Clinical trials: Eye--Refractive Errors
Age-Related Macular Degeneration, Polypoidal Choroidal Vasculopathy
Pharmacogenomic Study on Anti-VEGF Medicine in Treatment of Macular Neovascular Diseases
Macular neovascular diseases including age-related macular degeneration (AMD), polypoidal choroidal vasculopathy (PCV), pathological myopia (PM) and etc. can cause severe vision loss.
- Conditions
- Age-Related Macular Degeneration, Polypoidal Choroidal Vasculopathy, Pathological Myopia, Conbercept
- Trial name
- NCT03128463
- Testing
- Intravitreal injection of conbercept
- Where
- China
- Volunteers
- 5,000 people
- Sponsor
- Xun Xu
Astigmatism
Non-dispensing Study to Check Prescription Equivalence of Two Daily Disposable Toric Contact Lens Types
The purpose of this study is to determine whether the prescription determined for a new daily disposable toric contact lens will be a good match to a prescription determined for an existing brand of lens.
- Trial name
- NCT01120782
- Testing
- etafilcon A toric contact lens with new wetting agent, etafilcon A toric contact lens
- Where
- 2 sites in United States
- Volunteers
- 45 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Myopia, Progressive
Double Helix Design Defocus Lens Spectacle (RACE) for Myopia Control
This study uses 1.585 double helix defocus lens PC lenses with a unique optical design that includes a globally coherent visible area and complementary left and right helices that can form clear images.
- Trial name
- NCT05894382
- Testing
- Double Helix Design Defocus Lens Spectacle (RACE), single-vision spetacle lens
- Where
- China
- Volunteers
- 236 people
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Myopia, Hyperopia
A Prospective Safety and Effectiveness Study of the 500 Hz Technolas Perfect Vision Excimer Laser Using LASIK
This clinical study has been planned to evaluate the safety and effectiveness of a common treatment algorithms (Proscan) using 500 Hz laser repetition rate.
- Trial name
- NCT02071576
- Testing
- Proscan
- Where
- China
- Volunteers
- 42 people
- Sponsor
- Technolas Perfect Vision GmbH
Myopia
Evaluating the Efficacy and Safety of Contact Lens Lubricant in Rigid Gas Permeable Corneal Contact Lens Wearers
This trial aims to evaluate the safety and effectiveness of LACRIFRESH OCU-DRY 0.3% OSD, a contact lens lubricant produced by AVIZOR, S.A.
- Trial name
- NCT07091825
- Testing
- LACRIFRESH OCU-DRY 0.3% OSD, Rigid contact lens lubricant
- Where
- 3 sites in China
- Volunteers
- 152 people
- Sponsor
- Avizor SA
Myopia
An Evaluation of the Effectiveness of Dual Focus Soft Contact Lenses in Slowing Mypoia Progression
The purpose of this study is to determine whether a new type of soft contact lens with a unique optical design (dual focus) is effective at slowing the progression of myopia (near-sightedness) in children.
- Trial name
- NCT01729208
- Testing
- Dual Focus Soft Contact Lens, Single Vision Soft Contact Lens
- Where
- 4 sites in Canada, Portugal and 2 more
- Volunteers
- 144 people
- Sponsor
- CooperVision, Inc.
Myopia
Myopia Control With the Multi-segment Lens
The purpose of this study is to determine if the Multiple-Segment (MS) spectacle lens can slow myopia progression in Hong Kong schoolchildren. MS lens is also called Defocus Incorporated Multiple Segments (DIMS) spectacle lens
- Trial name
- NCT02206217
- Testing
- Multiple-Segment spectacle lens
- Where
- 2 sites in China, Hong Kong
- Volunteers
- 183 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Surgery, Myopia
Topo-guided LASIK and Photorefractive Keratectomy vs Wavefront LASIK and Photorefractive Keratectomy
This study evaluates the difference in results between eyes that have been treated wavefront optimized laser vision correction (either LASIK or Photorefractive Keratectomy) compared to eyes treated with topography-guided laser…
- Trial name
- NCT03075176
- Testing
- Wavefront optimized LASIK, Wavefront optimized Photorefractive Keratectomy, Topography-guided LASIK
- Where
- United States
- Volunteers
- 39 people
- Sponsor
- University of Utah
Pinhole
Functional and Physiological Changes Induced by Pinhole Glasses in Presbyopia
This study is aimed at presbyopic patients that do not require magnifying glass at close rage. The purpose of this study is to investigate the functional and physiological changes in eye induced by pinhole glass.
