Clinical trials: Myopia
Myopia
Exploratory Study on the Effectiveness of Myopia Control Lenses in Slowing Myopia Progression in Young Children
This study will be a mono-center, single-arm, unmasked study evaluating the effectiveness of test lens in slowing myopia progression in children aged 6 to 8 years.
- Trial name
- NCT06857864
- Testing
- Test myopia control lenses (BSL)
- Where
- Singapore
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Essilor International
Myopia, Astigmatism
Randomized, Non-inferiority Trial Comparing SMILE and LASIK
Background: Small Incision Lenticule Extraction or SMILE is a novel form of 'flapless' corneal refractive surgery that was adapted from Refractive Lenticule Extraction (ReLEx).
- Conditions
- Myopia, Astigmatism, Hypermetropia
- Trial name
- NCT01216475
- Testing
- Femtosecond LASIK, Small incision lenticule extraction (SMILE)
- Where
- Singapore
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Singapore National Eye Centre
Myopia
Bromday Versus Nevanac Eye Drops to Control Pain Following Photorefractive Keratectomy
This study will compare the effect of two topical non-steroidal antiinflammatory agents to control pain after photorefractive keratectomy (PRK) eye surgery.
- Trial name
- NCT01475877
- Testing
- Bromfenac
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Virdi Eye Clinic
High Myopia, Choroid
Effect of Caffeine on Ocular Circulation in High Myopes
To investigate the effect of caffeine on ocular circulation by using Optical Coherence Tomography and Optical Coherence Tomography Angiography.
- Trial name
- NCT03294967
- Testing
- Caffeine, Vitamin E
- Where
- Hong Kong
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Virtual Reality Therapy
Digital Defocus Vision Training (DDVT) System Development and Application
Myopia is the first major disease affecting the visual health of young children. With the increase in the use of electronic products and the decrease in the time for outdoor exercise, the incidence of myopia is increasing year by…
- Trial name
- NCT07042022
- Testing
- Development of digital defocus vision training (DDVT)
- Where
- 2 sites in China
- Volunteers
- 116 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Myopia
Myopia Control Efficacy of Second-generation DIMS Spectacle Lenses on Fast Progressing Myopes - Auxiliary Group
The purpose of this study is to examine the efficacy and performance of the Defocus Incorporated Multiple Segments (DIMS) and a variant of DIMS (D2) spectacle lenses on controlling myopia progression in fast progressing myopic…
- Trial name
- NCT05888805
- Testing
- DIMS spectacle lens
- Where
- Hong Kong
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Myopia, Astigmatism
Changes Between Lenticule Extraction and Femtosecond Laser-assisted Laser in Situ Keratomileusis
The aim is to evaluate the short-term changes in ocular surface measures and tear inflammatory mediators after lenticule extraction (FLEx) and femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK) procedures.
- Trial name
- NCT02550353
- Testing
- lenticule extraction, femtosecond laser-assisted laser in situ keratomileusis
- Where
- China
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Myopia, Cornea
Euclid Phoenix Lens Design Trial 2
Lens wettability and subjective comfort of Euclid orthokeratology lenses with and without an enhanced coating will be compared in 50 children. Axial elongation will be monitored in pediatric patients who qualify and consent.
- Trial name
- NCT06392607
- Testing
- Euclid orthokeratology (standard coating), Euclid orthokeratology (enhanced coating)
- Where
- 5 sites in United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Euclid Systems Corporation
Myopia
The Evaluation of Safety and Myopia Progression Control Using Novel Spectacle Lens
The goal of this clinical trial is to test Novel spectacle lenses in myopic children. The main question it aims to answer are: safety and efficacy of the lenses.
- Trial name
- NCT05886348
- Testing
- Model-A Novel spectacle lens, Model-B Novel spectacle lens, Single vision spectacle lens
- Where
- 5 sites in China
- Volunteers
- 249 people, healthy volunteers welcome
- Sponsor
- HOYA Lens Thailand LTD.
