Clinical trials: Astigmatism
Astigmatism
Clinical Performance of Habitual Hydrogel vs. Silicone Hydrogel Toric Contact Lenses
Evaluate the clinical performance of existing wearers of hydrogel toric lenses when refitted with Avaira toric silicone hydrogel contact lenses over 1 week of wear.
- Trial name
- NCT02142361
- Testing
- enfilcon A
- Where
- Spain
- Volunteers
- 60 people
- Sponsor
- CooperVision, Inc.
Refractive Errors, Ametropia
Clinical Performance of Two Daily Disposable Toric Soft Contact Lenses
The purpose of this study is to compare the clinical performance of PRECISION1™ for Astigmatism (P1fA) contact lenses with 1-DAY ACUVUE MOIST® for ASTIGMATISM (AMfA) contact lenses.
- Conditions
- Refractive Errors, Ametropia, Astigmatism
- Trial name
- NCT04908488
- Testing
- Verofilcon A toric contact lenses, Etafilcon A toric contact lenses
- Where
- 8 sites in United States
- Volunteers
- 115 people
- Sponsor
- Alcon Research
Cataract, Presbyopia
Clinical Investigation of a Small Aperture Extended Depth of Focus Intraocular Lens in Patients With Complex Corneas
The objective of this study is to evaluate the clinical outcomes of the IC-8 IOL implanted in patients with complex corneas after crystalline lens removal.
- Conditions
- Cataract, Presbyopia, Irregular Astigmatism
- Trial name
- NCT05574270
- Testing
- IC-8 Intraocular Lens (IOL)
- Where
- 2 sites in Philippines, Singapore
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- AcuFocus, Inc.
Astigmatism
Prospective Evaluation of the Effectiveness of the Femtosecond Laser-assisted Refractive Astigmatic Keratotomy.
This clinical phase IV study is an open, prospective phase IV study and acts to evaluate the effectiveness of the femtolaser-assisted astigmatic keratotomy.
- Trial name
- NCT01885780
- Testing
- Laser-assisted Astigmatic keratotomy
- Where
- Czechia
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Technolas Perfect Vision GmbH
Cataract
Clinical Study to Evaluate the RxSight Light Adjustable Lens With the Light Delivery Device in Subjects With Preoperative Corneal Astigmatism
For patients undergoing cataract surgery, the purpose of this study is to evaluate a patient's far vision without glasses and quality of vision after implantation and UV treatment of the RxSight Light Adjustable Lens…
- Trial name
- NCT03771352
- Testing
- RxSight RxLAL
- Where
- 3 sites in Germany, United Kingdom
- Volunteers
- 55 people
- Sponsor
- RxSight, Inc.
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.
Astigmatism, Myopia
Short-term Study of Two Soft Contact Lenses in Wearers With Low Astigmatism
The primary objective of the study is to evaluate and compare the performance of two soft contact lens.
- Conditions
- Astigmatism, Myopia, Hyperopia
- Trial name
- NCT06873048
- Testing
- Control Contact Lens (stenfilcon A Sphere), Test Contact Lens (stenfilcon A Toric)
- Where
- Canada
- Volunteers
- 32 people
- Sponsor
- CooperVision International Limited (CVIL)
Astigmatism
Prospective Evaluation of the Long-term Effectiveness of the Femtosecond Laser-assisted Arcuate Incisions
This clinical study is an open, controlled, prospective, single center, single-surgeon, post-market-clinical-follow-up study to evaluate the long-term (18 months) effectiveness of the femtolaser-assisted astigmatic keratotomy.
- Trial name
- NCT02164994
- Where
- Czechia
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Technolas Perfect Vision GmbH
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
Astigmatism
Hydrophobic Acrylic Toric IOL Designed to Reduce the Effects of Preoperative Corneal Astigmatism
The investigational enVista IOL, Model MX60Tis equipped with toric optics and axis marks on the posterior surface to minimize the possibility of surgically induced astigmatism.
