Clinical trials: Astigmatism,
Astigmatism
Evaluating and Improving Functional Driving Vision of Patients With Astigmatism
Small amounts of astigmatism are often uncorrected in contact lens wearers. The effect with respect to driving is unknown, but it could threaten safe operation of a motor vehicle, especially under conditions such as nighttime…
- Trial name
- NCT02624791
- Testing
- 1-DAY ACUVUE® MOIST contact lenses, 1-DAY ACUVUE® MOIST for ASTIGMATISM contact lenses, No contact lenses
- Where
- United States
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- University of Virginia
Astigmatism, Presbyopia
Comparing Biofinity Toric Multifocal to Ultra Multifocal for Astigmatism
The objective of the study was to compare the handling and performance of Biofinity Toric Multifocal to Ultra Multifocal for Astigmatism.
- Trial name
- NCT04404725
- Testing
- comfilcon A, Samfilcon A
- Where
- 7 sites in United States, Canada
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Myopia, Astigmatism
Subjective Comfort With Multipurpose Care Solutions in Soft Contact Lens Wearers
The purpose of this study was to assess the comfort of OPTI-FREE RepleniSH in soft contact lens wearers.
- Conditions
- Myopia, Astigmatism, Refractive Error
- Trial name
- NCT01211535
- Testing
- OPTI-FREE RepleniSH multipurpose solution, ReNu Biotrue multipurpose solution, Silicone hydrogel contact lenses
- Where
- United States
- Volunteers
- 104 people
- Sponsor
- Alcon Research
Corneal Astigmatism
Retrospective Chart Review of enVista Toric 0.9D Intraocular Lenses
The primary objective of this study is to evaluate the performance of the enVista Toric 0.9D vs non-Toric IOL.
- Trial name
- NCT05075746
- Testing
- enVista Toric, enVista non-Toric (spherical)
- Where
- 3 sites in Canada
- Volunteers
- 302 people
- Sponsor
- Bausch & Lomb Incorporated
Astigmatism Bilateral
Comparison of Two Daily Disposable Soft Contact Lenses
The aim of this study was to investigate the short-term clinical performance and subjective acceptance of the two study lenses.
- Trial name
- NCT03779503
- Testing
- midafilcon A, somofilcon A
- Where
- United States
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Bilateral Cataract
ACRYSOF® Toric NATURAL T9 Intraocular Lens (IOL)
The purpose of this study is to describe rates of spatial distortions related to intraocular lens (IOL) misalignment for ACRYSOF® Single-Piece Toric NATURAL IOL Model SN60T9 when implanted bilaterally into the capsular bag…
- Trial name
- NCT00967473
- Testing
- ACRYSOF® Single-Piece NATURAL Toric IOL Model SN60T9 and Model SN60T8.
- Where
- United States
- Volunteers
- 15 people
- Sponsor
- Alcon Research
Myopia, Hyperopia
Bilateral Dispensing Study of Fanfilcon A Toric Versus Enfilcon A Toric Lenses
Bilateral dispensing clinical trial of fanfilcon A toric lens verses enfilcon A toric lens over two weeks.
- Conditions
- Myopia, Hyperopia, Astigmatism
- Trial name
- NCT02423109
- Testing
- fanfilcon A, enfilcon A
- Where
- 2 sites in United States, Canada
- Volunteers
- 44 people
- Sponsor
- CooperVision, Inc.
Ametropia, Myopia
Clinical Performance Evaluation of Two Frequent Replacement Silicone Hydrogel Toric Contact Lenses
The primary objective of this study is to evaluate the axis orientation of LID226397 toric contact lenses.
- Conditions
- Ametropia, Myopia, Hyperopia, Astigmatism
- Trial name
- NCT05959200
- Testing
- Serafilcon A toric contact lenses, Senofilcon A toric contact lenses, CLEAR CARE
- Where
- 7 sites in United States
- Volunteers
- 92 people
- Sponsor
- Alcon Research
Astigmatism
Clinical Evaluation of Two Toric Contact Lenses in Current Non-toric Lens Users
The purpose of this study is to evaluate the clinical performance, defined as successful fit, of two toric contact lenses (one daily disposable and the other daily wear reusable contact lens to correct astigmatism) in current…
- Trial name
- NCT01180998
- Testing
- Senofilcon A Toric (AOfA), Etafilcon A Toric (1DAMfA)
- Where
- 18 sites in United Kingdom
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Aphakia, Corneal Astigmatism
Clinical Investigation of the Visual Outcomes and Safety of a Trifocal Toric IOL in an Asian Population
The purpose of this study is to evaluate the clinical performance of the ACRYSOF® IQ PanOptix® Toric Trifocal intraocular lens (IOL) when implanted in the eye following cataract removal in an Asian population.
