventing Progression of Myopia
The clinical effects of new technical spectacles with refractive correction function are mixed. A randomised trial is designed to compare the effects of new defocusing spectacle lenses and traditional aspheric spectacle lenses on…
- Trial name
- NCT05740904
- Testing
- New defocus spectacle lenses, Convenional aspheric single-vision spectacle lenses
- Where
- China
- Volunteers
- 174 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Refractive Errors
Measurment of Optic Disc Parameters, RNFL Thickness and Ganglion Cell Complex in Myopic, Hypermetropic and Emmetropic Patients Using OCT and Axial Length Measurments
To evaluate the optic disc parameters, thickness of ganglion cell complex (GCC), and thickness of peripapillary retinal nerve fiber layer (RNFL) in myopic and hyperopic and emmetrop patients using optical coherence tomography…
- Trial name
- NCT07241806
- Testing
- OCT
- Volunteers
- 266 people, healthy volunteers welcome
- Sponsor
- Assiut University
Myopia
Using Contact Lenses and Spectacle Lenses as Myopia Interventions.
Effect of alternating contact lenses and spectacles for myopia control.
- Trial name
- NCT07845721
- Testing
- Test Spectacle Lens & Contact Lens, Control Spectacle Lens & Contact Lens
- Where
- 2 sites in Canada, United Kingdom
- Volunteers
- 58 people
- Sponsor
- CooperVision International Limited (CVIL)
Myopia, Hyperopia
A Clinical Comparison of Proclear® 1 Day Multifocal and Clariti® 1 Day Multifocal 3 Add
The aim of this study is to compare the overall lens satisfaction between two soft multifocal contact lenses.
- Conditions
- Myopia, Hyperopia, Presbyopia
- Trial name
- NCT06869044
- Testing
- omafilcon A lens, Low ADD power somofilcon A lens, Medium ADD power somofilcon A lens
- Where
- United States
- Volunteers
- 67 people
- Sponsor
- CooperVision International Limited (CVIL)
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
Clinical Study Of Nearsightedness; TReatment With Orthokeratology Lenses (CONTROL)
Myopia is a common disease of the eye with increasing prevalence in the Western World as well as in South East Asia where 60-90% of the children are affected.
- Trial name
- NCT03246464
- Testing
- Orthokeratology lenses, Single-vision spectacles
- Where
- Denmark
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Vejle Hospital
Myopia
Comparing a Monthly Replacement Lens Versus a Daily Disposable Lens
The purpose of this study was to compare subjective ratings of lens handling at insertion for a monthly replacement lens versus a daily disposable lens in habitual soft lens wearers.
- Trial name
- NCT06046209
- Testing
- Control Lens, Test Lens
- Where
- Canada
- Volunteers
- 30 people
- Sponsor
- CooperVision, Inc.
Myopia, Hyperopia
Creating LASIK Flaps With the LenSx Femtosecond Laser
This will be a prospective, single-center clinical trial of up to 50 eyes of subjects scheduled to undergo LASIK surgery requiring an initial corneal flap. Subjects will be screened for eligibility.
- Trial name
- NCT01556893
- Testing
- LenSx Laser
- Where
- Hungary
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Alcon LenSx, Inc.
Myopia, Myopia Progression
The Effectiveness and Safety of Two Low-concentration Atropine Sulfate Eye Drops (0.01%/0.02%) for Delaying the Pediatric Myopia Progression
The clinical trial aims to test the effectiveness and safety of two low-dose atropine sulfate eye drops for delaying myopia progression in children and adolescents.
- Trial name
- NCT06708156
- Testing
- Atropine sulfate eye drops 0.01%, Atropine sulfate eye drops 0.02%
- Where
- 25 sites in China
- Volunteers
- 606 people
- Sponsor
- Oupushifang Pharmaceutical Technology Co., Ltd.
Myopia, Progressive
Low-dose Atropine for Myopia Control in Children
Myopia (nearsightedness) is the most common eye disorder. Only second to age, it is the main risk factor for major degenerative eye diseases such as glaucoma, macular degeneration or retinal detachment.
- Trial name
- AIM (NCT03865160)
- Testing
- Atropine eye drops, 0.01%, Atropine eye drops, 0.02%
- Where
- 19 sites in Germany
- Volunteers
- 302 people
- Sponsor
- University Eye Hospital, Freiburg
Hyperopia and Myopia
Evaluation of a New Laser Refractive Vision Correction Using the TENEO™ 317 Model 2
Prospective, post market clinical follow up study with a three months postoperative follow up to evaluate the visual and refractive outcomes of OCTAVIUS treatment when used as intended.
- Trial name
- NCT06997003
- Testing
- Anterior treatment mode, Total treatment mode
- Where
- Czechia
- Volunteers
- 81 people
- Sponsor
- Bausch & Lomb GmbH
Myopia, Progressive
Choroidal Response to Novel Spectacle Lens to Control Myopia Progression
Diurnal variations in the thickness of the choroid have been reported in the literature, and, more recently, the role of the choroid has been studied with respect to its role in myopia (near-sightedness) progression.
- Trial name
- CHERRY (NCT03818880)
- Testing
- Novel spectacle lens design
- Where
- Canada
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- SightGlass Vision, Inc.
Myopia, Ametropia
LED Low-Intensity Red Light for Myopia Control in Youth: Efficacy and Safety Study
The purpose of this clinical trial was to investigate the efficacy and safety of repetitive low-intensity single-wavelength red light from an LED light source in controlling myopia progression in children and adolescents.
- Trial name
- NCT07375589
- Testing
- Red light treatment with 1.6mW LED light source, Red light treatment with 0.001mW LED light source
- Where
- China
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Pseudoexfoliation Syndrome in Cataract Myopic Eyes
Pseudoexfoliation Syndrome in Myopes
A retrospective study of 5753 eyes of cataract surgery patients was conducted at our Clinic. Ocular optical components measured by optical low coherence reflectometry biometer LENSTAR LS 900® of the cataract myopic eyes with…
- Trial name
- NCT01637740
- Volunteers
- 5,753 people
- Sponsor
- General Hospital Sveti Duh
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