- Trial name
- NCT01852084
- Testing
- enVista® One-Piece Hydrophobic Acrylic Toric IOL, enVista control lens
- Where
- United States
- Volunteers
- 191 people
- Sponsor
- Bausch & Lomb Incorporated
Astigmatism
A Bilateral Dispensing Clinical Trial of an Sapphire Lens Against Senofilcon A Toric for Astigmatism Lens
This study was conducted to evaluate the clinical performance of an investigational silicone-hydrogel lens against Senofilcon A toric lens. The study results were not used for design validation of the investigational product.
- Trial name
- NCT02555098
- Testing
- Sapphire contact lenses, senofilcon A contact lenses
- Where
- United States
- Volunteers
- 23 people
- Sponsor
- CooperVision, Inc.
Myopia, Astigmatism
Comparative In-Vivo Wetting Characteristics of Silicone Hydrogel Materials With Selected Lens Care Systems
The purpose of this study is to evaluate the lipid uptake, wetting characteristics, and visual performance of AIR OPTIX® AQUA and ACUVUE® OASYS® with HYDRACLEAR® contact lenses when used in conjunction with two contact lens care…
- Conditions
- Myopia, Astigmatism, Refractive Error
- Trial name
- NCT01699750
- Testing
- Lotrafilcon B contact lenses, Senofilcon A contact lenses, OPTI-FREE® PUREMOIST® MPDS
- Where
- United States
- Volunteers
- 109 people
- Sponsor
- Alcon Research
Astigmatism
Quantification of the Visual Benefits of Soft Toric Contact Lenses Compared to Soft Spherical Contact Lenses
The aim of this work is to undertake a range of vision-related measures with soft toric contact lenses soft spherical contact lenses and spectacle lens correction across a range of levels of astigmatism.
- Trial name
- NCT04613882
- Testing
- Soft Toric Custom Made Contact lens, Soft Spherical Contact Lenses, Spectacle Correction
- Where
- United Kingdom
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
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
Presbyopia, Hyperopia
Multicenter Evaluation of Safety and Effectiveness of Presbyopic LASIK for Hyperopes
The Presbyopia Algorithm subject to this study has been specifically developed to prospectively generate a treatment file for the Technolas 217z100 laser that will provide Presbyopia correction among eyes with primary hyperopia…
- Trial name
- PresbyLASIK (NCT00910403)
- Testing
- LASIK
- Where
- 4 sites in France, Spain
- Volunteers
- 80 people
- Sponsor
- Technolas Perfect Vision GmbH
Astigmatism
Clinical Comparison of Two Silicone Hydrogel Toric Lenses in the US
The purpose of this trial is to compare the performance of two different contact lenses for contact lens wearers with astigmatism.
- Trial name
- NCT01007812
- Testing
- Lotrafilcon B contact lens, Comfilcon A contact lens
- Volunteers
- 50 people
- Sponsor
- CIBA VISION
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.
Refractive Errors
Clinical Performance Evaluation of Two Daily Disposable Silicone Hydrogel Toric Contact Lenses
The purpose of this study is to evaluate the rotational behavior of DT1 Toric contact lenses.
- Trial name
- NCT04254003
- Testing
- DT1 Toric contact lenses, AO1DfA contact lenses
- Where
- 2 sites in United States
- Volunteers
- 48 people
- Sponsor
- Alcon Research
Hyperopia
Safety and Effectiveness Study of the MEL 80 Excimer Laser Using LASIK in the Treatment of Hyperopia
The purpose of this study is to determine whether the MEL 80 Excimer Laser is effective in the treatment of hyperopia, when used as part of the Laser In Situ Keratomileusis (LASIK) procedure.
- Trial name
- NCT00762281
- Testing
- MEL 80 Hyperopic LASIK Treatment
- Where
- 6 sites in United States
- Volunteers
- 189 people, healthy volunteers welcome
- Sponsor
- Carl Zeiss Meditec, Inc.
Visual Impairment, Myopia
At-home Testing Refraction Results With Best Corrected Visual Acuity (BCVA) Outcomes in Adults
This study is aimed at examining the BCVA from try-on glasses constructed from measurements from the EyeQue VisionCheck.
- Conditions
- Visual Impairment, Myopia, Hyperopia, Astigmatism
- Trial name
- NCT04820218
- Testing
- With Try-on glasses
- Where
- United States
- Volunteers
- 53 people, healthy volunteers welcome
- Sponsor
- EyeQue Corp.