Clinical trials: Error, Refractive
Astigmatism
Diurnal Changes of the Cornea - a Pilot Study
Aim of this study is to gain a better understanding of the diurnal changes of the cornea to improve toric IOL power calculations.
- Trial name
- NCT02155556
- Where
- Austria
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Prim. Prof. Dr. Oliver Findl, MBA
Presbyopia, Refractive Errors
Assessing Fitting Guides in Alcon Multifocal Contact Lenses
The purpose of this study is to compare an alternative fitting guide to a current fitting guide for optimizing contact lens parameters and determining contact lens prescription.
- Trial name
- NCT03118934
- Testing
- Lotrafilcon B multifocal contact lenses, Nelfilcon A multifocal contact lenses, Delefilcon A multifocal contact lenses
- Where
- 20 sites in United States, Canada and 1 more
- Volunteers
- 188 people
- Sponsor
- Alcon Research
Myopia
Comparative Performance of PureVision Lens Designs
The objective of this study is to evaluate the performance of the PureVision Lens designs when worn on a 30-day continuous wear basis
- Trial name
- NCT00661687
- Testing
- Currently Marketed PureVision Contact Lens., Alternate Design of the PureVision Contact Lens.
- Where
- 2 sites in Malaysia, Philippines
- Volunteers
- 206 people
- Sponsor
- Bausch & Lomb Incorporated
Cataract, Presbyopia
IOL Implantation After KAMRA Inlay Removal
A. The primary purpose of the study is to evaluate outcomes of aphakic eyes implanted with the IC-8 IOL following cataract removal in prior inlay patients after KAMRA inlay removal. B.
- Trial name
- NCT03320473
- Testing
- IC-8 IOL
- Where
- Philippines
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- AcuFocus, Inc.
Presbyopia
Safety and Efficacy of Pilocarpine Ophthalmic Topical Cream for the Treatment of Presbyopia
This is a Multicenter, Randomized, Double-Masked Placebo-Controlled, Parallel Group Phase 2 Trial Evaluating the Safety and Efficacy of Pilocarpine Ophthalmic Topical Cream for the Treatment of Presbyopia.
- Trial name
- NCT05124275
- Testing
- Pilocarpine Ophthalmic Topical Cream, Dose 1, Pilocarpine Ophthalmic Topical Cream, Dose 2, Pilocarpine Ophthalmic Topical Cream, Dose 3
- Where
- 10 sites in United States
- Volunteers
- 123 people
- Sponsor
- Glaukos Corporation
Amblyopia
Morning Versus Evening Patching in Childhood Amblyopia
To determine whether the time of day at which daily occlusion therapy is administered-morning, with 2 hours of patching completed within 07:00-10:00, versus evening, with 2 hours completed within 17:00-20:00-affects visual-acuity…
- Trial name
- NCT07294599
- Testing
- eye-patching
- Where
- 2 sites in Jordan
- Volunteers
- 84 people
- Sponsor
- Yarmouk University
Myopia
Evaluating the Performance of Precision1 Daily Disposable Contact Lens in a Group of Heavy Digital Device Users
The purpose of this study is to evaluate the performance of Precision1 DD CLs with regard to subjective symptoms (dryness, comfort, vision), lens fit and time to haze in CL wearers who identify themselves as heavy digital devices…
- Trial name
- PUG (NCT04201639)
- Testing
- Verofilcon A contact lenses
- Where
- Canada
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- University of Waterloo
Cataract, Corneal Astigmatism
Post-market Study to Obtain Surgeon Feedback on Clinical Outcome in Eyes Implanted With TECNIS Toric II IOL
This is a multicenter, prospective, single-arm, open-label, clinical study of the commercially available TECNIS Toric II, Model ZCU IOL.
- Trial name
- NCT04210232
- Testing
- TECNIS® TORIC II Intraocular Lens (IOL)
- Where
- 12 sites in United States
- Volunteers
- 54 people
- Sponsor
- Johnson & Johnson Surgical Vision, Inc.
Primary Pterygium, Astigmatism
Preoperative and Postoperative Refractive and Topographic Evaluation in Patients With Primary Pterygium: Comparison of Two Surgical Techniques
This study evaluated changes in refractive status and corneal topography before and after surgical treatment of primary pterygium.
