Clinical trials: Visual Acuity
Visual Acuity
Marketed Contact Lens Real World Through Focus Curve
This is a single-visit prospective study to establish a real world Marketed Contact Lens 'Through Focus Curve' (TFC) measurement by comparing the consistency of vision between myopes and hyperopes.
- Trial name
- NCT02679976
- Testing
- etafilcon A
- Where
- United Kingdom
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Pregnancy
N-3 Fatty Acid Requirements for Human Development
Polyunsaturated fatty acids known as n-3 fatty acids are essential dietary nutrients for humans, and are known to be important to reducing the risk of certain diseases, particularly those related to neural system, cardiovascular…
- Trial name
- NCT00620672
- Testing
- omega 3 fatty acids, vegetable oil
- Where
- Canada
- Volunteers
- 270 people, healthy volunteers welcome
- Sponsor
- University of British Columbia
Dysphotopsia, Posterior Capsule Opacification
Clinical Evaluation of Low Contrast Visual Performance and Low Light Phenomena in Patients With Various Intraocular Lens Implants
The goal of this clinical investigation is to evaluate visual acuity and contrast sensitivity in low lighting conditions using several different testing devices, and measure nighttime side effects of intraocular lens (IOL)…
- Conditions
- Dysphotopsia, Posterior Capsule Opacification, Visual Acuity, Visual Function
- Trial name
- NCT07213167
- Where
- United States
- Volunteers
- 120 people
- Sponsor
- Dr. Daniel H. Chang, MD
Vision
Safety Study Looking at the Effects of Stendra on Vision
The purpose of this study is to see if Stendra causes any changes in vision, eye pressure, pupil dilation, and color vision in healthy males.
- Trial name
- NCT02033200
- Testing
- Stendra 200 mg
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- VIVUS LLC
Retinal Detachment
REtinal Detachment Outcomes Study
Background: Few large randomized controlled trials provide strong evidence to guide surgical repair of primary rhegmatogenous retinal detachment (RRD) repair.
- Trial name
- REDOS (NCT05863312)
- Testing
- Pars plana vitrectomy, Pars plana vitrectomy with scleral buckle, Sulfur hexafluoride gas tamponade
- Where
- Canada
- Volunteers
- 560 people
- Sponsor
- CHU de Quebec-Universite Laval
Diabetes Mellitus, Macular Edema
Intravitreal Aflibercept Injection in Vision Impairment Due to DME
To determine the efficacy of intravitreally (IVT) administered VEGF Trap-Eye on the best-corrected visual acuity (BCVA) assessed by the early treatment diabetic retinopathy study (ETDRS) chart in subjects with diabetic macular…
- Trial name
- VIVID-DME (NCT01331681)
- Testing
- VEGF Trap-Eye (BAY86-5321), Macular Laser Photocoagulation (Control)
- Where
- 73 sites in Australia, Austria and 9 more
- Volunteers
- 406 people
- Sponsor
- Bayer
Visual Acuity
A New Parameter for the Assessment of Distance Visual Capacity: the Critical Visual Acuity (CVA)
The conventional examination of the visual acuity (VA) does not take into account the patient's reading speed. However, the consideration of the speed for the recognition of the VA charts' symbols leads to the more accurate and…
- Trial name
- NCT04632901
- Testing
- VA assessment, CVA assessment
- Where
- Greece
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Democritus University of Thrace
Visual Acuity
Clinical Evaluation of Etafilcon A Contact Lenses Using a Novel Manufacturing Technology
This study is a multi-site, randomized, double-masked, 2×2 crossover design, 1-week dispensing study. Subjects will wear both Test and Control lenses in each eye in a random order for 1-week each as a daily disposable modality…
- Trial name
- NCT03962790
- Testing
- 1-DAY ACUVUE® MOIST
- Where
- 6 sites in United States
- Volunteers
- 95 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Non-infectious Intermediate Uveitis, Non-infectious Posterior Uveitis
Safety,Tolerability and Efficacy of Intravitreal LFG316 in Patients With Active Non-infectious Intermediate-, posterior-or Panuveitis ,
This was a multi-center, randomized, active-controlled, open-label study. Approximately 24 patients with active, non-infectious intermediate-, posterior-, or panuveitis requiring systemic immunosuppressive therapy were enrolled.
- Conditions
- Non-infectious Intermediate Uveitis, Non-infectious Posterior Uveitis, Non-infectious Panuveitis
- Trial name
- NCT01526889
- Testing
- LFG316, Conventional Therapy
- Where
- 8 sites in United States, United Kingdom
- Volunteers
- 25 people
- Sponsor
- Novartis Pharmaceuticals
Visual Acuity
Clinical Evaluation of Two Approved Contact Lenses
Adaptive, randomized, subject-masked, dispensing study to evaluate the short-term, clinical performance of two FDA-approved contact lens.
