Clinical trials: Visual Acuity
Visual Acuity
Evaluating Accommodative Responses of Soft Contact Lenses for Myopia Control
This is a bilateral, non-dispensing, randomized, controlled, double-masked, 7x7 cross-over study. Each subject will be bilaterally fitted with one of the 7 test articles in each of the 7 periods for a total of four visits.
- Trial name
- NCT03635528
- Testing
- Test Lens 1, Test Lens 2, Test Lens 3
- Where
- United States
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Keratoconus
Comparison of Partial Removal and Total Removal of the Corneal Epithelium on Keratoconus
The purpose of this study is to determine which surgical method makes less corneal haze
- Trial name
- NCT01809977
- Testing
- collagen cross-linking procedure (total removal), collagen cross-linking procedure (partial removal)
- Where
- Iran
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Isfahan University of Medical Sciences
Near Vision
Evaluation of Near Visual Acuity With ODYSIGHT, a Smartphone Based Medical App in Comparison to a Standardized Method
This study evaluates the level of agreement between visual parameters tested using OdySight, a mobile application, and standards in office methods.
- Trial name
- TIL-001 (NCT03457441)
- Testing
- Standards vision tests, OdySight medical application assessment
- Where
- France
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Tilak Healthcare
Macular Edema, Branch Retinal Vein Occlusion
Development of Intravitreal Ranibizumab by Determining the Pathogenesis of Macular Edema With Retinal Vein Occlusion
The purpose of this study is to evaluate the efficacy of intravitreal ranibizumab by determining the pathogenesis of macular edema, which cause a direct effect on visual function.
- Conditions
- Macular Edema, Branch Retinal Vein Occlusion, Central Retinal Vein Occlusion
- Trial name
- NCT02169648
- Testing
- ranibizumab
- Where
- 2 sites in Japan
- Volunteers
- 100 people
- Sponsor
- Tokyo Medical University
Neovascular Age-related Macular Degeneration
A Randomized, Double-masked, Multicenter,Sham-controlled, Safety and Efficacy Study of KH902 in Patients With Wet AMD
This study is designed to prove and confirm the efficacy and safety of multiple injections of human recombinant vascular endothelial growth factor receptor-Fc fusion protein (KH902) in patients with choroidal neovascularization…
- Trial name
- PHOENIX (NCT01436864)
- Testing
- Recombinant Human VEGF Receptor-Fc Fusion Protein
- Where
- 11 sites in China
- Volunteers
- 125 people
- Sponsor
- Chengdu Kanghong Biotech Co., Ltd.
Visual Outcome
The Purpose of This Clinical Study is to Evaluate Optimized Maximum Plus for Maximum Visual Acuity (MPMVA) Refractive Technique and Its Effect on Visual Performance.
This is a prospective, multicenter, parallel groups, non-interventional, examiner masked, comparative clinical study. Patients that participated in previous Hoya studies, and patients previous implanted with Hoya non-toric…
- Trial name
- NCT07595432
- Testing
- Non-Interventional Study
- Where
- Philippines
- Volunteers
- 140 people
- Sponsor
- Hoya Surgical Optics, Inc.
Visual Spatial Processing
Accuracy of Mobile-Based Vision Charts.
Analyzing the accuracy of mobile-based distant vision charts in clinical practice as an economic alternative for standard vision charts.
- Trial name
- NCT05251155
- Testing
- Distant best corrected visual acuity assessment
- Where
- Egypt
- Volunteers
- 288 people, healthy volunteers welcome
- Sponsor
- Benha University
Cataract
Tilt Prediction of Clareon Intraocular Lens
Misalignment of intraocular lenses can cause severe loss of visual quality. Different types of misalignments are known. Tilt, one type of intraocular lens misalignment is thought to play a negative role for the optical…
- Trial name
- NCT06595693
- Where
- Austria
- Volunteers
- 52 people
- Sponsor
- Johannes Kepler University of Linz
Visual Acuity
Evaluation of Visual Performance of Two Types of Cosmetic Contact Lenses
This is a single visit, brand-masked, non-dispensing, 2×2 bilateral crossover study. Each subject will be bilaterally fitted with one of the two test articles in each of the study periods in a random order with a 5-minute washout…
- Trial name
- NCT04534764
- Testing
- etafilcon A with cosmetic pattern, 1-Day Acuvue DEFINE Vivid Style
- Where
- United States
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Branch Retinal Vein Occlusion
Evaluation of the Usefulness of a PRN Regimen Using Ranibizumab for Macular Edema Due to Branch Retinal Vein Occlusion
Monthly intravitreal ranibizumab (IVR) during the first 6 month had great effect for macular edema with branch retinal vein occlusion (BVO) both in visual and anatomical outcome.
