Clinical trials: Refraction Error
Myopia
Contact Lens in Pediatrics (CLIP) in an Asian Population Study
To evaluate the safety, efficacy and physiological performance of daily disposable spherical and toric soft contact lenses in a vision-corrected population of children ages 8-11 years of age.
- Trial name
- CLIP (NCT00473304)
- Testing
- Johnson&Johnson Acuevue daily disposable lenses
- Where
- Singapore
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Singapore National Eye Centre
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
Presbyopia
Safety and Effectiveness Study of the AcuFocus Corneal Inlay ACI 7000PDT in Presbyopes
The purpose of this study is to determine if the AcuFocus Corneal Inlay ACI 7000PDT will provide an effective method for the correction of presbyopia in patients who have normal distance vision but need a correction such as…
- Trial name
- ACI (NCT00850031)
- Testing
- AcuFocus Corneal Inlay
- Where
- 8 sites in Australia, Austria and 4 more
- Volunteers
- 119 people, healthy volunteers welcome
- Sponsor
- AcuFocus, Inc.
Myopia
Evaluation of DW Silicone Hydrogel Lens Compared to DW Silicone Hydrogel Lens
The purpose of this study is to evaluate the performance of the investigational CooperVision silicone hydrogel lens compared to a currently-marketed silicone hydrogel contact lens up to 30 days of daily lens wear.
- Trial name
- NCT01386008
- Testing
- senfilcon A contact lens, investigational enfilcon A
- Where
- 2 sites in United States, United Kingdom
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- CooperVision, Inc.
Refractive Error
ACUVUE® OASYS® 1-DAY vs DAILIES TOTAL1®
The purpose of this study is to compare the lens fit characteristics, specifically lens centration, of ACUVUE® OASYS® 1-DAY (AO1D) contact lenses and DAILIES TOTAL1® (DT1) contact lenses.
- Trial name
- NCT02750813
- Testing
- Delefilcon A contact lenses, Senofilcon A contact lenses
- Where
- United States
- Volunteers
- 252 people
- Sponsor
- Alcon, a Novartis Company
Cataract, Lens Opacities
Premium Trifocal IOL Comparative Analysis
Short and long-term analysis of the refraction correction and optical image quality of modern premium intraocular lenses (IOLs) with the establishment of a database for quality assurance and optimization the computation constants…
- Conditions
- Cataract, Lens Opacities, Presbyopia
- Trial name
- NCT04875455
- Testing
- POD F GF (BVI Medical), POD F (BVI Medical), Panoptix (Alcon Inc) IOL implantation
- Where
- 4 sites in Germany
- Volunteers
- 133 people
- Sponsor
- Beaver-Visitec International, Inc.
Myopia
The Immediate Effect of Defocus Spectacles On the Choroid Thickness Using Optical Coherence Tomography on Children
The purpose is to examine temporary changes in the subfoveal choroid thickness after removal and after resumed use of Defocus Incorporated Multiple Segment Spectacle Lenses (DIMS).
- Trial name
- TIDOCT (NCT06234189)
- Testing
- Defocus Incorporated Multiple Segment Spectacle Lenses (DIMS)
- Where
- Denmark
- Volunteers
- 16 people
- Sponsor
- Vejle Hospital
Presbyopia
Efficacy Study of Pilocarpine HCl Ophthalmic Solution (AGN-190584) in Participants With Presbyopia
A study to evaluate the efficacy, safety, and pharmacokinetics of pilocarpine hydrochloride (HCl) ophthalmic solution (AGN-190584) when administered bilaterally, once daily for 30 days in participants with presbyopia.
- Trial name
- GEMINI 1 (NCT03804268)
- Testing
- Vehicle, Pilocarpine HCl Ophthalmic Solution
- Where
- 36 sites in United States
- Volunteers
- 323 people
- Sponsor
- Allergan
Cerebral Visual Impairment, Refractive and Accommodative Disorders
Babies in Glasses; a Feasibility Study.
This is a feasibility study to begin investigating the possibility that early use of near vision glasses will improve vision in infants at risk of Cerebral Visual Impairment (CVI), leading to further improvement in other areas of…
- Conditions
- Cerebral Visual Impairment, Refractive and Accommodative Disorders, Hypoxic-Ischemic Encephalopathy, Premature Birth
- Trial name
- BiG (NCT05048550)
- Testing
- Near vision spectacles
- Where
- United Kingdom
- Volunteers
- 55 people
- Sponsor
- Great Ormond Street Hospital for Children NHS Foundation Trust
Presbyopia
Performance of Two Daily Disposable Multifocal Contact Lenses
This study will compare the performance of two daily disposable multifocal soft contact lenses.
- Trial name
- NCT07444658
- Testing
- Lens A (kalfilcon A), Lens B (stenfilcon A)
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- CooperVision International Limited (CVIL)
Aging
Heart Aging When Near Vision Difficulty Begins
Near vision deterioration during aging results from a decrease in accomodation amplitude (AA). Myocardial regeneration is limited, and cardiac aging is an independent risk factor for cardiovascular disease.
