Clinical trials: Error, Refractive
Myopia
Effect of Orthokeratology Versus Spectacles on Myopia Progression in Chinese Children: A Crossover Trial
Orthokeratology is becoming popular for the treatment of myopia children. Many studies have shown that orthokeratology is effective in temporarily reducing refractive error, and is also helpful for controlling myopia progression.
- Trial name
- NCT02186184
- Testing
- Orthokeratology, Spectacle
- Where
- China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Beijing Tongren Hospital
Myopia
A Singapore Study to Assess How Neurovision Improve the Vision of Adults With Low to Moderate Myopia
To evaluate the efficacy of NeuroVision NVC vision correction technology to improve the vision of subjects with Low and Moderate Myopia in Asian eyes in Singapore
- Trial name
- NCT00348075
- Testing
- Neurovision
- Where
- Singapore
- Sponsor
- Singapore National Eye Centre
Refractive Errors
Clinical Data Collection of Myopic Patients After PTK-PRK With CZM MEL 90 Excimer Laser
The objective of the clinical investigation presented to is to verify predictions of post-operative PTK-PRK refractive outcome made by the EpiMaster application software by comparing these to post-operative clinical data after…
- Trial name
- NCT06996353
- Testing
- PTK-PRK refractive treatment
- Where
- 2 sites in India
- Volunteers
- 150 people
- Sponsor
- London Vision Clinic
Myopia, Myopia Progression
The A.R.R.E.S.T.® Spectacle Film Study
The goal of this clinical trial is to learn if spectacle films using Active Reconfiguration in Retinal Encoding of Spatio-Temporal (A.R.R.E.S.T.®) signal technology works to slow down the rate of myopia progression in myopic…
- Trial name
- NCT06692699
- Testing
- Single vision spectacle lens, A.R.R.E.S.T. spectacle film
- Where
- Vietnam
- Volunteers
- 123 people
- Sponsor
- nthalmic Pty Ltd
Astigmatism, Myopia
Evaluation of Two Daily Disposable Contact Lenses for Wearers With Astigmatism
The purpose of this trial is to compare the performance of two contact lenses for contact lens wearers with astigmatism.
- Trial name
- NCT01207466
- Testing
- Nelfilcon A investigational contact lens, Nelfilcon A commercial contact lens
- Volunteers
- 95 people
- Sponsor
- CIBA VISION
Refractive Error - Myopia
Does Undercorrection of Myopia Retard Myopia Progression Among Kindergarten Children?
The purpose of this study is to find out if undercorrection of myopia slow down the progression of myopia in kindergarten children.
- Trial name
- NCT00348166
- Testing
- cyclopentolate
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- KK Women's and Children's Hospital
Myopia, Progressive
Myopia Preventing With Distance-image Screen
This study is for testing the efficacy and safety of distance-image screens for preventing myopia in children for 12 month. Each subjects would be asked to paired test the ocular parameters between before and after 12-month…
- Trial name
- DIS (NCT06088225)
- Testing
- distance-image screen
- Where
- China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Beijing Airdoc Technology Co., Ltd.
Refractive Errors, Ametropia
Performance of Refractometers With Self-adjusting Lenses Compared to Cycloplegia in Children (REFRALENS)
This study aimed to compare refractive measurements using Vision-S™ 700, an immersive and compact phoropter with a tunable-focus lens, and Vision-R™ 800, a phoropter with a tunable-focus lens without immersion, with cycloplegic…
- Trial name
- REFRALENS (NCT06668246)
- Testing
- Vision-S™ 700, an immersive and compact phoropter with a tunable-focus lens, and Vision-R™ 800, a phoropter with a tunable-focus lens without immersion, with cycloplegic refraction serving as the gold
- Where
- France
- Volunteers
- 43 people
- Sponsor
- University Hospital, Brest
Myopia, Convergence Insufficiency
The Health-Related Quality of Life of the Patients With Symptomatic Convergence Insufficiency
This trial is an observational cohort study. Patients aged 8-15 years with symptomatic convergence insufficiency and 150 patients with symptomatic convergence insufficiency who had not received visual training were selected from…
- Trial name
- NCT05948046
- Testing
- Visual training in hospital
- Where
- China
- Volunteers
- 300 people
- Sponsor
- Tianjin Eye Hospital
Myopia
Atropine and Spectacle Combination Treatment (ASPECT): 12-month Results of a Randomized Clinical Trial for Myopia Control
Phase IV clinical trial to evaluate whether there is a significant difference in the control of myopia progression in myopic children treated with 0.025% atropine and DIMS spectacle lenses compared to 0.025% atropine and single…
- Trial name
- ASPECT (NCT06431841)
- Testing
- Atropine 0,025%, DIMS Lenses, Monofocal lenses
- Where
- Spain
- Volunteers
- 111 people
- Sponsor
- Hospital San Carlos, Madrid
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
Clinical Evaluation of a Myopia Control Lens in Slowing Myopia Progression.
