Clinical trials: Astigmatism
Cataract
Evaluating Refractive and Visual Outcomes With the Alcon Toric ReSTOR +2.5 and +3.0 Models
The study will evaluate visual acuity and visual function with a 'blended' ReSTOR Toric intraocular lens (IOL) implantation after cataract surgery.
- Trial name
- NCT03856944
- Testing
- ReSTOR Toric
- Where
- United States
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- Gainesville Eye Associates
Myopia, Astigmatism
Clinical Validation of Biofinity Toric MTO (Made To Order) Lenses
The study hypothesis is there is no difference in the clinical performance between the test and control lenses, in particular in lens stability, toric mislocation, comfort ratings and anterior segment ocular health findings.
- Trial name
- NCT02185105
- Testing
- comfilcon A MTO, comfilcon A
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- CooperVision, Inc.
Astigmatism
Clinical Evaluation of Two Toric Soft Contact Lenses
The aim of this study is to compare the short-term clinical performance of two toric contact lenses.
- Trial name
- NCT06490302
- Testing
- Lens A (ocufilcon D), Lens B (fanfilcon A)
- Where
- Mexico
- Volunteers
- 40 people
- Sponsor
- CooperVision, Inc.
Aphakia, Cataract
A Clinical Study to Evaluate The Safety and Effectiveness of Performing 0.50 Diopter Astigmatism Correction on the Commercially Available RxSight Light Adjustable Lens (LAL)
The primary objective of this study is to evaluate the safety and effectiveness of performing 0.50 D cylinder correction on the RxSight Light Adjustable Lens (LAL) in patients who have undergone implantation with the FDA…
- Trial name
- NCT04005586
- Testing
- Light Delivery Device (LDD)
- Where
- 2 sites in United States
- Volunteers
- 25 people
- Sponsor
- RxSight, Inc.
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
Astigmatism
Evaluate the Safety and Effectiveness of the Biotrue ONEday for Astigmatism
Comparing Test Lens for Astigmatism Soft Contact Lens (Test) to 1-Day Control for Astigmatism contact lenses (Control).
- Trial name
- NCT03681808
- Testing
- Control, Test
- Where
- 13 sites in United States
- Volunteers
- 242 people, healthy volunteers welcome
- Sponsor
- Bausch & Lomb Incorporated
Hyperopia, Hyperopic Astigmatism
Safety and Efficacy of Corneal Collagen Cross-linking Following LASIK for Treatment of Hyperopia and Hyperopic Astigmatism
The objectives of this study are to evaluate the safety and efficacy, with regards to regression of refractive outcome, as measured by manifest refraction spherical equivalent (MRSE), of two treatment regimens for hyperopic and…
- Trial name
- NCT01893359
- Testing
- riboflavin ophthalmic solution, 0% dextran, UVA Irradiation (30 mW/cm2 for 2 minutes continuous UVA), UVA Irradiation (30 mW/cm2 for 3 minutes pulsed UVA with an on/off cycle of 2 seconds UVA on/1 second UVA off)
- Where
- 5 sites in United States
- Volunteers
- 2 people
- Sponsor
- Glaukos Corporation
Contact Lens, Astigmatism of Both Eyes
Wear Experience With Daily Toric Contact Lenses Over a Long Day
This study is evaluating the wear experience of a daily toric contact lens after 10, 12, 14, and 16 hours of lens wear.
- Trial name
- NCT04844281
- Testing
- Precision1® Daily Disposable Toric Contact Lens
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Ohio State University
Astigmatism, Ametropia
Clinical Comparison of Two Daily Disposable Toric Soft Contact Lenses
The primary purpose of this study is to demonstrate noninferiority in the visual acuity at distance when wearing PRECISION1™ for Astigmatism (P1fA) soft contact lenses compared to another commercially available, soft toric…
- Conditions
- Astigmatism, Ametropia, Myopia
- Trial name
- NCT05483127
- Testing
- Verofilcon A toric soft contact lenses, Stenfilcon A toric soft contact lenses
- Where
- 11 sites in United States
- Volunteers
- 153 people
- Sponsor
- Alcon Research
Cataract, Astigmatism
AcrySof IQ Toric A-Code Post-Market Clinical Study
The purpose of this study is to clinically confirm the rotational stability of a modified AcrySof IQ toric intraocular lens (IOL) in a Japanese population.
- Trial name
- NCT03350503
- Testing
- AcrySof IQ Toric A-code IOL, Cataract surgery
- Where
- 4 sites in Japan
- Volunteers
- 125 people
- Sponsor
- Alcon Research
Astigmatism
Pseudophakic Astigmatic Reduction With Verion-LenSx Arcuate Incisions
To assess the effectiveness of the Verion-LenSx guided arcuate incision technique to reduce astigmatism in a pseudophakic population.