- Trial name
- NCT04362215
- Testing
- Subjective accomodation amplitude measurement
- Where
- Turkey (Türkiye)
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Kecioren Education and Training Hospital
Myopia, Outdoor Activity
Vision Care Intervention for Lower Grade School Children in Taiwan
The purpose of this study is making use of school policy- recess outside classroom (ROC7-11) for increasing the time spent outdoor during recess and encouraging children spent time outdoor up to 11 hours in each week to…
- Conditions
- Myopia, Outdoor Activity, Policy of Recess Outside Classroom
- Trial name
- NCT02082743
- Testing
- Outdoor activity in recess time
- Where
- Taiwan
- Volunteers
- 1,020 people
- Sponsor
- Chang Gung Memorial Hospital
Corneal Ectasia, Corneal Disease
Dresden Corneal Disease and Treatment Study
The purpose of this study is long-term follow up of patients with corneal diseases to analyze the quality of surgical interventions and diagnosis.
- Conditions
- Corneal Ectasia, Corneal Disease, Corneal Astigmatism, Keratoconus
- Trial name
- NCT04251143
- Testing
- corneal cross-linking, corneal topography and tomography
- Where
- Germany
- Volunteers
- 700 people
- Sponsor
- Technische Universität Dresden
Myopia
A Dispensing Clinical of Fanfilcon A Lens Against Lotrafilcon B Lens Over 1 Month Wear Per Lens
This is a study to evaluate the performance of fanfilcon A lens when worn on a daily wear modality over approximately 1 month in comparison to the lotrafilcon B lens.
- Trial name
- NCT02716298
- Testing
- fanfilcon A, lotrafilcon B
- Where
- Canada
- Volunteers
- 49 people
- Sponsor
- CooperVision, Inc.
Cataract, Corneal Astigmatism
A Prospective Clinical Investigation to Evaluate the Safety and Performance of 877PTY Toric IOL for Visual Correction of Corneal Astigmatism
Medicontur preloaded hydrophobic monofocal toric intraocular lenses (IOLs) are indicated to improve vision at far distance in adults with or without cataract and correction of pre-existing corneal astigmatism secondarily to…
- Trial name
- NCT06578884
- Testing
- 877PTY
- Where
- Hungary
- Volunteers
- 100 people
- Sponsor
- Medicontur Medical Engineering Ltd
Refractive Errors
Clinical Assessment of a Daily Disposable Soft Silicone Hydrogel Contact Lens
The purpose of this study is to assess the clinical performance of DAILIES TOTAL1® spherical soft contact lenses over approximately 1 week of daily wear.
- Trial name
- NCT06044948
- Testing
- Delefilcon A contact lenses
- Where
- 6 sites in United States
- Volunteers
- 97 people, healthy volunteers welcome
- Sponsor
- Alcon Research
Myopia, Hyperopia
Corneal and Conjunctival Sensitivity and Staining Study
The primary objective of this study is to compare subjective symptoms and ocular health in a group of individuals who are currently wearing soft contact lenses on a daily wear basis, after a short period of no lens wear and…
- Trial name
- NCT00455455
- Testing
- Optifree RepleniSH Multipurpose Disinfecting Solution, ReNu Multiplus Multipurpose Solution
- Where
- Canada
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Waterloo
Healthy, Myopia
Ocular Imaging With Spectral Domain Optical Coherence Tomography
The purpose of this study is to analyze macular retinal thickness and macular volume using the spectral domain - optical coherence tomography (SD-OCT) in normal eyes and in eyes with various ocular diseases.
- Conditions
- Healthy, Myopia, Hypermetropia
- Trial name
- NCT00926549
- Testing
- Spectral domain-OCT (Cirrus™ HD-OCT, Carl Zeiss Meditec AG)
- Where
- South Korea
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Yonsei University
Bilateral Cataract, Astigmatism
Non-comparative Trial Following Participants Implanted Bilaterally With Mini WELL Toric Ready Intraocular Lens for 6 Months After the Second Eye Implant (FUSION)
This is a multicenter, non-comparative trial following participants implanted bilaterally with the Mini WELL Toric Ready intraocular lens (IOL) for 6 months after the second eye implant.
- Trial name
- FUSION (NCT03861351)
- Testing
- Mini WELL Toric Ready intraocular lens
- Where
- 4 sites in France, Germany and 1 more
- Volunteers
- 58 people
- Sponsor
- SIFI SpA
Myopia
Clinical Performance of Hydrogel vs. Silicone Hydrogel Contact Lenses
The aim of this non-dispensing fitting study is to evaluate the subjective comfort, lens handling, lens fitting characteristics and visual acuity of different hydrogel lens designs versus silicone hydrogel lenses
- Trial name
- NCT02131402
- Testing
- ocufilcon D, omafilcon A, methafilcon A
- Where
- Spain
- Volunteers
- 60 people
- Sponsor
- CooperVision, Inc.