Clinical trials: Astigmatism
Astigmatism
Performance of Dailies Total1® Contact Lenses for Astigmatism in Symptomatic Habitual Reusable Toric Lens Wearers
To subjectively evaluate Dailies Total1® contact lenses for astigmatism (DT1fA) performance compared to other common weekly/monthly contact lenses in symptomatic patients.
- Trial name
- NCT05498649
- Testing
- DT1fA
- Where
- United States
- Volunteers
- 86 people
- Sponsor
- Keith Wan
Refractive Errors, Presbyopia
Assessing the Clinical Performance of Two Frequent Replacement Silicone Hydrogel Multifocal Toric Contact Lenses
The purpose of this clinical trial is to assess on-eye performance and overall fit of an investigational multifocal toric contact lens to aid in confirmation of the study lens design.
- Conditions
- Refractive Errors, Presbyopia, Astigmatism
- Trial name
- NCT05886907
- Testing
- Lehfilcon A multifocal toric contact lenses, Samfilcon A multifocal toric contact lenses, CLEAR CARE
- Where
- United States
- Volunteers
- 18 people
- Sponsor
- Alcon Research
Astigmatism
Toric Eye Strain and Stability Study
The purpose of this study is to determine the benefits of fitting low astigmats with soft toric contact lenses versus spherical contact lenses with regard to visual comfort, eyestrain, fitting efficiency, and visual performance.
- Trial name
- NCT01857102
- Testing
- etafilcon A, etafilcon A for Astigmatism
- Where
- United States
- Volunteers
- 159 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Astigmatism, Presbyopia
A Clinical Comparison of Two Multifocal Toric Soft Contact Lenses
This study aims to compare the short-term clinical performance of the two study contact lenses.
- Trial name
- NCT06438601
- Testing
- Lens A (omafilcon A), Lens B (comfilcon A)
- Where
- United Kingdom
- Volunteers
- 36 people
- Sponsor
- CooperVision, Inc.
Cataracts
Low Cylinder Toric
Study evaluates the visual outcomes and patient satisfaction after implantation of a toric intraocular lens (IOL).
- Trial name
- NCT00732030
- Testing
- Toric IOL (SN60T3)
- Where
- United States
- Volunteers
- 26 people
- Sponsor
- Alcon Research
Astigmatism Bilateral
Evaluation of Wear Experience With Daily Disposable and Monthly Replacement Toric Contact Lenses
Comparison of wear experience with daily disposable and monthly replacement soft contact lenses in contact lens wearers who have astigmatism.
- Trial name
- NCT05580575
- Testing
- Daily disposable toric soft contact lens, Monthly replacement toric daily wear soft contact lens
- Where
- 3 sites in United States
- Volunteers
- 67 people, healthy volunteers welcome
- Sponsor
- Ohio State University
Myopia, Astigmatism
A Comparison of LASIK Outcomes Using Two Femtosecond Lasers
Comparing LASIK outcomes using two femtosecond lasers
- Trial name
- NCT03063164
- Testing
- Intralase IFS150, Visumax
- Where
- United States
- Volunteers
- 7 people, healthy volunteers welcome
- Sponsor
- Edward E. Manche
Myopia, Astigmatism
Safety and Efficacy Evaluation of a New Contact Lens Disinfecting Solution in Gas Permeable Contact Lens Wearers
The purpose of this study is demonstrate substantial equivalence of an investigational contact lens disinfecting solution to a commercially available contact lens solution in gas permeable lens wearers.
- Conditions
- Myopia, Astigmatism, Hyperopia, Refractive Error
- Trial name
- NCT01912781
- Testing
- FID 120947A contact lens disinfecting solution, Boston Simplus multi-action solution, Gas permeable contact lenses
- Volunteers
- 112 people
- Sponsor
- Alcon Research
Astigmatism
Insertion Clinical Study to Evaluate the Orientation Characteristics of Multiple Kalifilcon A Daily Disposable Toric LD213001 Contact Lenses
The objective is to evaluate the fit characteristics (primary gaze orientation, rotational recovery, and movement) of kalifilcon A daily disposable toric lenses as compared to commercially available Ultra for Astigmatism lenses.
- Trial name
- NCT05129124
- Testing
- kalifilcon A Daily Disposable Toric LD213001 Contact Lenses, Commercially available Ultra for Astigmatism Contact Lenses
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- Bausch & Lomb Incorporated
Cataract
Postmarket Study of an Intraocular Lens Power Selection System
The purpose of the study was to evaluate the visual acuity outcomes when using the Optiwave Refractive Analysis (ORA) with VerifEye+ and Barrett Toric Calculator for calculating intraocular lens (IOL) power and axis in subjects…
- Trial name
- NCT03579433
- Testing
- ORA with VerifEye+, Alcon Barrett Toric Calculator, Acrysof® IQ Toric IOL
- Where
- 9 sites in United States
- Volunteers
- 124 people
- Sponsor
- Alcon Research
Visual Acuity
Evaluation of ACUVUE OASYS® 1-Day for Astigmatism Lenses Produced on a New Manufacturing Line
This is a bilateral, dispensing, randomized, controlled, double-masked, 2×2 cross-over study to evaluate the clinical performance of ACUVUE OASYS® 1-Day for Astigmatism contact lenses produced on a recently qualified…
- Trial name
- NCT04794270
- Testing
- ACUVUE OASYS® 1-Day for Astigmatism - TAM 24, ACUVUE OASYS® 1-Day for Astigmatism
- Where
- 5 sites in United States
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Lenses, Intraocular
Tolerance to Residual Astigmatism in Eyes With Vivity®
Low amounts of postoperative residual astigmatism may worsen the visual performance of patients implanted with presbyopia- correcting intraocular lenses (IOLs).
