Clinical trials: Visual Acuity
Corneal Ulcer, Eye Infections, Fungal
Mycotic Ulcer Treatment Trial I
The purpose of this study is to determine if natamycin or voriconazole results in better visual outcomes in fungal corneal ulcers, especially visual acuity.
- Trial name
- MUTT I (NCT00996736)
- Testing
- Natamycin, Voriconazole
- Where
- 3 sites in United States, India
- Volunteers
- 323 people
- Sponsor
- University of California, San Francisco
Visual Acuity, Astigmatism
LFR-260 vs Traditional Phoropter in Visual Acuity Testing
The purpose of this study is to establish if LFR-260 (investigational device) is not inferior in effectiveness to a traditional phoropter (control device) when applied in visual acuity test in subjects undergoing a full routine…
- Conditions
- Visual Acuity, Astigmatism, Anisometropia
- Trial name
- NCT05259163
- Testing
- LFR-260 portable phoropter, Traditional phoropter (SOC)
- Where
- 2 sites in United States
- Volunteers
- 112 people, healthy volunteers welcome
- Sponsor
- Evolution Optiks Limited
Refractive Errors
Comparison of Visual Acuity Performed in Office Versus In Residence
GoCheck has developed and deployed a home-based visual acuity test that may be used in-office or in residence. The test methodology utilizes modified ATS and ETDRS protocols with Sloan optotypes, crowding bars and sophisticated…
- Trial name
- VA IR vs IO (NCT05250986)
- Testing
- GoCheck Kids (iOS), GoCheck Kids (Windows), GoCheck at Home (iOS)
- Where
- 4 sites in United States, Israel
- Volunteers
- 325 people, healthy volunteers welcome
- Sponsor
- Gobiquity Mobile Health
Vision Disorder
A Novel Acuity Testing Method
The purpose of this protocol is to develop a valid, reliable, better standardized, and more efficient test of visual acuity (ability to see fine details) for use in clinical trials.
- Trial name
- NCT00013936
- Where
- United States
- Volunteers
- 500 people
- Sponsor
- National Eye Institute (NEI)
Macular Holes
Observation of Recovery of Foveal Cone Microstructures After Macular Hole Surgery
The objective is to determine whether a recovery of the microstructures of the foveal photoreceptors after macular hole (MH) closure is correlated with the best-corrected visual acuity (BCVA) is determined.
- Trial name
- NCT01306487
- Testing
- Vitrectomy
- Where
- Japan
- Volunteers
- 58 people
- Sponsor
- Kyorin University
Retinal Detachment
Correlation Between OCT and mFERG Findings With VA After Vitrectomy Surgery for Retinal Detachment
Correlation between optical coherence tomography and multifocal electroretinogram findings with visual acuity after vitrectomy surgery for Retinal detachment.
- Trial name
- NCT05993208
- Testing
- optical coherence tomography,multifocal electroretinogram. VA measurment
- Where
- Egypt
- Volunteers
- 40 people
- Sponsor
- New Valley University
Leber Hereditary Optic Disease
Efficacy and Safety Study of Bilateral IVT Injection of GS010 at Two Dose Levels in LHON Patients
The goal of this Clinical trial is to assess the safety and efficacy of GS010 at two dose levels on visual acuity and retinal mitochondrial activity in patients affected with ND4 Leber Hereditary Optic Neuropathy (LHON)
- Trial name
- REVISE (NCT07303296)
- Testing
- GS010 High dose, GS010 Low dose
- Where
- France
- Volunteers
- 14 people
- Sponsor
- GenSight Biologics
Macular Dystrophy
Correlation Between OCT and Mf-ERG Findings With BCVA in Patients With Macular Dystrophy
Correlation between optical coherence tomography and multifocal electroretinogram findings with visual acuity in patients with macular dystrophy.
- Trial name
- NCT07171541
- Testing
- OCT ,mFERG,VA test
- Volunteers
- 30 people
- Sponsor
- New Valley University
Myopia
Pilot Study of Neurovision to Improve Vision and Slow Myopia Progression in Children With Myopia
This is a pilot study to assess the effectiveness of Neurovision treatment in the improvement of vision in children being under-corrected and to assess the effectiveness of Neurovision treatment in slowing down myopia progression…
- Trial name
- NCT00348218
- Testing
- NeuroVision
- Where
- Singapore
- Volunteers
- 30 people
- Sponsor
- Singapore National Eye Centre
Pseudoxanthoma Elasticum
Evolution of Visual Impairment During Pseudoxanthoma Elasticum
Pseudoxanthoma elasticum is a disease whom frequency is estimated about 1/50000 to 1/100 000. There is a female preponderance with a sex-ratio of 2:1.
