Clinical trials: Error, Refractive
Myopia, Hyperopia
Evaluation of Outcomes Using the Amo Advanced CustomVue Ilasik Procedure
The purpose of this study is to assess the efficacy, predictability and safety of the Advanced CustomVue™ iLASIK procedure (WaveScan WaveFront® System, STAR S4 IR™ Excimer Laser System and IntraLase™ FS System).
- Trial name
- iLASIK (NCT00765960)
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Refractive Errors
Clinical Performance Evaluation of Two Daily Disposable Silicone Hydrogel Toric Contact Lenses
The purpose of this study is to evaluate the rotational behavior of DT1 Toric contact lenses.
- Trial name
- NCT04254003
- Testing
- DT1 Toric contact lenses, AO1DfA contact lenses
- Where
- 2 sites in United States
- Volunteers
- 48 people
- Sponsor
- Alcon Research
Presbyopia
A Study Raindrop Near Vision Inlay in Presbyopes Implanted in Corneal Pockets
The objective of this study is to evaluate the Raindrop® Near Vision Inlay for the improvement of near vision in presbyopes implanted in corneal pockets with a delayed or a non-delayed approach.
- Trial name
- NCT03326869
- Testing
- Raindrop Near Vision Inlay
- Where
- United States
- Volunteers
- 2 people
- Sponsor
- Eye Center of North Florida
Refractive Error - Myopia Bilateral
Comparative Clinical Performance of 59% Hioxifilcon A Contact Lenses vs. Marketed Hydrogel Contact Lenses
The study will compare the short-term clinical performance and wearer and practitioner acceptability of a new-to-market spherical daily disposable (DD) hydrogel soft contact lens to a currently marketed spherical DD hydrogel soft…
- Trial name
- DDHyd (NCT04671108)
- Testing
- Hioxifilcon A standard hydrogel contact lens with Hyaluronic Acid (HA)
- Where
- 3 sites in United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Vision Service Plan
Myopia
A Controlled Evaluation of Optical Defocus Parameters on Transient Changes in Axial Length Using Kubota Glass
This study will assess the optimal performance characteristics of optical defocus on transient changes in axial length with Kubota Glass, using a randomized, double-masked, 5-treatment, 5-period crossover design with…
- Trial name
- NCT07686289
- Testing
- KG1, KG2, KG3
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Kubota Vision Inc.
Refractive Errors
Effect of Colour Temperature of Reading Lamp on Refractive Error Development
This is a 12-month longitudinal randomized controlled trial aiming to evaluate the effect of colour temperature of reading lamp on refractive error development.
- Trial name
- NCT05733182
- Testing
- 3000K Reading lamp, 4500K Reading lamp, 6500K Reading lamp
- Where
- Hong Kong
- Volunteers
- 798 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
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
A Prospective Study of Two Daily Disposable Contact Lenses
The purpose of this study was to evaluate the performance of a novel silicone hydrogel contact lens, DAILIES TOTAL1® (DT1) compared to the standard hydrogel material in 1-DAY ACUVUE® MOIST® (1DAVM) contact lens in contact lens…
- Trial name
- NCT01636986
- Testing
- Delefilcon A contact lenses, Etafilcon A contact lenses
- Volunteers
- 62 people
- Sponsor
- Alcon Research
Myopia
Comparing Silicone Hydrogel Contact Lens Wearers to Hydrogel Contact Lens Wearers and Non-lens Wearers
This study was a multi-site, prospective, randomized, non-masked, unilateral, non-dispensing study.
- Trial name
- NCT04886479
- Testing
- Control, Test Lens
- Where
- 2 sites in Canada, United Kingdom
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Asthenopia, Visual Fatigue
Impact of Red Light Therapy on Alleviating Visual Fatigue in Presbyopes
Visual fatigue, or asthenopia, occurs when visual demands exceed the capacity of the visual system, leading to various ocular discomfort and systemic symptoms.
- Conditions
- Asthenopia, Visual Fatigue, Presbyopia
- Trial name
- NCT06745661
- Testing
- RLRL device
- Where
- Hong Kong
- Volunteers
- 66 people
- Sponsor
- The Hong Kong Polytechnic University
Refractive Errors
Cognitive Level Enhancement Through Vision Exams and Refraction
The investigators aim to conduct a mixed-method study in which a randomised controlled trial (RCT) and a descriptive qualitative study will be conducted.