- Trial name
- NCT04528069
- Testing
- ACRYSOF® IQ PanOptix® Toric Trifocal IOL, Cataract surgery
- Where
- 4 sites in Australia
- Volunteers
- 58 people
- Sponsor
- Alcon Research
Astigmatism
Clinical Comfort Evaluation of Two Marketed Spherical Contact Lenses
The purpose of this study was to investigate the overall clinical comfort performance of enfilcon A (test) lens and senofilcon A (control) lens over 15-minutes of lens wear.
- Trial name
- NCT02356692
- Testing
- enfilcon A, senofilcon A
- Where
- 3 sites in United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Refractive Error
On-Eye Evaluation of Contact Lens Rotation Marks
The purpose of this study was to select the size of the molded rotation mark for a new toric contact lens by comparing the visibility of various molded rotation marks.
- Trial name
- NCT02055404
- Testing
- Delefilcon A spherical contact lens with molded marks, Etafilcon A toric contact lens
- Volunteers
- 3 people, healthy volunteers welcome
- Sponsor
- Alcon Research
Astigmatism
Comparison of Cross-cylinder and Conventional Photorefractive Keratectomy(PRK) in Correcting Medium-high Astigmatism
The purpose of this study is to determine whether cross-cylinder approach is more effective than routine method in laser correction of astigmatism.
- Trial name
- PRK (NCT00663923)
- Testing
- photorefractive keratectomy (PRK)
- Where
- Iran
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Tabriz University
Cataract, Corneal Astigmatism
Clinical Trial of a Hydrophilic EMV Toric Lens RAO210T in the Correction of Aphakia and Corneal Astigmatism
The objectives of the clinical investigation are to determine the safety and performance of the RayOne EMV Toric (Model RAO210T) following unilateral implantation and approximately 6 months (120 to 180 days) of post-operative…
- Trial name
- NCT05985304
- Testing
- RayOne EMV Toric IOL, RayOne Monofocal IOL, Cataract Surgery
- Where
- 9 sites in United States
- Volunteers
- 274 people
- Sponsor
- Rayner Intraocular Lenses Limited
Myopia, Astigmatism
Prospective Study of an Investigational Toric Soft Contact Lens
The purpose of this study was to demonstrate substantial equivalence of an investigational toric soft contact lens to the commercially available Focus® DAILIES® Toric soft contact lens when worn in a daily wear, daily disposable…
- Conditions
- Myopia, Astigmatism, Refractive Error
- Trial name
- NCT01461811
- Testing
- Nelfilcon A toric contact lenses (with comfort additives), Nelfilcon A toric contact lenses
- Volunteers
- 154 people
- Sponsor
- CIBA VISION
Cataract, Corneal Astigmatism
Post-market Study to Obtain Surgeon Feedback on Clinical Outcome in Eyes Implanted With TECNIS Toric II IOL
This is a multicenter, prospective, single-arm, open-label, clinical study of the commercially available TECNIS Toric II, Model ZCU IOL.
- Trial name
- NCT04210232
- Testing
- TECNIS® TORIC II Intraocular Lens (IOL)
- Where
- 12 sites in United States
- Volunteers
- 54 people
- Sponsor
- Johnson & Johnson Surgical Vision, Inc.
Cataract, Astigmatism
Conventional Surgery vs. Verion/VerifEye
Nowadays cataract patient's expectations are closer to those of refractive surgery patients. Patients want to be spectacle independent.
- Trial name
- NCT02513745
- Testing
- Conventional, Refractive Cataract Suite (Verion + ORA)
- Where
- United States
- Volunteers
- 84 people
- Sponsor
- Carolina Eyecare Physicians, LLC
Astigmatism
Clinical Performance of Habitual Wearers of Avaira Toric When Refitted With Clariti Toric Lenses
The aim of this dispensing study is to evaluate the clinical performance of existing wearers of Avaira toric lenses following a refit with Clariti toric over 1 month of daily wear.
- Trial name
- NCT02248766
- Testing
- somofilcon A
- Where
- Spain
- Volunteers
- 30 people
- Sponsor
- CooperVision, Inc.
Myopic Astigmatism
STAAR Visian Toric ICL Post-Approval Study
The objective of this study is to evaluate the long term (i.e. 24 months) clinical performance of the Visian® Toric Implantable Collamer® Lens (ICL).
- Trial name
- TICL-PAS (NCT04516772)
- Testing
- Visian TICL
- Where
- 8 sites in United States
- Volunteers
- 125 people
- Sponsor
- Staar Surgical Company
Astigmatism
Performance of Fanfilcon A Toric Lenses After at Least One Month Wearing Enfilcon A Toric Lenses
This is a prospective, multi-center, subject-masked, bilateral, daily wear, two-month dispensing study
- Trial name
- NCT02921412
- Testing
- fanfilcon A
- Where
- 4 sites in United States
- Volunteers
- 37 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.