Clinical trials: Visual Acuity
Visual Acuity
Visual Outcomes of a Segmental Refractive Multifocal Intraocular Lens
To evaluate visual outcomes of a segmental refractive multifocal intraocular lens (IOL) after cataract surgery.
- Trial name
- NCT03452969
- Testing
- Implantation of multifocal intraocular lens
- Where
- Germany
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- University Clinic Frankfurt
Myopia, Hyperopia
Comparing Low-cost Handheld Autorefractors - a Practical Approach to Measuring Refraction in Low Resource Settings
Study compares four portable vision measurement and eye-imaging technologies in terms of accuracy and time and ease of use with older adult (ages 40-100) participants in a developing-country setting (India).
- Trial name
- NCT03456245
- Testing
- Vision device validation
- Volunteers
- 205 people, healthy volunteers welcome
- Sponsor
- Harvard School of Public Health (HSPH)
Visual Impairment
Validity of at Home Visual Acuity Measurements for Telemedicine During Corona Virus (COVID-19) Pandemic
Prompted by the current COVID-19 pandemic, the American Academy of Ophthalmology has recommended the use of telemedicine to continue ophthalmic care while maintaining patient and provider social distancing.
- Trial name
- NCT04391166
- Testing
- Non invasive visual acuity testing
- Where
- United States
- Volunteers
- 108 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Visual Acuity
Clinical Evaluation of Fitting Investigational Contact Lenses Phase 2
This study is a single arm, non-randomized, open label, bilateral, non- dispensing clinical trial with only one visit. The Eye Care Providers will be provided with a fitting guide and will determine the initial study lens…
- Trial name
- NCT03168542
- Testing
- JJVC Fitting Guides
- Where
- United States
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Lenses, Intraocular
Visual Acuity After Using A New Monofocal Intraocular Lens Compared To Standard Monofocal Lens
This is a prospective comparative interventional clinical study, that took place from January 2021 to November 2021. Twenty patients (20) were enrolled in this study 10 patients in each group.
- Trial name
- NCT05430295
- Testing
- phacoemulsification, monofocal intraocular lens implantation
- Where
- Egypt
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Kasr El Aini Hospital
Visual Acuity
Initial Evaluation of Investigational Lenses Manufactured on a New Production Line
This study is a randomized, 4-visit, subject-masked, 2x3 bilateral crossover, dispensing trial. Each study lens will be worn bilaterally in a daily wear (DW) modality for at least 6 hours per day and 5 days per week for…
- Trial name
- NCT03679741
- Testing
- CONTROL Lens, TEST Lens
- Where
- 6 sites in United States
- Volunteers
- 126 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
Evaluation of Marketed Soft Contact Lenses
This is a bilateral, 2-week dispensing, non-randomized, controlled, single-masked, single-arm study to evaluate overall vision and comfort
- Trial name
- NCT05201807
- Testing
- Dailies Total 1 (DT1)
- Where
- 4 sites in United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Visual Acuity
Evaluation of Visual Acuity With a Reusable Toric Multifocal Contact Lens
The study is a bilateral, single-masked, single-arm, 4-visit dispensing study evaluating the visual performance of the study lenses.
- Trial name
- NCT05000164
- Testing
- Bausch + Lomb Ultra® Multifocal for Astigmatism
- Where
- 9 sites in United States
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Visual Acuity
Evaluation of Prototype Lenses With Experimental UV/HEV Blocker
This is a bilateral, 2-week dispensing, randomized, controlled, subject-masked, 2×2 crossover study to evaluate the clinical performance of prototype contact lenses with experimental UV/HEV-blocker.
- Trial name
- NCT04885296
- Testing
- TRP-200, JJVC Marketed Contact Lens
- Where
- 12 sites in United States
- Volunteers
- 228 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
OAG - Open-Angle Glaucoma, OHT - Ocular Hypertension
Effects of Netarsudil and Timolol on Retinal Blood Vessel Density and Visual Acuity
The purpose of this research study is to compare the effect of Netarsudil and Timolol on eye pressure and blood vessels of the back of the eye.