This is a mono-centre, prospective, one-arm, unmask clinical trial to evaluate the effectiveness of test lens in slowing myopia progression with respect to axial length elongation compared to a single vision spectacle lens from…
- Trial name
- NCT05534022
- Testing
- Test myopia control lenses (BSL)
- Where
- Singapore
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Essilor International
Myopia
Myopia:the Role of Cone Opsin Mutations & Glasses That Control Axial Elongation
1. To determine the effect of spectacles with a red blocking filter on myopia progression in children. 2. To determine the effect of spectacles with a holographic diffuser that spreads incident light rays over an angle of 0.5…
- Trial name
- NCT01923675
- Testing
- Spectacles with red-blocking tint, Spectacles with holographic diffuser and color neutral tint, Spectacles with holographic diffuser and red-blocking tint
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Washington
Myopia, Hyperopia
Daily Wear Corneal Infiltrative Event Study
This DWCIE Study is a prospective cohort study of patients fit to the FDA approved and marketed lotrafilcon A (Ciba Vision, Air Optix Night \& Day Aqua) soft contact lenses for daily wear (DW) with monthly disposal.
- Conditions
- Myopia, Hyperopia, Corneal Infiltrative Events
- Trial name
- DWCIE (NCT00937105)
- Testing
- lotrafilcon A contact lenses, Renu Multiplus, Clear Care
- Where
- United States
- Volunteers
- 218 people, healthy volunteers welcome
- Sponsor
- University Hospitals Cleveland Medical Center
Myopia, Astigmatism
Toric Orthokeratology - Slowing Eye Elongation
The aims of this study are to investigate the effects of ortho-k for astigmatic and myopic reduction and myopic control in children, and the long term effects on corneal curvatures and biomechanics.
- Trial name
- TO-SEE (NCT00978692)
- Testing
- Toric Orthokeratology lenses, Single-vision spectacles
- Where
- China
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Amblyopia, Anisometropia
Amblyopia (Lazy Eye) Treatment Study
The purpose of this study is to compare the results of two standard treatments for amblyopia in order to find out if one is more effective than the other.
- Conditions
- Amblyopia, Anisometropia, Strabismus
- Trial name
- NCT00001864
- Testing
- Atropine, Patch
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- National Eye Institute (NEI)
Myopia, Anisometropia
Ocular Response Analyzer Assessment of Intraocular Pressure and Corneal Biomechanical Properties in Myopic and Anisometropic Patients Under Atropine Treatment
Our study has three parts has three parts, and the main aim of the study is to find out if corneal hysteresis was associated with myopia or even a predictor of myopia poor control predictor: Part 1 of our study: patients with…
- Trial name
- NCT00658502
- Where
- Taiwan
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Far Eastern Memorial Hospital
Tomography, Visual Acuity
Keratoconus - Screening in Patients With Downs Syndrome
The initial purpose of the study is to determine the true tomographic based age-specific prevalence of keratoconus among Danish patients with Downs Syndrome.
- Conditions
- Tomography, Visual Acuity, Refraction Error
- Trial name
- NCT07800975
- Where
- Denmark
- Volunteers
- 137 people
- Sponsor
- University of Aarhus
Myopia
S.T.O.P.® Technology Contact Lenses Versus Dual-focus Contact Lenses for Slowing Down Myopia Progression in Children
To compare the rate of myopia progression of contact lenses utilising S.T.O.P.® technology against MiSight® contact lenses.
- Trial name
- NCT05243836
- Testing
- S.T.O.P® F2, S.T.O.P® DT, MiSight®
- Where
- 7 sites in China, India and 1 more
- Volunteers
- 441 people
- Sponsor
- nthalmic Pty Ltd
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.