Clinical trials: Astigmatism, open to volunteers
Myopia, Astigmatism
Evaluation of Orthokeratology Lenses With a 5MM Optic Zone Diameter
To evaluate the clinical performance and user-reported experience of Paragon CRT contact lenses with a 5mm Optic Zone Diameter (OZD)
- Trial name
- NCT07751172
- Testing
- Lens A (paflufocon D)
- Where
- 3 sites in United States, Spain
- Volunteers
- 70 people
- Sponsor
- CooperVision International Limited (CVIL)
Astigmatism, Myopia
Evaluation of Two Monthly Silicone Hydrogel Multifocal Toric in Soft Contact Lens Wearers
To compare the performance of two leading soft multifocal Toric contact lenses.
- Trial name
- NCT07829419
- Testing
- Lens A ( comfilcon A), Lens B ( lehfilcon A)
- Where
- 3 sites in United States
- Volunteers
- 60 people
- Sponsor
- CooperVision International Limited (CVIL)
Astigmatism, Myopia
Effect of a Myopia Control Lens on the Astigmatism in Children
The goal of this clinical trial is to investigate over a one-year period the effect of myopia control spectacle lenses on astigmatism in children aged 6 to 13 years with myopia and astigmatism.
- Trial name
- MAC (NCT07810725)
- Testing
- Lenslet-based myopia control spectacle lens
- Volunteers
- 15 people
- Sponsor
- Essilor International
Myopia, Astigmatism
Study of a Phakic Implantable Collamer Lens (ICL)
A prospective, open-labeled, single-site study of a phakic implantable collamer lens (ICL) for the correction/reduction of myopia with or without astigmatism.
- Trial name
- NCT07790965
- Testing
- Phakic Implantable Collamer Lens (ICL)
- Volunteers
- 10 people
- Sponsor
- Staar Surgical Company
Myopia, Astigmatism
Study of an Implantable Collamer Lens (ICL)
A prospective, open-labeled, single-site study of an implantable collamer lens (ICL) for the correction/reduction of myopia with or without astigmatism.
- Trial name
- NCT07791381
- Testing
- Implantable collamer lens (ICL)
- Volunteers
- 10 people
- Sponsor
- Staar Surgical Company
Aphakia, Astigmatism
Clareon TruPlus Study
The purpose of this research study is to generate safety and performance data for Clareon TruPlus Monofocal Intraocular Lenses (IOLs).
- Trial name
- NCT07502456
- Testing
- Clareon TruPlus Monofocal Non-Toric IOL, Clareon TruPlus Monofocal Toric IOL, Phacoemulsification
- Where
- 5 sites in United States
- Volunteers
- 122 people
- Sponsor
- Alcon Research
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 Correction, Astigmatism
A Planned Study at Multiple Sites is Being Done to Compare the Results of Two Types of Trifocal Toric Intraocular Lenses Used in Cataract Surgery
To evaluate the clinical outcomes and patient satisfaction of two commercially available trifocal toric intraocular lenses Primary Objective: To compare the distance-corrected intermediate visual acuity between the two trifocal…
- Conditions
- Presbyopia Correction, Astigmatism, Cataract
- Trial name
- NCT07232615
- Testing
- Optiflex TRIO Intraocular Lens, AcrySof® IQ PanOptix®
- Where
- 6 sites in Germany, India and 1 more
- Volunteers
- 138 people
- Sponsor
- Biotech Healthcare Holding Gmbh
Astigmatism, Presbyopia
North American Comfilcon A Clinical Study
The main objective of this study is to demonstrate acceptable safety and effectiveness (performance) of comfilcon A Sphere, Toric, Multifocal, Toric Multifocal and Energys lenses, when used in the general population.
- Conditions
- Astigmatism, Presbyopia, Ametropia
- Trial name
- NCT06902584
- Testing
- comfilcon A Sphere lens, comfilcon A Toric lens, comfilcon A Multifocal lens
- Where
- 4 sites in United States
- Volunteers
- 182 people
- Sponsor
- CooperVision International Limited (CVIL)
Myopia, Myopic Astigmatism
A Clinical Trial Assessing the Safety and Effectiveness of Orthokeratology Lenses in Patients With Myopia and Myopic Astigmatism
This is a prospective, multi-centre, single-arm clinical trial to evaluate the effectiveness and safety of MCOK-01 lenses in patients with myopia and myopic astigmatism who need dioptric correction.
- Trial name
- SEMOA (NCT07047924)
- Testing
- MCOK-01
- Where
- 4 sites in Australia
- Volunteers
- 220 people
- Sponsor
- Menicon Co., Ltd.
Refractive Assessment, Refractive Disorders
Algorithm-assisted Subjective Refraction Program Dedicated to Children
Current refraction assessment in children is dependent on the Eye Care Specialist and lacks standardization. Essilor has developed new algorithm assisted subjective refraction software dedicated to children of 6-12 years old and…
- Conditions
- Refractive Assessment, Refractive Disorders, Hyperopia and Myopia, Astigmatism
- Trial name
- NCT07046065
- Testing
- Non-cycloplegic Objective refraction, Non-cycloplegic conventional subjective refraction, Non-cycloplegic subjective refraction (Kids refraction software vA with Vision-R™)
- Where
- Portugal
- Volunteers
- 166 people, healthy volunteers welcome
- Sponsor
- Essilor International
Astigmatism
Observational Study - TA- 2025-1
This multi-centric, prospective observational study collects biometric datasets as well as associated video recordings of the surgical procedure.
- Trial name
- TA OS 2025-1 (NCT07007897)
- Testing
- Optical Biometry, Cataract Surgery
- Where
- 2 sites in United States
- Volunteers
- 100 people
- Sponsor
- Haag-Streit AG
Ametropia, Myopia; Refractive Error
The Objective of This Study is to Evaluate the Perfomance of a Photorefraction Device for Screening Ametropia in Children. Eligible Participants Will Undergo Multiple Refractive Error Measurements, Visual Acuity and Strabismus Assessments During a Single Evaluation Visit.
The goal of this clinical trial is to evaluate the performance of a photorefraction screener in terms of sensibility, sensitivity and accuracy on children aged 3 to 8 y.o.
- Conditions
- Ametropia, Myopia; Refractive Error, Myopia; Astigmatism
- Trial name
- NCT06882408
- Testing
- Photorefraction device under investigation, Comparator device, Tabletop auto-refractometer, Comparator device, portable photorefraction device
- Where
- 2 sites in France
- Volunteers
- 315 people, healthy volunteers welcome
- Sponsor
- Essilor International
Myopia, Moderate, Myopic Astigmatism
A Prospective, Randomized Clinical Study of Two Phakic Toric Implantable Lenses
Primary Objective: To compare the efficacy and the residual refractive error of EYECRYLTM Phakic toric versus Visian® Toric ICL in moderate to high myopic patient with co-existing astigmatism.
- Conditions
- Myopia, Moderate, Myopic Astigmatism, Myopia, Degenerative
- Trial name
- NCT06839898
- Testing
- EYECRYLTM Phakic Toric Intraocular Lens Treatment Arm, Visian® Toric ICL Treatment Arm
- Where
- 4 sites in Germany, India
- Volunteers
- 172 people
- Sponsor
- Biotech Healthcare Holding Gmbh
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.