- Trial name
- NCT04064918
- Testing
- Netarsudil 0.02% QD, Timolol maleate 0.5% BID
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of California, San Diego
Myopia-Night Blindness
Evaluation of a Night Spectacle Correction Concerning an Improvement of Mesopic Vision Quality
Reduced quality of vision and glare in twilight or night are frequently mentioned complaints within the optometric examination. A reason for these problems could be a myopic refractive shift in dark light conditions, commonly…
- Trial name
- NCT02965534
- Testing
- Spectacle/Glasses
- Where
- 3 sites in Germany
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Applied Sciences Jena
Visual Acuity, Slit Lamp Biomicroscopy (Corneal Staining Assessment)
Clinical Evaluation of 3 Contact Lens Materials With 3 Solution Types
This is a multi-site, randomized, double-masked, contralateral, 2 treatment x 2 period crossover, dispensing, five-visit study to gain clinical insights of the study lenses and solutions.
- Trial name
- NCT03466060
- Testing
- Opti-Free : RevitaLens / Clear Care : RevitaLens, Opti-Free : RevitaLens / RevitaLens : Clear Care, Clear Care : RevitaLens/ Opti-Free : RevitaLens
- Where
- 5 sites in United States
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Visual Acuity
Clinical Study of Approved and Investigational Contact Lenses
This is a multi-site, 5-visit, double-masked, dispensing study comparing an investigational contact lens with currently-marketed contact lenses.
- Trial name
- NCT02708524
- Testing
- Senofilcon C Contact Lens, Comfilcon A Contact Lens, Lotrafilcon B Contact Lens
- Where
- 18 sites in United States
- Volunteers
- 554 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Visual Acuity
Clinical Evaluation of Etafilcon A With Ketotifen
This clinical study is a randomized, double-masked, bilateral, controlled, two-arm parallel group, multi-site, 1-Week, 2-visit dispensing study.
- Trial name
- NCT03388138
- Testing
- etafilcon A with ketotifen, 1-Day ACUVUE
- Where
- 6 sites in United States
- Volunteers
- 143 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Visual Acuity
Non-Invasive Assessment of Contact Lens Performance During Use of a Digital Display
This is a two-arm, open-label, bilateral dispensing clinical investigation. Eligible subjects will proceed to either a low-sphere or high-sphere arm based on refraction measurements in the baseline assessment.
- Trial name
- NCT04869189
- Testing
- JJVC Marketed Contact Lens
- Where
- United Kingdom
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Visual Acuity
Evaluating Soft Contact Lens Prototypes for Myopia Control
This is a multi-site, prospective, randomized, controlled, double-masked, four-arm-parallel-group, dispensing study. Each subject will be bilaterally fitted with one of four types of test articles and wear contact lenses of the…
- Trial name
- NCT03408444
- Testing
- EMO-114, EMO-116, EMO-118
- Where
- China
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Persons Issued From Amd Parents
Lutein Influence on Macula of Persons Issued From Amd Parents
Age-related macular degeneration (AMD) is a degenerative disease of the centre of the retina (named macula) and is the leading cause of blindness in industrialized countries.
- Trial name
- LIMPIA (NCT01269697)
- Testing
- Nutrof Total
- Where
- 2 sites in France
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- University Hospital, Bordeaux
Visual Acuity
Clinical Evaluation of a Reusable Multifocal Optical Design in a Presbyopic Population
This is a single-masked, randomized-controlled, dispensing clinical trial. A total of approximately 60 eligible myopic subjects will be targeted to complete the study.
- Trial name
- NCT03581825
- Testing
- senofilcon A Multifocal, senofilcon A Sphere, etafilcon A Multifocal
- Where
- 6 sites in United States
- Volunteers
- 63 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Visual Acuity, Refractive Errors
Assessing the Turkish DDIVAT for Visual Acuity Measurement
The goal of this observational methodological study is to validate the Turkish version of the DDIVAT visual acuity measuring device in a Turkish-speaking adult population.
- Conditions
- Visual Acuity, Refractive Errors, Myopia, Hyperopia
- Trial name
- NCT07240480
- Testing
- DDIVAT Visual Acuity Test (Turkish Version)
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Trakya University