- Trial name
- NCT02478515
- Testing
- Ranibizumab
- Where
- Japan
- Volunteers
- 27 people
- Sponsor
- Nagoya City University
Keratoconus
Lamellar Transplant With Lyophilized Corneas
The goals of this study are to develop a lyophilization method for anterior lamellar transplants in Brasil and to make a comparative analysis among patients transplanted with lyophilized and optisol corneas
- Trial name
- NCT00409955
- Testing
- Lamellar transplant with lyophilized corneas
- Where
- Brazil
- Volunteers
- 20 people
- Sponsor
- Federal University of São Paulo
Operative Incision
70 vs 110 Degree Side-cut Angles in Femtosecond LASIK
The purpose of this study is to compare 70 and 110 degree side-cut angles on the same patient undergoing Femtosecond Laser-assisted in Situ Keratomileusis (FS-LASIK).
- Trial name
- NCT03122535
- Testing
- FS-LASIK 70 degree side-cut angle, FS-LASIK 110 degree side-cut angle
- Where
- United States
- Volunteers
- 115 people
- Sponsor
- University of Utah
Cataract
Clinical Outcomes With Bilateral Implantation of Odyssey IOLs
This study is a single center, ambispective study of visual outcomes after successful bilateral cataract surgery. Subjects will be assessed at least 3 months postoperatively at a single visit.
- Trial name
- NCT06550375
- Testing
- TECNIS Odyssey IOL
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- Mann Eye Institute
Vestibular Neuronitis, Vestibular Neuronitis, Bilateral
Recovery of Visual Acuity in People With Vestibular Deficits
The purpose of this study is to determine whether exercises relieve the symptoms of dizziness and imbalance in people with vestibular deficits and improves the ability to see clearly during head movements.
- Conditions
- Vestibular Neuronitis, Vestibular Neuronitis, Bilateral, Vestibular Schwannoma
- Trial name
- NCT00411216
- Testing
- Control exercises, gaze stabilization exercises
- Where
- United States
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- Emory 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.
Diabetic Macular Edema
Home- vs Hospital-based Care of Anti-VEGF Treatment for Diabetic Macular Edema: Non-inferiority RCT
Diabetic macular edema (DME) is a common cause of central visual loss in diabetic patients and a global public health burden around the world.
- Trial name
- DME HOME (NCT06610747)
- Testing
- Home-based Care Monitoring, Aflibercept 2Mg/0.05Ml Inj,Oph, Laser Treatment
- Where
- 4 sites in China
- Volunteers
- 308 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Normal Individuals
Normative Values for Instrumented Gaze Stabilization Test and Dynamic Visual Acuity Test Following Fatigue
The goal of this observational study is to learn how well normal individuals can see when they move their head before and after activity.
- Trial name
- NCT07847372
- Testing
- No intervention
- Where
- 2 sites in United States
- Volunteers
- 42 people
- Sponsor
- Cathey Norton
Non-Infectious Anterior Uveitis
Oftac Eye Drops (0.05% Tacrolimus Ophthalmic Emulsion) for the Treatment of Active Non-infectious Anterior Uveitis
The goal of this clinical trial is to assess the safety and tolerability of Oftac in active non-infectious anterior uveitis patients. The main questions it aims to answer are: 1.
- Trial name
- NCT07869953
- Testing
- Oftac: 0.05% tacrolimus ophthalmic emulsion
- Where
- 7 sites in Israel
- Volunteers
- 18 people
- Sponsor
- BioNanoSim Ltd.
Visual Acuity
Short-Term Clinical Comparison of Two Silicone Hydrogel Daily Disposable Contact Lenses
This will be a 2 period one-day, double-masked, randomized, repeated measures, non-dispensing, cross-over study where the main purpose of this study is to compare the performance of a new daily disposable silicone hydrogel lens…
- Trial name
- NCT03139578
- Testing
- Test 8.5BC, Test 9.0BC, Control 8.5BC
- Where
- 2 sites in United Kingdom
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Visual Acuity
Contact Lens Insertion and Removal in a Senior Subject Demographic
This will be a pilot, one-visit, open-label, non-dispensing study. Subjects will be given instructions and then attempt to insert and remove a contact lens in each eye.
- Trial name
- NCT03597178
- Testing
- senofilcon A
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.