- Trial name
- RETOP (NCT07742995)
- Testing
- Conjunctival Autograft, Amniotic Membrane Transplantation
- Volunteers
- 78 people
- Sponsor
- Instituto de Oftalmología Fundación Conde de Valenciana
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)
Myopia
Comparison of Clinical Performance and Subjective Preference of Three Contact Lenses
The purpose of this study is to evaluate the clinical performance and subject's preference out of three LRE (Limbal Ring Enhancing) lens types: etafilcon A (Johnson\&Johnson), methafilcon A (Interozzo), and methafilcon A…
- Trial name
- NCT03134599
- Testing
- etafilcon A, methafilcon A - Interozzo, methafilcon A - CVI (CooperVision)
- Where
- South Korea
- Volunteers
- 60 people
- Sponsor
- CooperVision, Inc.
Myopia
Soft Contact Lens Fitting With Different Sagittal Height
To evaluate whether there is a difference in subjective and objective fit of soft lenses with different sagittal height
- Trial name
- NCT05962528
- Testing
- Soft lens
- Where
- China
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Refractive Errors
Clinical Assessment of Two Daily Wear Reusable Soft Silicone Hydrogel Contact Lenses
The overall objective of this clinical study is to describe the clinical performance of the TOTAL30® soft contact lens compared to the ACUVUE® OASYS® with HYDRACLEAR PLUS (AOHP) soft contact lens in a daily wear modality.
- Trial name
- NCT05056987
- Testing
- Lehfilcon A contact lenses, Senofilcon A contact lenses, AOSEPT PLUS with HydraGlyde
- Where
- United Kingdom
- Volunteers
- 36 people
- Sponsor
- Alcon Research
Myopia
Effect of Axial Length of the Globe on Retinal Nerve Fibre Thickness
the goal of this obsrevational study is to learn about retinal nerve fibres and if their numbers changed with axial length of the globe or not.
- Trial name
- NCT05716776
- Testing
- Optical coherence tomography (OCT)
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Sohag University
Laser in Situ Keratomileusis
Patient Reported Outcomes With LASIK: PROWL-2
This study evaluates a questionaire designed to measure satisfaction and ophthalmic-related quality of life (QoL) of 300 civilian participants prior to and three months following state-of-the-art laser in situ keratomileusis…
- Trial name
- PROWL-2 (NCT01655420)
- Testing
- LASIK
- Where
- 5 sites in United States
- Volunteers
- 300 people
- Sponsor
- Food and Drug Administration (FDA)
Hyperopia
Effect of Light-Blocking Lenses on Pediatric Hyperopia
This study aims to assess the efficacy of light-blocking lenses in facilitating emmetropization in children with hyperopia and to explore their influence on various aspects of visual function.
- Trial name
- NCT07142915
- Testing
- light-blocking lenses, single-vision lenses
- Where
- China
- Volunteers
- 156 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Presbyopia
Study of AGN-190584 Eye Drops to Assess Safety and Efficacy in Participants Aged 40-80 Years With Pseudophakic Presbyopia
Presbyopia is a condition in which the eye exhibits a diminished ability to focus on near objects with increasing age. This study will assess the safety and exploratory efficacy of AGN-190584 is in treating participants with…
- Trial name
- ARIES (NCT05393089)
- Testing
- AGN-190584, Vehicle
- Where
- 32 sites in United States
- Sponsor
- Allergan
Presbyopia, Refractive Errors
Evaluation of the Safety and Effectiveness of Aceclidine (LNZ101) and Aceclidine + Brimonidine (LNZ100) in the Treatment of Presbyopia
To evaluate the safety and effectiveness of Aceclidine/Brimonidine (LNZ101) compared with Aceclidine (LNZ100) and vehicle in the treatment of Presbyopia.
- Conditions
- Presbyopia, Refractive Errors, Eye Diseases
- Trial name
- NCT05431543
- Testing
- Aceclidine+Brimonidine combination ophthalmic solution, Aceclidine ophthalmic solution, Vehicle proprietary ophthalmic solution
- Where
- 5 sites in United States
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- LENZ Therapeutics, Inc
Myopia, Refractive Error
A Comparison of Two Color Contact Lenses in Habitual Clear Contact Lens Wearers
The purpose of this study was to evaluate overall satisfaction with AIR OPTIX® COLORS as compared to FRESHLOOK® COLORBLENDS contact lenses.
- Trial name
- NCT01782482
- Testing
- Lotrafilcon B contact lens with color, Phemfilcon A contact lens with color
- Volunteers
- 574 people
- Sponsor
- Alcon Research
Refractive Error
Clinical Evaluation of Two Daily Disposable Contact Lenses
This study seeks to evaluate the clinical performance of two daily disposable contact lenses.
- Trial name
- NCT01163760
- Testing
- etafilcon A, ocufilcon D
- Where
- Singapore
- Volunteers
- 50 people
- Sponsor
- Johnson & Johnson Vision Care, Inc.
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