Clinical trials: Error, Refractive
Astigmatism
Toric Contact Lens Digital Performance and Comfort Study
This study seeks to quantify digital visual performance and subjective visual acceptance of toric contact lenses as compared to spherical lenses in low to moderate astigmatic patients.
- Trial name
- NCT04772560
- Testing
- Precision1 for Astigmatism, Precision1 Sphere
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Kathryn Richdale
Myopia
The Effect of +3.00ADD on Myopia Progression in Chinese Children
The purpose of this study is to evaluate the effect of +3.00ADD vs single vision spectacle on the progression of myopia in children.
- Trial name
- NCT03242226
- Testing
- two spectacles, single vision spectacles
- Where
- China
- Volunteers
- 440 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Myopia
Silicone Hydrogel Soft Contact Lens 7-Day Extended Wear Basis
The objective of this study is to evaluate the safety and effectiveness of the Bausch + Lomb samfilcon A soft (hydrophilic) contact lens, a new silicone hydrogel contact lens, compared to the Bausch + Lomb PureVision® soft…
- Trial name
- NCT02939950
- Testing
- Bausch + Lomb Samfilcon A Soft Contact Lens, Bausch + Lomb Pure Vision Soft Contact Lens
- Where
- United States
- Volunteers
- 816 people, healthy volunteers welcome
- Sponsor
- Bausch Health Americas, Inc.
Myopia
Use of the VisuMax™ Femtosecond Laser
The objective of this clinical trial is to evaluate the safety and effectiveness of the Carl Zeiss Meditec VisuMax™ Femtosecond Laser lenticule removal procedure for the reduction or elimination of myopia from ≥ -1.00 D to ≤…
- Trial name
- NCT01638390
- Testing
- Treatment with the VisuMax™ Femtosecond Laser
- Where
- 5 sites in United States
- Volunteers
- 357 people, healthy volunteers welcome
- Sponsor
- Carl Zeiss Meditec, Inc.
Presbyopia
LaserACE® Procedure Restore Visual Function and Range of Accommodation LaserACE® Procedure
A new minimally invasive procedure for treating presbyopia is being evaluated to determine if there is improvement in near and intermediate vision after treatment.
- Trial name
- NCT01491360
- Testing
- LaserACE(R)
- Where
- Taiwan
- Volunteers
- 8 people
- Sponsor
- ACE Vision Group, Inc.
Myopia
Effect of Axial Length of the Globe on Retinal Nerve Fibre Thickness
the goal of this obsrevational study is to learn about retinal nerve fibres and if their numbers changed with axial length of the globe or not.
- Trial name
- NCT05716776
- Testing
- Optical coherence tomography (OCT)
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Sohag University
High Myopia, Refractive Errors
Repeated Low-Level Red-Light Therapy for Shortening Axial Length
The purpose of this clinical trial is to confirm the incidence and magnitude of axial length shortening after RLRL therapy in Chinese high myopia children and teenagers.
- Conditions
- High Myopia, Refractive Errors, Eye Diseases
- Trial name
- NCT05550740
- Testing
- RLRL
- Where
- China
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Shanghai Eye Disease Prevention and Treatment Center
Cataract, Corneal Astigmatism
Evaluation of the Rotational Stability of the Tecnis Toric II IOL
This is a prospective, multicenter, single-arm, open-label clinical study of the commercially available TECNIS Toric II IOL. The study will be conducted in up to 192 subjects needing unilateral or bilateral cataract surgery in up…
- Trial name
- STEELE (NCT04327518)
- Testing
- TECNIS® Toric II
- Where
- 7 sites in United States
- Volunteers
- 125 people
- Sponsor
- Johnson & Johnson Surgical Vision, 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
Cataract, Lens Opacities
PMCF Study on Monofocal Toric IOL (PODEYE TORIC) in Europe (PHY2104)
This is a multicentric, prospective, open-label PMCF study whereby patients undergoing routine cataract surgery will have mono- or bilateral implantation of hydrophobic acrylic monofocal toric intraocular lens PODEYE TORIC (study…
- Conditions
- Cataract, Lens Opacities, Astigmatism
- Trial name
- PHY2104 (NCT04987216)
- Testing
- IOL implantation experimental
- Where
- 4 sites in Germany
- Volunteers
- 28 people
- Sponsor
- Beaver-Visitec International, Inc.
