Clinical trials: Refractive Error - Myopia
Myopia
Evaluating the Performance of Precision1 Daily Disposable Contact Lens in a Group of Heavy Digital Device Users
The purpose of this study is to evaluate the performance of Precision1 DD CLs with regard to subjective symptoms (dryness, comfort, vision), lens fit and time to haze in CL wearers who identify themselves as heavy digital devices…
- Trial name
- PUG (NCT04201639)
- Testing
- Verofilcon A contact lenses
- Where
- Canada
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- University of Waterloo
Presbyopia, Refractive Errors
Development and Validation of an Internet-based Near and Intermediate-vision Reading Test
Primary objective of our study is to develop and validate an internet-based digital near and intermediate-vision reading test in the greek language.
- Conditions
- Presbyopia, Refractive Errors, Low Vision, Near Vision
- Trial name
- wDDART (NCT04618224)
- Testing
- DDART Testing, wDDART Testing
- Where
- 2 sites in Greece
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Democritus University of Thrace
Myopia
Study Intended to Evaluate the Safety and Effectiveness of a Johnson & Johnson Vision Care Inc, (JJVCI) Contact Lens for Use on an Extended-wear Basis for up to 7 Days (6 Nights).
Study in the US intended to evaluate the safety and effectiveness of a Johnson \& Johnson Vision Care Inc, (JJVCI) contact lens for use on an extended-wear basis for up to 7 days (6 nights).
- Trial name
- NCT00241280
- Testing
- etafilcon A, galyfilcon A
- Where
- 25 sites in United States
- Volunteers
- 504 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Myopia
Myopia Control With Novel Eye Drops
Myopia currently affects 30% of the world and by 2050, almost 50% of the world will be myopic based on conservative estimates.1 In 2050, this will equate to almost 5 billion people with myopia, and those with high myopia will…
- Trial name
- NCT04301323
- Testing
- BHVI1 eye drops, BHVI2 eye drops, BHVI3 eye drops
- Where
- Vietnam
- Volunteers
- 112 people, healthy volunteers welcome
- Sponsor
- Hai Yen Eye Care
Myopia, High, With Cataract and Anterior Capsule Polished
The Influences Of Anterior Capsule Polishing On Anterior Capsular Changes and Intraocular Lenses Stability of Super High Myopic Eyes
A prospective study included 20 patients with super high myopia who underwent bilateral uneventful cataract. 360°anterior capsule polishing was performed with double-ended capsule polisher randomly in one eye, and the opposite…
- Trial name
- NCT03142269
- Testing
- 360°anterior capsule polishing
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- yin ying zhao
Myopia
Sustained Effect of Red-light Therapy for Myopia Control: A 2-Year Post-Trial Follow-up Study
To evaluate the long-term efficacy and safety of red-light therapy for myopia control over 2 years, and the potential rebound effect after treatment cessation.
- Trial name
- NCT06232161
- Testing
- Red-light therapy device, Spectacles
- Where
- China
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Beijing Airdoc Technology Co., Ltd.
Age - Related Macular Degeneration (AMD), Diabetic Macular Edema
Wide Field OCTA in Ocular Diseases
The main retinal diseases, whether or not associated with specific mutations genetic, cause progressive degeneration of vascular retinal structures and not vascular, resulting in decreased visual function.
- Conditions
- Age - Related Macular Degeneration (AMD), Diabetic Macular Edema, Diabetic Retinopathy, Myopia
- Trial name
- WOOD-2025 (NCT07298174)
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- IRCCS San Raffaele
Myopia
Screening for Hyperopic Reserve in Kindergarten
Screening for hyperopic reserve among senior kindergarten children is an important population-based eye health measure. Hyperopic reserve refers to physiological hyperopia in young children, which acts as a natural buffer against…
- Trial name
- NCT07851532
- Where
- China
- Volunteers
- 134,000 people, healthy volunteers welcome
- Sponsor
- Beijing Tongren Hospital
Myopia, Refractive Errors
Prevalence and Environmental Factors for Myopia Among Chinese School-aged Children and Adolescent in Tianjin
The high prevalence of myopia has become a global public health problem. The study amied to investigate the prevalence and progression of myopia associated with social environmental factors in Tianjin, a Chinese megacity in north…
- Trial name
- NCT05336799
- Where
- China
- Volunteers
- 500,000 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
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, Environment
Environmental Factors and Myopia Prevalence Among Uyghur Students in Remote China
Ophthalmologic screening performs annually. Main information collected: gender, age, race, school, visual acuity, autorefractive results.