- Trial name
- NCT02763124
- Testing
- Verion-LenSx
- Where
- United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Gainesville Eye Associates
Astigmatism
Visual Assessment of DAILIES® AquaComfort Plus® for Astigmatism as Compared to 1-DAY ACUVUE® MOIST® for Astigmatism
The purpose of this study is to evaluate functional vision associated with rotational stability at blink of DAILIES® AquaComfort Plus® Toric (DACP T) compared to 1-DAY ACUVUE® MOIST® for Astigmatism (1DAM A).
- Trial name
- NCT02071771
- Testing
- Nelfilcon A toric contact lenses, Etafilcon A toric contact lenses
- Volunteers
- 80 people
- Sponsor
- Alcon Research
Aphakia, Astigmatism
Evaluation of Long-term Safety and Performance of PanOptix Trifocal Intraocular Lens (IOL)
The purpose of this Post-Market Clinical Follow-up (PMCF) study is to describe the long-term safety and performance of the AcrySof IQ PanOptix IOL toric and non-toric models in subjects bilaterally implanted with these IOLs for 3…
- Conditions
- Aphakia, Astigmatism, Presbyopia
- Trial name
- NCT06166901
- Testing
- AcrySof IQ PanOptix IOL Toric, AcrySof IQ PanOptix IOL Non-Toric
- Where
- 7 sites in Spain
- Volunteers
- 211 people
- Sponsor
- Alcon Research
Myopia, Hyperopia
Evaluation of Silicone Hydrogel Daily Wear Contact Lenses for Up to One (1) Month of Daily Wear
The aim of the study is to evaluate if the performance of Invigor A is substantially equivalent to Invigor B contact lenses when used in a one month recommended replacement, daily wear modality.
- Conditions
- Myopia, Hyperopia, Astigmatism
- Trial name
- NCT03722784
- Testing
- Invigor A (test), Invigor B (control)
- Where
- 6 sites in United States
- Volunteers
- 88 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Astigmatism
Success of Dailies Total1 for Astigmatism Contact Lenses in Patients That Have Previously Failed With Toric Contact Lenses
The objective is to determine the percentages of past toric CL wearers (who dropped out of contact lens wear due to dissatisfaction with comfort or vision) who are satisfied with the comfort and vision of DT1fA contact lenses.
- Trial name
- NCT05886452
- Testing
- DT1fA contact lenses
- Where
- United States
- Volunteers
- 65 people
- Sponsor
- Mann Eye Institute
Astigmatism
Subjective Wearing Experience of the Total30 for Astigmatism Lens Among Satisfied Biofinity Toric Lens Wearers
To subjectively evaluate wearing experience in the T30fA lens among subjects who were already satisfied with their Biofinity Toric lenses.
- Trial name
- NCT05938010
- Testing
- Dailies Total1® contact lenses for astigmatism (T30fA)
- Where
- United States
- Volunteers
- 42 people
- Sponsor
- Scripps Poway Eyecare and Optometry
Astigmatism
The Comparative Clinical Performance of Two Daily Disposable Toric Contact Lenses
This study aimed to compare the clinical performance of two daily disposable toric contact lenses.
- Trial name
- NCT05020990
- Testing
- Lens A (delefilcon A), Lens B (stenfilcon A)
- Where
- 3 sites in United Kingdom
- Volunteers
- 55 people
- Sponsor
- CooperVision, Inc.
Astigmatism
Comparison of Two Silicone Hydrogel Toric Contact Lenses
The purpose of this research study is to compare the performance of two different types of Alcon soft toric study contact lenses to obtain information on study lens orientation.
- Trial name
- NCT03392532
- Testing
- Lotrafilcon B toric contact lenses with HYDRAGLYDE, Lotrafilcon B toric contact lenses
- Where
- United States
- Volunteers
- 36 people
- Sponsor
- Alcon Research
Eye Diseases, Postcataract Aphakia
Investigation of the Safety and Effectiveness of Monofocal Toric Intraocular Lens (IOL)
This study is a prospective, multicenter, randomized, double masked trial comparing an investigational Monofocal Toric intraocular lens (IOL) (PODEYE TORIC CYL 1.5 D) and a commercially available non-toric monofocal IOL.
- Conditions
- Eye Diseases, Postcataract Aphakia, Cataract, Lens Opacities
- Trial name
- NCT06399211
- Testing
- PODEYE TORIC Monofocal IOL, Alcon AcrySof SA60AT Monofocal IOL
- Volunteers
- 261 people
- Sponsor
- Beaver-Visitec International, Inc.
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