- Trial name
- CLEVER (NCT05458323)
- Testing
- Free near and Distance Vision glasses
- Where
- India
- Volunteers
- 820 people
- Sponsor
- Queen's University, Belfast
Astigmatism
Comparison of Two Silicone Hydrogel Toric Contact Lenses
The purpose of this research study is to compare the performance of two different types of Alcon soft toric study contact lenses to obtain information on study lens orientation.
- Trial name
- NCT03392532
- Testing
- Lotrafilcon B toric contact lenses with HYDRAGLYDE, Lotrafilcon B toric contact lenses
- Where
- United States
- Volunteers
- 36 people
- Sponsor
- Alcon Research
Cataract, Astigmatism
Assessing the Astigmatism Reducing Effect With Toric IOLs in Eyeswith Low Astigmatism
Comparison of the astigmatism reducing effect of a toric IOL with a non toric IOL in eyes with low corneal astigmatism.
- Trial name
- Low Asti (NCT03538964)
- Testing
- toric intraocular lens, non toric intraocular lens
- Where
- Austria
- Volunteers
- 25 people
- Sponsor
- Prim. Prof. Dr. Oliver Findl, MBA
Myopia, Visual Diet
Longitudinal Measurements of Visual Diet in Children
Myopia is a leading cause of visual impairment worldwide, with prevalence rising rapidly among children. Growing evidence suggests that environmental and behavioral factors play a dominant role in ocular growth; however, current…
- Conditions
- Myopia, Visual Diet, Pupil, Viewing Distance
- Trial name
- VEET (NCT07642999)
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- State University of New York College of Optometry
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
Presbyopia
The Effects of Glasses-Free 3D Training on Visual and Cognitive Function in Presbyopic Individuals
This study aims to evaluate the effectiveness of glasses-free 3D visual training in improving visual function, visual comfort, and the application ability of visual functions in individuals with presbyopia.
- Trial name
- NCT06853691
- Testing
- glasses-free 3D visual training
- Where
- China
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Myopia, Progressive
Low-dose Atropine for Myopia Control in Children
Myopia (nearsightedness) is the most common eye disorder. Only second to age, it is the main risk factor for major degenerative eye diseases such as glaucoma, macular degeneration or retinal detachment.
- Trial name
- AIM (NCT03865160)
- Testing
- Atropine eye drops, 0.01%, Atropine eye drops, 0.02%
- Where
- 19 sites in Germany
- Volunteers
- 302 people
- Sponsor
- University Eye Hospital, Freiburg
Astigmatism
Evaluation of Two Toric Soft Contact Lenses After Two Weeks of Wear
The purpose of this study is to determine the relative performance of a new toric soft contact lens against a toric contact lens currently available in market, specifically with regards to the comfort and vision after two weeks…
- Trial name
- NCT00584220
- Testing
- senofilcon A toric, alphafilcon A toric
- Volunteers
- 96 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Axial Length, Myopia
Study of the Intervention Effect of Outdoor Activity Period Patterns in Promoting Myopia Among Preschool Children
This study is a randomized controlled trial based on outdoor activity interventions at specific time periods, involving preschool children aged 4 to 5 years.
- Trial name
- NCT06607640
- Testing
- Increase outdoor activity time during specific time periods
- Volunteers
- 210 people, healthy volunteers welcome
- Sponsor
- Fangbiao Tao
Myopic Astigmatism
A Study to Investigate the Safety and Effectiveness of the Technolas® TENEO 317 Model 2 Excimer Laser for Laser In Situ Keratomileusis (LASIK) Surgery to Treat Myopia or Myopic Astigmatism
This will be a multicenter, prospective, open label, non-randomized, single arm study evaluating the safety and effectiveness of the Technolas® TENEO 317 Model 2 (version 1.28 US software) Excimer Laser when used in LASIK surgery…
- Trial name
- NCT07377474
- Testing
- TENEO 317 Model 2 (1.28 US) Excimer Laser
- Volunteers
- 32 people
- Sponsor
- Bausch & Lomb Incorporated
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