Clinical trials: Astigmatism
Refractive Errors, Astigmatism
Clinical Comparison of 2 Daily Disposable Toric Soft Contact Lenses
The purpose of this study to evaluate the overall performance of PRECISION1™ for Astigmatism contact lenses with MyDay® Toric contact lenses.
- Trial name
- NCT05039112
- Testing
- Verofilcon A toric contact lenses, Stenfilcon A toric contact lenses
- Where
- 6 sites in United States
- Volunteers
- 64 people
- Sponsor
- Alcon Research
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
Comparison of Senofilcon A Toric Lenses to Balafilcon A Toric Lenses Over Extended Wear Period
To evaluate two toric contact lenses on the ocular physiology of existing contact lens wearers when used in an extended wear modality of days/six nights.
- Trial name
- NCT00762502
- Testing
- senofilcon A toric contact lens, balafilcon A toric contact lens
- Where
- 8 sites in United States, Australia
- Volunteers
- 112 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Aphakia, Presbyopia
Post Approval Study of the AcrySof® IQ ReSTOR® Toric IOLs
This is a prospective, multicenter, post-approval active surveillance study. The purpose of this study is to report the rate of post-surgical intraocular inflammation (based upon a specified case definition) reported within a…
- Conditions
- Aphakia, Presbyopia, Astigmatism
- Trial name
- NCT03733730
- Testing
- ACRYSOF IQ RESTOR +3.0 Multifocal Toric IOL, ACRYSOF IQ RESTOR +2.5 D Multifocal Toric IOL, ACRYSOF IQ RESTOR +2.5 D Multifocal IOL
- Where
- 38 sites in United States, Puerto Rico
- Volunteers
- 2,449 people
- Sponsor
- Alcon Research
Myopia, Astigmatism
LASIK Surgery With a New Laser for the Treatment of Myopia Without Astigmatism
The AQUARIUZ ablation laser is a solid-state laser and has been CE approved for corneal surgery since March 2020 for the treatment of short- and longsightedness with and without astigmatism.
- Trial name
- AQUARIUZ2020 (NCT04794023)
- Testing
- Corneal Ablation
- Where
- Switzerland
- Volunteers
- 27 people
- Sponsor
- Ziemer Ophthalmic Systems AG
Astigmatism
Evaluation Study on Corneal Lens for Vision Correction
The objective of this study is to evaluate the fitting and visual outcomes of Nexis Lens, made of silicone commonly used in the contact lens industry, on healthy eye with or without astigmatism.
- Trial name
- NCT02053688
- Testing
- Astigmatic Correction Lens (Nexis ACCL lenses), Toric Soft Contact Lenses
- Where
- 6 sites in United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- FORSIGHT Vision3
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
Astigmatism
Evaluation of Visual Acuity of the Envista One-piece Acrylic Toric IOL MX60ET
The primary objective of this study is to evaluate rotational stability and functional improvements in visual acuity of the enVista monofocal Toric IOL (MX60ET) following cataract surgery.
- Trial name
- NCT05739656
- Testing
- CATARACT SURGERY
- Where
- United States
- Volunteers
- 100 people
- Sponsor
- Bausch & Lomb Incorporated
Myopia, Astigmatism
Safety and Efficacy Evaluation of a New Contact Lens Disinfecting Solution in Soft 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 silicone hydrogel and soft contact lens wearers.
- Conditions
- Myopia, Astigmatism, Hyperopia, Refractive Error
- Trial name
- NCT01912768
- Testing
- FID 120947A contact lens disinfecting solution, renu fresh multi-purpose solution, Soft contact lenses
- Volunteers
- 362 people
- Sponsor
- Alcon Research
Cataract, Corneal Astigmatism
ClarVista HARMONI Toric Trial With Intraoperative Exchange
The purpose of this study was to demonstrate the safety and effectiveness of the HARMONI® Modular Intraocular Lens System with a toric optic in subjects with pre-existing corneal astigmatism in need of cataract surgery.
- Conditions
- Cataract, Corneal Astigmatism, Aphakia
- Trial name
- NCT03054649
- Testing
- HARMONI® Modular Intraocular Lens System, Intraoperative optic exchange
- Where
- 2 sites in Mexico, Philippines
- Volunteers
- 44 people
- Sponsor
- ClarVista Medical
Cataract, Astigmatism
A Comparison of Corneal Aberrations in Subjects With Contralateral AcrySof IQ Toric Intraocular Lens (IOL) and AcrySof IQ IOL With Limbal Relaxing Incision (LRI)
The purpose of this study was to evaluate and compare postoperative corneal aberrations and visual parameters in patients contralaterally implanted with an AcrySof IQ Toric intraocular lens (IOL) and AcrySof IQ Aspheric IOL with…
- Trial name
- NCT01045733
- Testing
- AcrySof IQ Toric IOL, AcrySof IQ Aspheric IOL, Limbal Relaxing Incision (LRI)
- Where
- United States
- Volunteers
- 70 people
- Sponsor
- Alcon Research
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
Astigmatism
Non-dispensing Study to Check Prescription Equivalence of Two Daily Disposable Toric Contact Lens Types
The purpose of this study is to determine whether the prescription determined for a new daily disposable toric contact lens will be a good match to a prescription determined for an existing brand of lens.
- Trial name
- NCT01120782
- Testing
- etafilcon A toric contact lens with new wetting agent, etafilcon A toric contact lens
- Where
- 2 sites in United States
- Volunteers
- 45 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
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
Cataract, Lens Opacities
Rotational Stability Analysis of a Toric Monofocal IOL
This is a single-center, prospective PMCF study whereby patients undergoing routine cataract surgery will have monolateral implantation of hydrophilic monofocal toric intraocular lens Ankoris.
- Conditions
- Cataract, Lens Opacities, Astigmatism
- Trial name
- PHY2013 (NCT04933487)
- Testing
- IOL implantation experimental
- Where
- Germany
- Volunteers
- 23 people
- Sponsor
- Beaver-Visitec International, Inc.
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.
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
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
Cataract, Lens Opacities
PMCF Study on Monofocal Toric IOL (PODEYE TORIC) in Asia
This is a single-center, prospective, open-label PMCF study whereby patients undergoing routine cataract surgery will have mono- or bilateral implantation of hydrophobic acrylic monofocal toric intraocular lens PODEYE TORIC…
- Conditions
- Cataract, Lens Opacities, Astigmatism
- Trial name
- PHY2102 (NCT04778501)
- Testing
- IOL implantation experimental
- Where
- Philippines
- Volunteers
- 45 people
- Sponsor
- Beaver-Visitec International, Inc.
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.