- Trial name
- NCT02722291
- Testing
- Trayner Pinhole Glasses (Trayner Glasses, Ivybridge Devon, U.K.)
- Where
- South Korea
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Chung-Ang University Hospital
Myopia, Astigmatism
Post-approval Study of New Enrolment Patients Undergoing Bilateral Treatment With the VisuMax SMILE Procedure
The objective of the post-approval study (PAS) is to assess patient experience of visual symptoms 6 months after bilateral treatment with the VisuMax SMILE procedure as measured by a patient questionnaire.
- Trial name
- NCT05740293
- Testing
- VisuMax SMILE procedure for the reduction or elimination of myopia with astigmatism
- Where
- 7 sites in United States
- Volunteers
- 186 people, healthy volunteers welcome
- Sponsor
- Carl Zeiss Meditec, Inc.
Astigmatism
Quantification of the Visual Benefits of Soft Toric Contact Lenses Compared to Soft Spherical Contact Lenses
The aim of this work is to undertake a range of vision-related measures with soft toric contact lenses soft spherical contact lenses and spectacle lens correction across a range of levels of astigmatism.
- Trial name
- NCT04613882
- Testing
- Soft Toric Custom Made Contact lens, Soft Spherical Contact Lenses, Spectacle Correction
- Where
- United Kingdom
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Refractive Error, Presbyopia
Clinical Evaluation of DAILIES TOTAL 1® Multifocal Compared to 1-Day Acuvue® Moist® Multifocal in a Japanese Population
The purpose of this clinical study is to evaluate DAILIES TOTAL1® Multifocal (DT1MF) contact lenses compared to 1-DAY ACUVUE® Moist® Multifocal (AMMF) contact lenses for investigator-graded lens centration in a Japanese…
- Trial name
- NCT03341923
- Testing
- Delefilcon A multifocal contact lenses, Etafilcon A multifocal contact lenses
- Where
- 4 sites in Japan
- Volunteers
- 151 people, healthy volunteers welcome
- Sponsor
- Alcon Research
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
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
Presbyopia
A Study to Assess Safety and Efficacy in Participants Age 40 to 55 With Presbyopia (Old Eye) Who Receive AGN-190584 in Both Eyes Twice Daily
Currently available treatments for presbyopia (old eye) include nonsurgical options (spectacles or contact lenses) and surgical options, however, each has its own risks and limitations.
- Trial name
- Virgo (NCT04983589)
- Testing
- Pilocarpine HCl, Vehicle
- Where
- 23 sites in United States
- Volunteers
- 230 people
- Sponsor
- Allergan
Myopia, Myopia; Refractive Error
Efficacy and Visual Quality of Orthokeratology Lenses With Different Designs
Orthokeratology (ortho-k) lens is very effective in slowing down axial elongation in myopic children by 30% to 63% when compared to children wearing single-vision spectacles or contact lenses.
- Trial name
- NCT06825585
- Testing
- Orthokeratology with 5.0mm back optical zone diameter, Orthokeratology with a 6.2 mm back optical zone diameter
- Where
- China
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Xiaoyan Yang
Presbyopia
Clinical Outcome of Extended-depth-of-focus Trifocal Intraocualr Lens (Triumf) Implantation
Clinical outcome of extended-depth-of-focus trifocal intraocualr lens (Triumf) implantation
- Trial name
- NCT04392024
- Testing
- Triumf
- Where
- South Korea
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- Samsung Medical Center
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
Myopia
Assessing the Impact of Streetscape Exposure on Children's Perception
The primary objective is to determine how streetscape exposure influences children's visual perception and psychological perception.
- Trial name
- NCT07761949
- Testing
- Virtual simulation of street visual environment exposure
- Where
- China
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Cataract, Corneal Astigmatism
Comparison of Toric IOL Implantation and Opposite Clear Corneal Incision During Cataract Surgery to Correct Corneal Astigmatism
With increasing demands of patients concerning refractive outcome after cataract surgery, toric intraocular lenses (IOLs) that correct corneal astigmatism have been introduced more widely to cataract surgery.
- Trial name
- NCT01763151
- Testing
- toric IOL, IOL combined with opposite clear corneal incision (OCCI)
- Where
- Austria
- Volunteers
- 55 people
- Sponsor
- Vienna Institute for Research in Ocular Surgery
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