Clinical trials: Astigmatism,
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.
Cataract, Astigmatism
Patient Perception of Visual Distortions
The purpose of this study is to evaluate visual distortions reported by pseudophakic patients.
- Trial name
- NCT02203747
- Testing
- Administration of patient self-assessment
- Where
- United States
- Volunteers
- 79 people, healthy volunteers welcome
- Sponsor
- Abbott Medical Optics
Astigmatism
A Clinical Comparison of 2 Multifocal Toric XR (Extended Range) Contact Lenses
This study aims to compare the clinical performance and subjective acceptance of the comfilcon A and the omafilcon B soft contact lenses.
- Trial name
- NCT03006458
- Testing
- comfilcon A, omafilcon B
- Where
- United Kingdom
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
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
Refractive Error, Myopia
Comparative Evaluation of Contact Lens Centering of DAILIES® AquaComfort Plus® Versus 1-DAY ACUVUE® MOIST® in Japan
The purpose of this study is to evaluate lens centration and subjective impressions of DAILIES® AquaComfort Plus® (DACP) lenses compared to 1-DAY ACUVUE® MOIST® (1DAM) lenses in ball sports players.
- Conditions
- Refractive Error, Myopia, Myopic Astigmatism
- Trial name
- NCT02103309
- Testing
- Nelfilcon A contact lenses, Etafilcon A contact lenses
- Volunteers
- 42 people
- Sponsor
- Alcon Research
Astigmatism
Comparison of Comfilcon A Toric Contact Lenses and Samfilcon A Toric Contact Lenses
The objective of this study is to evaluate the subjective acceptance of comfilcon A toric contact lens, compared to samfilcon A toric lens.
- Trial name
- NCT03519932
- Testing
- comfilcon A toric lens, samfilcon A toric lens
- Where
- Canada
- Volunteers
- 49 people
- Sponsor
- CooperVision, Inc.
Astigmatism
Clinical Evaluation of Two Toric Contact Lenses
The study objective was to compare short-term clinical performance data of two toric contact lenses.
- Trial name
- NCT05688657
- Testing
- Lens A, Lens B
- Where
- Mexico
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Cataracts
AcrySof® IQ ReSTOR® +3.0 D Multifocal Toric Intraocular Lens (IOL) Clinical Study in Japan
The purpose of this study is to evaluate safety and effectiveness of AcrySof® IQ ReSTOR® +3.0 D Multifocal Toric IOL Models SND1T3, SND1T4, SND1T5, and SND1T6 when implanted to replace the natural lens in Japanese cataract…
- Trial name
- NCT01323777
- Testing
- AcrySof® IQ ReSTOR® +3.0 D Multifocal Toric IOL
- Where
- 2 sites in Japan
- Volunteers
- 65 people
- Sponsor
- Alcon Research
Myopia, Myopic Astigmatism
Post-Market Evaluation of the EVO ICL
The objective of this study is to assess the rate of early intraocular pressure (IOP) increases following implantation of EVO/EVO+ Implantable Collamer Lens (ICL).
- Trial name
- NCT05538754
- Testing
- EVO ICL
- Where
- 8 sites in United States
- Volunteers
- 205 people
- Sponsor
- Staar Surgical Company
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.
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
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.
Astigmatism
Visual Performance With Clareon® Vivity® Intraocular Lenses (IOLs)
The purpose of this study is to generate clinical data to quantify the impact of residual astigmatism on the overall visual performance during distance, intermediate, and near viewing in patients implanted with Clareon Vivity…
- Trial name
- NCT06784063
- Testing
- Clareon Vivity Extended Vision IOL
- Where
- 3 sites in United States
- Volunteers
- 40 people
- Sponsor
- Alcon Research
Cataract Bilateral, Astigmatism Bilateral
Symfony Toric Intraocular Lens Visual Outcomes
In July 2016, the FDA approved an extended depth of focus (EDOF) IOL (Tecnis Symfony, Abbott Medical Optics) helping to improve the sharpness of vision at near, intermediate and far distances reducing the need of glasses after…
- Trial name
- NCT03082599
- Testing
- Presbyopia and astigmatism correcting intraocular lens
- Where
- 4 sites in United States
- Volunteers
- 120 people
- Sponsor
- Carolina Eyecare Physicians, LLC
Myopia, Astigmatism
New Treatment Algorithm to Reduce Spherical Aberration After LASIK Correction for Myopia
The purpose of this clinical trial is to demonstrate that treatments generated by an investigational algorithm reduces spherical aberration compared to currently available iDesign treatments.
- Trial name
- NCT01988415
- Testing
- VSS-Rx1 OPM vs Commercial iDesign Treatment
- Where
- Colombia
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Abbott Medical Optics
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
Myopia, Astigmatism
Prospective Study of Lens Performance of a Monthly Replacement Lens at Two Weeks and Four Weeks
The purpose of this study is to compare the overall performance of a monthly replacement contact lens when worn for one month and when worn for two weeks.
- Conditions
- Myopia, Astigmatism, Presbyopia
- Trial name
- NCT01293240
- Testing
- lotrafilcon B contact lens
- Volunteers
- 117 people
- Sponsor
- CIBA VISION
Myopia
WaveLight® EX500 Excimer Laser System for the Correction of Myopia Using InnovEyes™ in Conjunction With InnovEyes™ Sightmap
The purpose of this study is to evaluate the safety and effectiveness of the WaveLight EX500 excimer laser system for the correction of myopia with and without astigmatism using InnovEyes in conjunction with InnovEyes sightmap.
- Trial name
- NCT04219891
- Testing
- WaveLight EX500 excimer laser system with InnovEyes sightmap, LASIK, InnovEyes sightmap
- Where
- 9 sites in United States
- Volunteers
- 272 people
- Sponsor
- Alcon Research
Astigmatism Bilateral
A Bilateral Dispensing Comparison of Comfilcon A Over Senofilcon C Contact Lenses
The aim of this study is to evaluate the subjective acceptance of Comfilcon A contact lenses when worn on a daily wear modality over one month.
- Trial name
- NCT03684928
- Testing
- Comfilcon A (test), Senofilcon C (control)
- Where
- Canada
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Cataract Extraction, Corneal Astigmatism
Assessment of Visual Performance in Patients With Low Levels of Astigmatism
To assess visual performance in patients with low levels (0.5-0.75 Diopters) of corneal astigmatism.
- Trial name
- NCT00842231
- Testing
- Visual performance measures
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Alcon Research