- Trial name
- NCT05392998
- Testing
- Cataract surgery with Vivity intraocular lens implantation
- Where
- Spain
- Volunteers
- 30 people
- Sponsor
- Clínica Rementería
Astigmatism
Kalifilcon A Toric Compared to Commercially Available Lenses
Approximately thirty contact lens adapted subjects will be enrolled in this feasibility, bilateral, randomized, double masked (subject and investigator masked), repeated measures insertion study.
- Trial name
- NCT06098937
- Testing
- Kalifilcon Toric Lens, Total1 for Astigmatism, Precision1 for Astigmatism
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Bausch & Lomb Incorporated
Astigmatism
Performance of Two Toric Silicone Hydrogel Contact Lenses
Prospective study to evaluate the clinical performance of fanfilcon A toric contact lens and senofilcon A toric contact lens after two weeks of wear.
- Trial name
- NCT03578926
- Testing
- fanfilcon A toric lens, senofilcon A toric lens
- Where
- Mexico
- Volunteers
- 45 people
- Sponsor
- CooperVision, Inc.
Myopia, Astigmatism
On-Eye Evaluation of Contact Lens Axis Location
The purpose of this study was to evaluate the axis location of toric contact lenses after 3 minutes of wear. During this 1-visit study, each participant wore 3 pairs of study lenses of various design iterations (2-87-1, 2-87-2…
- Conditions
- Myopia, Astigmatism, Refractive Error
- Trial name
- NCT02100410
- Testing
- Delefilcon A toric contact lens T1, Delefilcon A toric contact lens T2, Delefilcon A toric contact lens T3
- Volunteers
- 50 people
- Sponsor
- Alcon Research
Astigmatism
A Clinical Comparison of Two Soft Toric Contact Lenses
The aim of this study is to compare the short-term clinical performance of two toric contact lenses.
- Trial name
- NCT06758089
- Testing
- Lens 1 (ocufilcon D), Lens 2 (somofilcon A)
- Where
- United Kingdom
- Volunteers
- 42 people
- Sponsor
- CooperVision International Limited (CVIL)
Presbyopia, Astigmatism
Clinical Performance Evaluation of Two Frequent Replacement Silicone Hydrogel Multifocal Toric Contact Lenses
The purpose of this study is to evaluate on-eye clinical performance of the investigational contact lenses following 30 days of wear in the intended population.
- Trial name
- NCT06461455
- Testing
- Lehfilcon A multifocal for astigmatism contact lenses, Samfilcon A multifocal for astigmatism contact lenses, CLEAR CARE® Cleaning & Disinfecting Solution
- Where
- 11 sites in United States
- Volunteers
- 95 people
- Sponsor
- Alcon Research
Aphakia, Cataract
Exploratory Study to Evaluate Uncorrected Distance Vision and Quality of Vision After Light Treatments of an Implanted RxSight Light Adjustable Lens (RXLAL) With The Light Delivery Device (LDD) in Subjects With Preoperative Corneal Astigmatism
The objective of this study is to evaluate uncorrected distance vision and quality of vision as measured by the McAlinden QoV questionnaire 3 months following the final lock-in treatment of the implanted RxSight Light Adjustable…
- Trial name
- NCT03729024
- Testing
- Light Adjustable lens (LAL) and Light Delivery Device (LDD)
- Where
- Mexico
- Volunteers
- 21 people
- Sponsor
- RxSight, Inc.
Presbyopia, Astigmatism
Clinical Evaluation of Investigational Multifocal Toric Contact Lenses
This non-dispensing study is to evaluate the clinical performance of a test multifocal toric silicone hydrogel contact lens compared to a marketed multifocal toric contact lens (control).
- Trial name
- NCT03519282
- Testing
- comfilcon A multifocal toric lens, omafilcon A Multifocal Toric Lens
- Where
- United Kingdom
- Volunteers
- 13 people
- Sponsor
- CooperVision, Inc.
Astigmatism
In-office Evaluation of Two Toric Soft Contact Lenses and a Spherical Soft Contact Lens
The purpose of this study is to determine the relative performance of a new toric soft contact lens against a toric and a spherical contact lens currently available in market, specifically with regards to the fit and visual…
- Trial name
- NCT00584727
- Testing
- senofilcon A toric contact lens, alphafilcon A toric, etafilcon A sphere
- Volunteers
- 96 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.