- Trial name
- NCT00555113
- Where
- France
- Volunteers
- 38 people
- Sponsor
- European Georges Pompidou Hospital
Amblyopia, Amblyopia, Anisometropic
Stochastic Resonance Applied to Amblyopia Training and the Plasticity of Brain
The prevalence of Taiwan's population with amblyopia is 2-5%. Amblyopia affects the daily life and learning ability. The human visual system can be developed normally with exposure of clear images on the retina, which often drive…
- Trial name
- NCT04213066
- Testing
- Portable tablet
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- National Cheng-Kung University Hospital
Corneal Transplant
Post Operative Visual Acuity for DSAEK and UT-DSAEK
To study the correlation between graft size in DSAEK (Descemet Stripping Automated Endothelial Keratoplasty) and UT (ultra thin)-DSAEK type corneal transplants to the visual acuity 6 months postoperatively.
- Trial name
- POVIAD (NCT03685851)
- Testing
- DSAEK type corneal transplant
- Volunteers
- 111 people
- Sponsor
- Centre Hospitalier Régional Metz-Thionville
Macular Psudohole
Foveal Cone Outer Segment Tips Line Defect in Macular Pseudohole
Evaluation of recovery in foveal cone outer segment tips line defect and visual acuity after surgery for macular pseudohole
- Trial name
- NCT01959802
- Testing
- Vitrectomy
- Where
- Japan
- Volunteers
- 22 people
- Sponsor
- Kyorin University
Amblyopia, Refractive Errors
Vision Screening for the Detection of Amblyopia
INTRODUCTION. Amblyopia is defined as the loss of visual acuity (VA) in one or both eyes, without any obvious structural or pathological anomalies.
- Conditions
- Amblyopia, Refractive Errors, Anisometropia, Strabismus
- Trial name
- NCT01430247
- Testing
- Amblyopia screening
- Where
- Croatia
- Volunteers
- 7,000 people
- Sponsor
- Mladen Busic
Visual Acuity
Visual Performance of Soft Contact Lenses With Myopia Control Optics
This is a multi-site, bilateral, dispensing, randomized, controlled, single-masked, 3x3 crossover study with a run-in period.
- Trial name
- NCT05141448
- Testing
- 1-Day Acuvue Moist, EMO-118, EMO-114
- Where
- United States
- Volunteers
- 79 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Neuroathletic Training, Adolescent Basketball Players
Neuroathletic Training in Adolescent Basketball Players
This randomized controlled study aims to investigate the effects of neuroathletic training on dynamic visual acuity, endurance, balance, and injury risk in adolescent basketball players.
- Conditions
- Neuroathletic Training, Adolescent Basketball Players, Dynamic Visual Acuity, Injury Risk
- Trial name
- NCT07584148
- Testing
- neuroathletic training
- Where
- Turkey (Türkiye)
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Pamukkale University
Visual Acuity
Evaluating Visual Acuity and Initial Fit Performance of Two Soft Contact Lenses
This is a multi-center, randomized, controlled, double-masked, 2x2 cross-over, non-dispensing study to compare visual acuity and lens fit performance.
- Trial name
- NCT04954833
- Testing
- EMO-200, EMO-118
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
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
Eye Change
Correlation Between Corneal Topographic Patterns and Refractive Status Of The Eye in Sohag City,Egypt
To evaluate corneal topographic pattern \& its correlation with refractive status of the eye .
- Trial name
- NCT05626075
- Testing
- Using Oculus Pentacam® which is s a rotating Scheimpflug camera. The rotational measuring procedure generates Scheimpflug images in three dimensions.
- Where
- Egypt
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Sohag University
Keratoconus
Preoperative Corneal Measurements Estimate the Corrected Distance Visual Acuity After Corneal Cross-linking
This study aims to determine if objective markers describing corneal optical density (COD), thinnest corneal thickness (TCT), anterior (ARC), and posterior (PRC) surface radii over the 3mm thinnest region of the cornea could…
- Trial name
- NCT06522789
- Testing
- corneal cross-linking procedure
- Where
- North Macedonia
- Volunteers
- 124 people, healthy volunteers welcome
- Sponsor
- Sistina Ophthalmology Hospital