Clinical trials: Short-Sighted
Myopia, Astigmatism
Clinical Study to Evaluate Effectiveness of Digital Refraction
Prospective, comparative, randomized, non-masked clinical study to compare the a digital refraction with LogMAR VA testing utilizing trial lenses, to standard manual refraction using a Phoropter, and LogMAR VA testing, in…
- Trial name
- NCT03502863
- Testing
- Digital refraction, Manual Refraction
- Where
- 3 sites in United States
- Volunteers
- 102 people, healthy volunteers welcome
- Sponsor
- Visibly
Myopia
Controlling Myopia Progression With Soft Contact Lenses (Contact Lens Control)
This study is to investigate whether novel soft contact lens optical designs can slow myopia progression
- Trial name
- NCT01829191
- Testing
- Soft Contact Test Lens A, Soft Contact Test Lens C
- Where
- United States
- Volunteers
- 174 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Myopia, Progressive, Choroid Disease
Choroidal Change on OCTA in Eyes With High Myopia
Myopia is a global healthy concern, especially the high myopia and pathological myopia among Asian populations. However, its mechanism still remains largely unclear.
- Trial name
- NCT04255524
- Testing
- Optic coherence tomography angiography (OCTA)
- Where
- China
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- The First Affiliated Hospital with Nanjing Medical University
Nearsightedness
Measuring the Peripheral Optical Quality of The Eye
The goal of the study is to quantify wavefront aberration profiles of the eye with and without contact lens across the visual field. This will enable us to investigate the impact of the aberration on retinal image quality.
- Trial name
- NCT03479827
- Testing
- Monofocal Contact Lens, Bifocal Contact Lens
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- University of Rochester
Myopia
Evaluation of a New Silicone Hydrogel Contact Lens
The objective of this study is to determine the clinical feasibility and to evaluate the product performance of investigational contact lenses developed by Bausch + Lomb.
- Trial name
- NCT01309880
- Testing
- Test lens, Air Optix Aqua
- Where
- United States
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- Bausch & Lomb Incorporated
Myopia, Myopia, Progressive
Kubota Glass Parameter Refinement Study
Length of the eye will be measured in subjects exposed to various stimulus characteristics using an electronic spectacle which presents illuminated targets to the eye.
- Conditions
- Myopia, Myopia, Progressive, Vision Disorders
- Trial name
- NCT06085430
- Testing
- Kubota Glass
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Kubota Vision Inc.
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
Full Spectrum
A Self-controlled Study of the Effect of Partial Spectral Absence of Visible Light on the Pupil
Previous studies have shown that the spectrum of light influences myopia. LED lights with a partially absent light spectrum increase the risk of myopia progression compared to LEDs with a full spectrum, potentially mediated by…
- Trial name
- NCT06501131
- Testing
- full-spectrum light exposure, specific spectrum absence light exposure
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Glaucoma, Diabetic Retinopathy (DR)
"My Eyes, My Light": Amar Chokh, Amar Alo
Eye disease affects 2.2 billion people globally, which in turn adversely affects schooling, economic productivity, and participation in social life.
- Conditions
- Glaucoma, Diabetic Retinopathy (DR), Hypertensive Retinopathy, Cataract
- Trial name
- ACA2 (NCT07135570)
- Testing
- Multimodal Screening for Eye Disease, cataract surgery
- Where
- Bangladesh
- Volunteers
- 20,000 people, healthy volunteers welcome
- Sponsor
- Data Yakka, Inc.
Refractive Error - Myopia Axial, Astigmatism
Refractive Accuracy of "2WIN" and Portable Autorefractors
Youth and some adults have photoscreening refractions and hand-held auto refraction before cycloplegia refraction during new and follow up eye examinations.
- Conditions
- Refractive Error - Myopia Axial, Astigmatism, Accomodation, Visual Impairment
- Trial name
- NCT04249505
- Testing
- "2WIN" Photoscreener, "Plusoptix A12", "Retinomax"
- Where
- United States
- Volunteers
- 708 people, healthy volunteers welcome
- Sponsor
- Alaska Blind Child Discovery
Near Vision
Evaluation of Near Visual Acuity With ODYSIGHT, a Smartphone Based Medical App in Comparison to a Standardized Method
This study evaluates the level of agreement between visual parameters tested using OdySight, a mobile application, and standards in office methods.
