Clinical trials: Eye--Refractive Errors
Myopia
Electronic Spectacles Versus Low Dose Atropine in Young Myopes
This is a bilateral, dispensing, masked, randomized clinical trial. Myopic children will be randomly assigned to one of the following: (1) Investigational clinical prototype (CP1) device without atropine, (2) Investigational CP1…
- Trial name
- NCT06034379
- Testing
- eSpectacle Clinical prototype (CP1) device, 0.01% atropine
- Where
- Taiwan
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Kubota Vision Inc.
Ametropia
Comparison of Two Toric Contact Lenses on Current Toric Wearers
The purpose of this study is to evaluate and compare the clinical performance of two toric contact lenses amongst 110 subjects, 2-week, single masked (subject), daily wear, randomized, bilateral, crossover study; 4 weeks…
- Trial name
- NCT00639379
- Testing
- senofilcon A toric, alphafilcon A toric
- Where
- 7 sites in United States
- Volunteers
- 89 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Astigmatism, Phacoemulsification
Effectiveness and Safety of Limbal Relaxing Incisions for Correcting Post Phacoemulsification High Astigmatism
To compare the effect of Limbal relaxing incisions (LRIs) plus spectacle correction versus spectacle correction alone on subjective and objective improvement in visual function for correcting post phacoemulsification high…
- Trial name
- NCT06896357
- Testing
- Limbal relaxing incisions
- Volunteers
- 30 people
- Sponsor
- Assiut University
Retinal Detachment, Lens Diseases
Retinal Detachment After Lens Surgery in the Nearsighted
This study aims to study the incidence of retinal detachment in the nearsighted myopic after phakoemulsification lens surgery and use of posterior chamber foldable soft implants with a follow-up of 5 years and preliminary results…
- Conditions
- Retinal Detachment, Lens Diseases, Short-Sighted
- Trial name
- A09F0401 (NCT04072939)
- Testing
- Patients having had a lens surgery
- Volunteers
- 101 people
- Sponsor
- University Hospital, Bordeaux
Myopia, Hyperopia
A Prospective Safety and Effectiveness Study of the 500 Hz Technolas Perfect Vision Excimer Laser in Asian Eyes Using LASIK
This clinical study has been planned to evaluate the safety and effectiveness of common treatment algorithms using 500 Hz laser repetition rate.
- Conditions
- Myopia, Hyperopia, Presbyopia
- Trial name
- NCT01977807
- Testing
- Proscan, Zyoptix and Supracor
- Where
- Philippines
- Volunteers
- 100 people
- Sponsor
- Technolas Perfect Vision GmbH
Astigmatism, Myopia
Effect of Head and Gaze Position on Soft Toric Contact Lens Performance
Primary Hypotheses: Senofilcon A will provide significantly less rotation with subjects in a recumbent position than Filcon II 3 monthly .
- Trial name
- NCT01579045
- Testing
- senofilcon A, etafilcon A, nelfilcon A
- Where
- United Kingdom
- Volunteers
- 24 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Myopia, Refractive Errors
Real-World Study of Myopia Prevention and Control in Children
This prospective, school-based cohort study aims to enroll approximately 15,000 primary school students from multiple districts in Shanghai, China and to observe the outcomes on myopia prevention and control in children with…
- Conditions
- Myopia, Refractive Errors, Children, Cohort
- Trial name
- NCT06849895
- Where
- China
- Volunteers
- 15,000 people, healthy volunteers welcome
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Myopia, Hypermetropia
Comparison Between Myopia Versus Hypermetropia With Progressive Addition Lenses in Computer Users
This study examines how myopia (nearsightedness) and hyperopia (farsightedness) affect the use of progressive addition lenses (PALs) for computer users.
- Trial name
- NCT06484257
- Testing
- Myopia, Hypermetropia
- Where
- Pakistan
- Volunteers
- 64 people
- Sponsor
- Superior University
Myopia
A Clinical Evaluation of Two Contact Lenses Used With Three Care Systems
The objective of the study was to compare the clinical performance of the two contact lenses when used in combination with three care systems.
- Trial name
- NCT04195581
- Testing
- comfilcon A, fanfilcon A
- Where
- United Kingdom
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Myopia Progression
Orthokeratology Lens Decentration with Two Designs of Corneal Refractive Therapy™ Lenses: a One-year Prospective Study
Background/Objectives: To examine the trend of treatment zone (TZ) decentration over 12 months of Orthokeratology (OK) wear using two corneal refractive therapy (CRT) lens designs: standard (STD) and dual axis (DA).