- Trial name
- NCT07119723
- Where
- China
- Volunteers
- 100,000 people, healthy volunteers welcome
- Sponsor
- Tianjin Medical University Eye Hospital
Myopia
Fitting Evaluation of Hydrogel and Silicone Hydrogel Sphere Design Contact Lenses
The aim of this non-dispensing fitting study is to evaluate the short term lens fit, vision performance of three monthly replacement sphere lenses.
- Trial name
- NCT03098745
- Testing
- Omafilcon A, Somofilcon A, Omafilcon A - Proclear (PC)
- Where
- Mexico
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- CooperVision, 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, Myopia, Moderate
Software Refraction With Mobilerone Versus Retinoscopy
Software refraction in the mobilerone for myopia and astigmatism is a novel medical device for myopia adults and elder children with or without astigmatism.
- Conditions
- Myopia, Myopia, Moderate, Astigmatism
- Trial name
- SRMR (NCT06059521)
- Testing
- Software refraction with Eye Test Technology in a mobilerone, Retinoscopy
- Where
- 3 sites in China
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Beijing Airdoc Technology Co., Ltd.
Keratomileusis, Laser In Situ
The Role of Psychosocial and Other Quality of Life Parameters in Evaluating Functional Changes Prior to and Following Laser In-situ Keratomileusis (LASIK)Changes Laser In-situ Keratomileusis (LASIK)
To evaluate the changes in quality of life parameters after LASIK surgery.
- Trial name
- NCT00344604
- Testing
- Role of psychosocial and quality of life parameters prior to and following LASIK.
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
Axial Myopia, Refractive Errors
Evaluation of Progression of Myopia in Children Treated With Vitamin B2 and Outdoor Sunlight Exposure
The investigators plan on using riboflavin (a Vitamin that can easily be taken orally each day) and having the children involved in the study play outside (where there is UV light created by the sun) in order to prevent the eye…
- Trial name
- NCT03552016
- Testing
- Oral Riboflavin
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia
Myopic Choroidal Neovascularization
Ranibizumab for Myopic Neovascularization
The purpose of this study is to evaluate the clinical results of anti-VEGF intra-vitreal injections (IVT) in CNV secondary to pathologic myopia (PM-CNV).
- Trial name
- NCT01246089
- Testing
- ranibizumab injection
- Where
- Brazil
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Instituto de Olhos de Goiania
Myopia
The Effects of Low Dose Atropine on Choroidal Thickness
Atropine eye drops are considered to be an effective form of myopia control in human eyes. However, the mechanism by which it exerts it effects are not fully understood.
- Trial name
- NCT03544827
- Testing
- Atropine
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- State University of New York College of Optometry
Myopia
Identification of Genomic Loci Determining Susceptibility to the Development of High Myopia
Compelling evidence of genetic components in high myopia has been put forward by several studies. Twin cohorts, familial linkage studies and population studies has described at least 10 loci containing genes involved in the…
- Trial name
- ASSOMYP (NCT02583620)
- Testing
- blood sample
- Where
- 4 sites in France
- Volunteers
- 553 people, healthy volunteers welcome
- Sponsor
- University Hospital, Toulouse
Hyperopia, Myopia
On-Eye Optical Quality of Lotrafilcon B Lenses Over 12 Hours
The current study aims to systematically investigate the diurnal variation in the optical quality of soft contact lenses on eye throughout the day. Subject reported quality of vision will also be evaluated.
- Trial name
- NCT03881670
- Testing
- Lotrafilcon B, lotrafilcon B with Hydraluxe
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Indiana University