- Trial name
- NCT02759692
- Testing
- TEST Contact Lens, CONTROL Contact Lens
- Where
- 13 sites in United States
- Volunteers
- 283 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Visual Acuity
Clinical Investigation of Visual Acuity in Contact Lens Wearers After Instillation of Investigational Lubricating Eye Drops
This will be a single-visit, multi-site, randomized, single-masked, bilateral, active-controlled, non-dispensing, 2X2 crossover study.
- Trial name
- NCT05814367
- Testing
- Blink® Tears eye drops in a multidose bottle, Preservative-free investigational lubricating eye drops in a Novelia® eyedropper
- Where
- 3 sites in United States
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Stroke
Reliability of Community Ambulation Ability, Fall Risk, and Dynamic Visual Acuity Assessments in Stroke
Nearly half of individuals with stroke experience limitations in community ambulation, and 35.7% of community-dwelling stroke survivors experienced falls while walking, indicating that falls are common during routine daily…
- Trial name
- NCT07494487
- Where
- Taiwan
- Volunteers
- 30 people
- Sponsor
- National Yang Ming Chiao Tung University
Visual Acuity
Ex-vivo Adhesion of Bacteria to Different Contact Lens Materials
This is a single-site, 4-visit, contralateral, dispensing, open-label, randomized study. Each eligible subject will be randomized into one of two sequence groups to wear two lens types contralaterally (Test on the right eye and…
- Trial name
- NCT04108286
- Testing
- 1-DAY ACUVUE MOIST, DAILIES AQUA COMFORT PLUS
- Volunteers
- healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Optic Neuritis
Privosegtor Investigation in Optic Neuropathies Efficacy Evaluation Research
The goal of this clinical trial is to evaluate the safety and efficacy of privosegtor, a neuroprotective candidate, in patients diagnosed with optic neuritis (ON).
- Trial name
- PIONEER-1 (NCT07623668)
- Testing
- Privosegtor, Methylprednisolone
- Where
- 4 sites in United States
- Volunteers
- 210 people
- Sponsor
- Oculis
Amblyopia, Amblyopia Unilateral
Valproate for the Treatment of Residual Amblyopia
The goal of this clinical trial is to determine the efficacy of valproate as an adjunct therapy to treat amblyopia beyond the critical period in children aged 8-17 years who have amblyopia of ≥3 lines of interocular…
- Conditions
- Amblyopia, Amblyopia Unilateral, Amblyopia, Anisometropic, Amblyopia Strabismic
- Trial name
- VARA (NCT07226141)
- Testing
- Valproate, Patch
- Where
- United States
- Volunteers
- 28 people
- Sponsor
- Boston Children's Hospital
Visual Acuity
Effects of Forward Head Posture Correction on Visual Acuity in Low Level Visually Impaired University Students
The aim of this research is to find the effect of forward head posture correction on visual acuity and fatigue in low level visually impaired university students.
- Trial name
- NCT06019806
- Testing
- POSTURAL CORRECTION four exercises, postural Correction education with a manuscript
- Where
- Pakistan
- Volunteers
- 48 people
- Sponsor
- Riphah International University
Retinal Dystrophies, Color Vision Defects
Natural History Study of Inherited Retinal Diseases
This prospective, observational investigation seeks to delineate the interplay between chromatic vision deficits and both functional visual outcomes and anatomical retinal biomarkers in individuals affected by Inherited Retinal…
- Conditions
- Retinal Dystrophies, Color Vision Defects, Vision Disorders, Macular Degeneration
- Trial name
- MojiLVCDT (NCT07085533)
- Where
- China
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Zhongmou Therapeutics
Parkinson Disease, Oculomotor; Disorder
Effectiveness of Oculomotor Training in Parkinson's Disease
Parkinson's disease (PD) is a common neurodegenerative disorder which is characterized by both motor and non-motor symptoms and usually affects people aged 50 years or above.
- Trial name
- NCT04560504
- Testing
- Control Group, Oculomotor Training Group
- Where
- Hong Kong
- Volunteers
- 27 people
- Sponsor
- The Hong Kong Polytechnic University
Vestibulocochlear Nerve Diseases, Vestibular Disorder
Vestibular Balance Therapy Intervention for Children
The goal of this within groups clinical trial is to determine the feasibility of a home-based vestibular balance therapy program for children with vestibular hypofunction.
- Conditions
- Vestibulocochlear Nerve Diseases, Vestibular Disorder, Bilateral Vestibular Loss
- Trial name
- VBT-C (NCT05741515)
- Testing
- Vestibular Balance Therapy
- Where
- United States
- Volunteers
- 21 people
- Sponsor
- University of Alabama at Birmingham
Corneal Ulcer, Eye Infections, Fungal
The Mycotic Ulcer Treatment Trial II: A Randomized Trial Comparing Oral Voriconazole vs Placebo
The purpose of this study is to determine if the addition of oral voriconazole to topical treatment regimens results in lower rates of perforation in severe fungal corneal ulcers.
- Trial name
- MUTTII (NCT00997035)
- Testing
- Voriconazole
- Where
- 7 sites in United States, India and 1 more
- Volunteers
- 240 people
- Sponsor
- University of California, San Francisco