Clinical trials: Refractive Error
Myopia
Corneal Endothelial Cell Injury Induced by Mitomycin-C
our study will investigate the effecacy of Mitomycin-C in TransEpi single step photorefractive keratectomy (PRK) and alcohol assisted PRK
- Trial name
- NCT05548478
- Testing
- Transepithelial PRK/MMC, Alcohol-Assisted PRK/MMC
- Where
- Egypt
- Volunteers
- 60 people
- Sponsor
- Al-Azhar University
Astigmatism
Bilateral Dispensing Study of MyDay Toric, 1-day Acuvue Moist for Astigmatism, and Dailies Aquacomfort Plus Toric Lenses
Bilateral dispensing study of MyDay Toric, 1-day Acuvue Moist for Astigmatism, and Dailies Aquacomfort Plus Toric lenses
- Trial name
- NCT03134248
- Testing
- Dailies Aquacomfort Plus Toric, 1-Day Acuvue Moist for Astigmatism, MyDay Toric
- Where
- Canada
- Volunteers
- 60 people
- Sponsor
- CooperVision, Inc.
Myopia, Progressive
Adverse Events Related to Low Dose Atropine
Progressive myopia can lead to severe vision loss and is associated with retinal detachment, glaucoma, and other comorbidities. Several studies have shown that off-label, low-dose atropine eye drops slow the progression of…
- Trial name
- AELDA (NCT05683535)
- Testing
- Atropine Sulfate
- Where
- United States
- Volunteers
- 148 people, healthy volunteers welcome
- Sponsor
- Scripps Health
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
Performance of Somofilcon A Over One Week in Wearers Adapted to Omafilcon A
The objective of the study is to determine if habitual or adapted contact lens wearers of Omafilcon A can be confidently refit into Somofilcon A lenses and be successful after one week of daily wear.
- Trial name
- NCT03226353
- Testing
- somofilcon A, omafilcon A
- Where
- Canada
- Volunteers
- 77 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Myopia
A Study of the Efficacy and Safety of Two Low-concentration Atropine Sulfate Eye Drops
A randomized, double-blind, placebo-controlled, multicenter, phase III clinical study of the efficacy and safety of two low-concentration atropine sulfate eye drops in slowing the progression of myopia in children
- Trial name
- China-CHAMP (NCT06209320)
- Testing
- Lower dose atropine sulfate eye drops, Low dose atropine sulfate eye drops
- Where
- China
- Volunteers
- 777 people
- Sponsor
- Zhaoke (Guangzhou) Ophthalmology Pharmaceutical Ltd.
Myopia
Effect of Preoperative Pupil Size on Quality of Vision After Wavefront-Guided LASIK
The purpose of this study is to evaluate whether the size of the pupil has an effect on quality of vision in patients undergoing LASIK surgery.
- Trial name
- NCT00889941
- Testing
- LASIK
- Where
- United States
- Volunteers
- 51 people
- Sponsor
- Stanford University
Myopia
Combined Atropine With Orthokeratology in Childhood Myopia Control (AOK) -A Randomized Controlled Trial
This study aims to compare effects in retardation of myopia progression of combined ortho-k and 0.01% atropine therapy with those of ortho-k alone.Myopia control methods mainly focus on optical and pharmaceutical interventions .
- Trial name
- NCT02955927
- Testing
- 0.01% atropine eye drops, ortho-k
- Where
- Hong Kong
- Volunteers
- 89 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Visual Impairment, Refractive Error
Frequency of Visual Impairment Among School Children and Effectiveness of mHealth Referral Reminder on Uptake of Referral Services
This study tested whether mobile health (mHealth) tools can affect referral uptake among schoolchildren with vision problems.Visual impairment in children often goes untreated in low- and middle-income countries, even when…
- Trial name
- NCT06616051
- Testing
- Multicomponent SMS reminder
- Where
- Pakistan
- Volunteers
- 320 people, healthy volunteers welcome
- Sponsor
- Syed Fawad Mashhadi
Pediatric Cataract, IOL Implantation
Myopia Progression Control Using Atropine 0.05% After Pediatric Cataract Surgery And Intraocular Lens Implantation Surgery
Myopic shift remains a debilitating and unpredictable adverse event following pediatric cataract surgery. While research exploring peripheral myopic defocus for post-cataract surgery myopia prevention shows promising results, the…
- Conditions
- Pediatric Cataract, IOL Implantation, Myopia Progression
- Trial name
- NCT07364370
- Testing
- Atropine Eye drops
- Where
- Egypt
- Volunteers
- 50 people
- Sponsor
- Cairo University
Myopia
Evaluating the Efficacy of the Combination of Multi-zonal Contact Lens and Atropine for Controlling Myopia Progression
The aim of the study is to explore efficacy of combination Atropine and multifocal CL. Randomized Control Trial including 4 arms: Atropine / multizonal CL; Atropine/ SV CL, Placebo drop/ multizonal CL; Placebo drop/ SV CL.