- Trial name
- NCT06726499
- Testing
- Spherical CRT, Toric CRT
- Where
- Spain
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Universidad Complutense de Madrid
Myopia
Study of the MEL 80 Excimer Laser Using LASIK in the Treatment of Moderate to High Myopia
The purpose of this study is to determine whether the MEL 80 Excimer Laser is effective in the treatment of moderate to high myopia (nearsightedness), when used as part of the Laser In Situ Keratomileusis (LASIK) procedure.
- Trial name
- NCT00762541
- Testing
- MEL 80 Treatment of High Myopia
- Where
- 5 sites in United States
- Volunteers
- 129 people, healthy volunteers welcome
- Sponsor
- Carl Zeiss Meditec, Inc.
Refractive Error, Myopia
A Comparison of Two Daily Disposable Contact Lenses.
This study seeks to evaluate the clinical fitting performance of a new daily disposable contact lens to an existing daily disposable contact lens.
- Trial name
- NCT00721500
- Testing
- etafilcon A, narafilcon A
- Where
- United Kingdom
- Volunteers
- 25 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Refractive Ametropia, Astigmatism
1-Week Dispensing Evaluation of REVIVE™ Toric Soft Contact Lenses
Experienced soft contact lens wearing subjects were enrolled in this 1-week, post-market, bilateral, repeated measures, dispensing study.
- Trial name
- NCT06053736
- Testing
- REVIVE Toric Soft Contact Lenses
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Bausch & Lomb Incorporated
Refractive Errors
Air Optix® Night and Day® Aqua Continuous Wear
The purpose of this retrospective, Post-Market Clinical Follow-Up (PMCF) study is to assess the long term performance and safety of Air Optix® Night and Day® Aqua (AONDA) contact lenses in a real-world setting when worn as 30…
- Trial name
- NCT05992675
- Testing
- Lotrafilcon A contact lenses, Balafilcon A contact lenses
- Where
- 8 sites in United States
- Volunteers
- 1,256 people
- Sponsor
- Alcon Research
Ametropia
Clinical Characterization of Symptomatic Populations
This is an unmasked, non-randomized, single arm, stratified, dispensing investigation of symptomatic and asymptomatic subject populations.
- Trial name
- NCT03319212
- Testing
- senofilcon A contact lenses
- Where
- 2 sites in United States, Canada
- Volunteers
- 105 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Myopia, Astigmatism
Z8 OCT-controlled 2D vs 3D LASIK
The aim of this study was to test the hypothesis that OCT-guided 110 µm targeted flaps will result in accurate, predictable, and precise thickness flaps, with low complication rates when performed and compared using both 2D and…
- Trial name
- NCT04426175
- Testing
- 2D and 3D cutting method using a low energy Femtosecond laser LDV Z8 for LASIK flap cutting
- Where
- Germany
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- Zentrumsehstarke Hamburg
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
Astigmatism
Prospective Evaluation of the Long-term Effectiveness of the Femtosecond Laser-assisted Arcuate Incisions
This clinical study is an open, controlled, prospective, single center, single-surgeon, post-market-clinical-follow-up study to evaluate the long-term (18 months) effectiveness of the femtolaser-assisted astigmatic keratotomy.
- Trial name
- NCT02164994
- Where
- Czechia
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Technolas Perfect Vision GmbH
Myopia
Effect of Using Myopia Prediction Algorithm on Myopia School-aged Children
In this study, the investigators aim to perform a prospective, randomized controlled study to compare the myopia development between myopia children using myopia prediction algorithm and myopia children without using myopia…
- Trial name
- NCT04045951
- Testing
- Myopia prediction algorithm
- Where
- China
- Volunteers
- 2,138 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Presbyopia
An Evaluation of the Efficacy and Safety of CSF-1 in the Temporary Correction of Presbyopia (NEAR-2)
This is a 4-visit, multi-center, randomized, double-masked, vehicle-controlled study evaluating the safety and efficacy of CSF-1 in the temporary correction of presbyopia.
- Trial name
- NEAR-2 (NCT04599972)
- Testing
- CSF-1, Vehicle
- Where
- 18 sites in United States
- Volunteers
- 304 people
- Sponsor
- Orasis Pharmaceuticals Ltd.
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