Myopia
A Prospective Evaluation of Contrast Sensitivity and Disability Glare in Refractive Surgery, a Sub-Study of: Initial Evaluation of Excimer Laser Keratorefractive Surgery in U.S. Army Personnel (WU # 2335-99)
The purpose of this study is to conduct a prospective assessment of small target contrast sensitivity and disability glare in refractive surgery.
- Trial name
- NCT00413868
- Testing
- LASIK, PRK, Small target contrast sensitivity and disability glare
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Walter Reed Army Medical Center
Myopia, Hyperopia
Evaluation of Silicone Hydrogel Daily Wear Contact Lenses for Up to One (1) Month of Daily Wear
The aim of the study is to evaluate if the performance of Invigor A is substantially equivalent to Invigor B contact lenses when used in a one month recommended replacement, daily wear modality.
- Conditions
- Myopia, Hyperopia, Astigmatism
- Trial name
- NCT03722784
- Testing
- Invigor A (test), Invigor B (control)
- Where
- 6 sites in United States
- Volunteers
- 88 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
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
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
High Myopia
Development and Pathological Changes of High Myopia Among Children and Adolescents in China
The study aims to observe the relationship between the changes of ocular structure parameters and pathological changes among children and adolescents with high myopia.
- Trial name
- NCT03533647
- Testing
- Observational
- Where
- China
- Volunteers
- 1,400 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Myopia, Myopia; Refractive Error
Efficacy and Visual Quality of Orthokeratology Lenses With Different Designs
Orthokeratology (ortho-k) lens is very effective in slowing down axial elongation in myopic children by 30% to 63% when compared to children wearing single-vision spectacles or contact lenses.
- Trial name
- NCT06825585
- Testing
- Orthokeratology with 5.0mm back optical zone diameter, Orthokeratology with a 6.2 mm back optical zone diameter
- Where
- China
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Xiaoyan Yang
Myopia
Evaluation of DW Silicone Hydrogel Lens Compared to DW Silicone Hydrogel Lens
The purpose of this study is to evaluate the performance of the investigational CooperVision silicone hydrogel lens compared to a currently-marketed silicone hydrogel contact lens up to 30 days of daily lens wear.
- Trial name
- NCT01386008
- Testing
- senfilcon A contact lens, investigational enfilcon A
- Where
- 2 sites in United States, United Kingdom
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Myopia, Progressive, Children, Only
Eleven Years of Menicon Z Night Contact Lens Wear in Reducing Myopia Progression in Children
To compare axial length growth of white European myopic children wearing Menicon Z Night orthokeratology contact lenses to a control group of distance, single-vision glasses and contact lenses over an 11-year period.
- Trial name
- MCOS11 (NCT04806711)
- Testing
- Menicon Z Night, Control
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Menicon Co., Ltd.
Myopia, Esophoria
Bifocal Soft Contact Lenses and Their Effect on Myopia Progression in Children and Adolescents.
The purpose of this study is to determine whether bifocal soft contact lenses are effective in controlling the progression of myopia in children and adolescents that exhibit a tendency to excessively cross their eyes while…
- Conditions
- Myopia, Esophoria, Fixation Disparity
- Trial name
- NCT00214487
- Testing
- Bifocal Contact Lenses
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- Aller, Thomas A., OD
Near Vision
Pharmacological Treatment of Presbyopia
In this clinical trial, a total of 75 presbyopic patients in the age range of 40 to 60 years old will be participated. The right eyes of 45 patients will be treated by Biocarpine® and they will be considered as the case group…
- Trial name
- NCT05564832
- Testing
- Pilocarpine 1.25% Eye drop
- Where
- Iran
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Shahid Beheshti University of Medical Sciences
Myopia, Myopia Progression
Children's Viewing Behavior
The aim of this study is to investigate the area of the spectacle lens in which a subject is viewing through regardless of task being performed.
- Conditions
- Myopia, Myopia Progression, Juvenile Myopia
- Trial name
- NCT07229365
- Testing
- Novel spectacle lens design, Spectacle lens designs
- Where
- United States
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- SightGlass Vision, Inc.