- Trial name
- TIL-001 (NCT03457441)
- Testing
- Standards vision tests, OdySight medical application assessment
- Where
- France
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Tilak Healthcare
Myopia
The Model Building and Empirical Research of Eye Health Interventions for Children
The purpose of this study is to determine whether Eye Health Intervention can obviously reduce and delay myopia onset and development and improved the awareness rate of knowledge apparently .
- Trial name
- NCT02903628
- Testing
- eye health education
- Volunteers
- 1,517 people, healthy volunteers welcome
- Sponsor
- Wenzhou Medical University
Myopia, Myopia Progression, Lag of Accommodation, Hyperopic Retinal Blur, Reduction in Contrast
Lag of Accommodation With DOT Spectacle Lenses
The objective of the study is to measure the difference in the lag of accommodation between DOT spectacle lenses and control spectacles.
- Trial name
- ASH (NCT04700111)
- Testing
- DOT Pattern, Control Spectacles
- Where
- Canada
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- SightGlass Vision, Inc.
Ametropia
Study of Soft Contact Lens Use With 7 Day Extended Wear
To compare the safety and efficacy of the CVI silicone-hydrogel lens worn on an extended wear basis for a period of up to 7 days and 6 nights with the Acuvue 2 soft contact lenses.
- Trial name
- NCT00597467
- Testing
- VISA (comfilcon A) Silicone Hydrogel Soft contact lens, Acuvue 2 Soft Contact Lens
- Where
- 23 sites in United States
- Volunteers
- 460 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Myopia
Evaluation of Alcon Ladarvision Wavefront-Guided PRK
The purpose of this study is to: 1. determine the safety of wavefront guided PRK 2. evaluate the efficacy of wavefront guided PRK 3. evaluate the differences in visual quality after treatment of wavefront guided PRK
- Trial name
- NCT00412295
- Testing
- Alcon Ladarvision (Wavefront-guided PRK)
- Where
- 2 sites in United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Walter Reed Army Medical Center
Presbyopia, Ametropia
Clinical Trial With Artiflex Presbyopic (Artiplus)
The purpose of this clinical trial is to evaluate the effectiveness and safety of the multifocal Artiflex Presbyopic (Artiplus) intraocular lens.
- Conditions
- Presbyopia, Ametropia, Refractive Errors, Myopia
- Trial name
- NCT04632784
- Testing
- Artiflex Presbyopic (Artiplus) implantation
- Where
- 7 sites in South Korea, Spain
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- Ophtec BV
Astigmatism, High Myopia
Comparison Between TICL and ICL+AK for High Myopic Astigmatism
To compare the outcomes of a toric Implantable Collamer Lens (ICL) and a spherical Implantable Collamer Lens combined with astigmatic keratotomy (AK) in the correction of high myopic astigmatism.
- Trial name
- NCT03202485
- Testing
- Toric Implantable Collamer Lens, ICL + Astigmatic keratotomy
- Volunteers
- 62 people, healthy volunteers welcome
- Sponsor
- Wenzhou Medical University
Glaucoma, Myopia
Efficacy of Retinal Nerve Fiber Layer (RNFL) / Retinal Thickness Ratio by Cirrus OCT Utilizing Spectral -Domain Technology as a Diagnostic Predictor of Glaucoma
Glaucoma is presumed to be an axonal disease which starts at the lamina cribrosa. This assumption has led to the monitoring of the retinal nerve fiber layer thickness for the diagnosis and monitoring of progression of glaucoma.
- Trial name
- NCT00772993
- Where
- South Korea
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- Yonsei University
High Myopia
Shanghai High Myopia Study for Adults
High myopia retinopathy has become the first cause of irreversible blindness and severe visual impairment in Chinese adults, in order to avoid the blind and visual impairment caused by high myopia retinopathy, it is very…
- Trial name
- SHMSA (NCT03446300)
- Where
- China
- Volunteers
- 2,000 people, healthy volunteers welcome
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Nearsightedness, Astigmatism
High Resolution Wavefront-guided vs. Wavefront Optimized LASIK
The investigators are comparing outcomes of LASIK surgery using a high definition wavefront-guided laser to a wavefront-optimized laser in patients with nearsightedness with and without astigmatism.
- Trial name
- NCT02565537
- Testing
- LASIK
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Stanford University