Refractive Errors
Safety and Effectiveness of the Qualis Contact Lens
Three-month, open-label, bilateral, parallel group, randomized, daily wear contact lens dispensing study.
- Trial name
- NCT04295499
- Testing
- soft (hydrophilic) contact lens
- Where
- 3 sites in United States
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Unicon Optical Co. Ltd.
Myopia
Comparison of Clinical Performance and Subjective Preference of Three Contact Lenses
The purpose of this study is to evaluate the clinical performance and subject's preference out of three LRE (Limbal Ring Enhancing) lens types: etafilcon A (Johnson\&Johnson), methafilcon A (Interozzo), and methafilcon A…
- Trial name
- NCT03134599
- Testing
- etafilcon A, methafilcon A - Interozzo, methafilcon A - CVI (CooperVision)
- Where
- South Korea
- Volunteers
- 60 people
- Sponsor
- CooperVision, Inc.
Myopia, Astigmatism
LASIK Using Contoura With Phorcides vs. iDesign
Participants will undergo LASIK using Contoura with Phorcides calculation on one eye and LASIK using iDesign calculation on the contralateral eye to correct myopia.
- Trial name
- NCT07128316
- Testing
- Contoura Topolyzer with Phorcides, iDesign
- Where
- United States
- Volunteers
- 63 people
- Sponsor
- 59th Medical Wing
Myopia
Part-time Versus Full-time Spectacles for Myopia Control (ParMA Study)
The purpose is to assess the effect of part-time compared to full-time spectacle use in juvenile myopia control.
- Trial name
- NCT04854447
- Testing
- Single-Vision Spectacles
- Where
- Greece
- Volunteers
- 30 people
- Sponsor
- Aristotle University Of Thessaloniki
Blindness, Cataract
Prevalence of Blindness, Visual Impairment in Chao Nan Area, China
This study will provide a profile of blindness/visual impairment, avoidable blindness and cataract surgery service in Chaonan, mainland China.
- Conditions
- Blindness, Cataract, Visual Impairment, Refractive Errors
- Trial name
- NCT04143334
- Testing
- Conventional survey
- Volunteers
- 3,700 people
- Sponsor
- Chinese University of Hong Kong
Presbyopia
A Prospective Study To Evaluate The Raindrop Near Vision Inlay In Presybopic or Pseudophakic Patients Treated With Mitomycin C Following Femtosecond Flap Creation.
The clinical objective of this study is to evaluate the Raindrop® Near Vision Inlay for the improvement of near vision in presbyopic or pseudophakic patients treated with low dose Mitomycin C immediately following femtosecond…
- Trial name
- NCT03101501
- Testing
- Mitomycin c, Raindrop Near Vision Inlay
- Where
- 3 sites in United States
- Volunteers
- 9 people
- Sponsor
- Key-Whitman Eye Center
Children, Hyperopia
Efficacy of S.T.O.P®KIT in Retarding Axial Length Growth in Children With Low Hyperopia
This is a multicenter, parallel-group, open-label, randomized controlled, superiority interventional clinical study initiated by investigators from Shanghai General Hospital (Study Protocol No.: IT-CRU-FAMB-001, Version V1.1…
- Trial name
- NCT07401511
- Testing
- Attaching different phase Dynamic Spatiotemporal Optical Films (S.T.O.P® KIT) when wearing spectacle frames
- Where
- 3 sites in China
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine
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
Exploratory Study on the Effectiveness of Myopia Control Lenses in Slowing Myopia Progression in Young Children
This study will be a mono-center, single-arm, unmasked study evaluating the effectiveness of test lens in slowing myopia progression in children aged 6 to 8 years.
- Trial name
- NCT06857864
- Testing
- Test myopia control lenses (BSL)
- Where
- Singapore
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Essilor International
Myopia, Astigmatism
Clinical Investigation of the Cheetah System For The Correction of Myopia With and Without Astigmatism
This study will be a 3-phase, 12-months, prospective,single arm, multicenter, open-label, non-comparative, clinical investigation conducted at up to 7 sites.
- Trial name
- NCT04200898
- Testing
- Cheetah System
- Where
- 6 sites in Croatia, India and 2 more
- Volunteers
- 286 people
- Sponsor
- Johnson & Johnson Surgical Vision, Inc.
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