- Trial name
- NCT06765603
- Testing
- Atropine 0.025%, Multizonal contact lens, Single vision Contact lens
- Volunteers
- 180 people
- Sponsor
- Singapore National Eye Centre
Esotropia
Conservative Treatment of Esotropia in Children up to 3 Years Old
The objective of this prospective study is the treatment of esotropia by prescribing the full precise optical correction of refractive errors in children up to 3 years old.
- Trial name
- NCT02404324
- Testing
- Prescription of spectacles
- Volunteers
- 150 people
- Sponsor
- National Centre of Ophthalmology named after academician Zarifa Aliyeva
Myopia
Dehydration of Stenfilcon A Contact Lenses Versus Delefilcon A Contact Lenses
The study will explore in vivo lens dehydration rates across a 12hr wear period for the study lenses.
- Trial name
- NCT02366923
- Testing
- stenfilcon A, delefilcon A
- Where
- Canada
- Volunteers
- 28 people
- Sponsor
- CooperVision, Inc.
Refractive Errors
Prevalence of Refractive Errors in Primary School Children
The study aim to determine the prevalence of refractive errors in primary school children aged 6-12 in The New Valley , Egypt .
- Trial name
- NCT05781997
- Testing
- cycloplegic refraction
- Volunteers
- 500 people
- Sponsor
- Assiut University
Retinopathy of Prematurity, Myopia
Prematurity and Ophthalmological Changes
Ophthalmological differences in school-aged children with and without a history of retinopathy of prematurity
- Trial name
- NCT06452524
- Testing
- axial length (AU) and anterior chamber depth (ACD), optical coherence tomography (OCT)
- Where
- Turkey (Türkiye)
- Volunteers
- 211 people, healthy volunteers welcome
- Sponsor
- Ankara City Hospital Bilkent
Myopia, Myopia Progression
Comparing Myopia Control Spectacle Lenses and Standard Single Vision Spectacle Lenses in Children With Myopia
The purpose of this clinical trial is to compare a new myopia control spectacle lens with a standard single vision spectacle lens in slowing the progression of myopia (nearsightedness) in healthy children aged 6 to under 11…
- Trial name
- PEARL (NCT07839091)
- Testing
- Investigational Myopia Control Spectacle Lens, Single Vision Spectacle Lens
- Where
- Singapore
- Volunteers
- 20 people
- Sponsor
- Essilor International
Myopia, Myopia Progression
The A.R.R.E.S.T.® Contact Lens Study
The goal of this clinical trial is to learn if contact lenses 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 compared to…
- Trial name
- NCT06878118
- Testing
- Single-vision contact lens, A.R.R.E.S.T.® contact lens
- Where
- 2 sites in China, Malaysia
- Volunteers
- 80 people
- Sponsor
- nthalmic Pty Ltd
Myopia, Visual Fatigue
Discussion on the Effectiveness of Tea on Blood Pressure, Body Composition and Vision Problems in College Students
Background: Tea is a universal beverage and one of the most popular drinks around the world. Some cell and animal experiments have pointed out that drinking tea may be related to hypotension, body composition and vision problems…
- Conditions
- Myopia, Visual Fatigue, Blood Pressure, Body Composition
- Trial name
- NCT06570226
- Testing
- hibiscus tea
- Where
- Taiwan
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Hungkuang University
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 Error Correction
Clinical Outcomes of the Use of a Femtosecond Laser on an Implanted Intraocular Lens
This is a prospective non-randomized patient controlled single center study which is designed to evaluate the clinical outcomes of the treatment of an implanted intraocular lens using a low-energy femtosecond laser for refractive…
- Trial name
- NCT07473557
- Testing
- Device
- Where
- Panama
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Perfect Lens, LLC