Clinical trials: Visual Acuity
Visual Impairment, Amblyopia Suspect
DigiVis: Self-testing Vision App for Telephone Consultations
This trial aims to assess the accuracy and test-retest variability of a new digital app which enables community visual acuity testing without requirement of an trained examiner.
- Trial name
- NCT04482387
- Testing
- DigiVis visual acuity app
- Where
- United Kingdom
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Cambridge University Hospitals NHS Foundation Trust
Visual Acuity
Evaluation of a Daily Disposable Novel Multifocal Contact Lens in a Hyperopic Population
This is a 6-visit, subject-masked, multi-site, 2×3 crossover dispensing trial that will last approximately 2 - 4 months.
- Trial name
- NCT04567186
- Testing
- Investigational senofilcon A C3 Multifocal Lens, delefilcon A Multifocal Lens
- Where
- 7 sites in United States
- Volunteers
- 81 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Visual Acuity
Clinical Evaluation of Two Marketed Artificial Tears in Non-contact Lens Wearing Patients
This clinical study is a randomized, double-masked, cross-over, bilateral, 2 treatment x 2 period, dispensing 4-visit study with a 7-9 day washout period in between visits 2 and 3. The study will last approximately 3 months.
- Trial name
- NCT03466086
- Testing
- Test Eye Drops, Control Eye Drops
- Where
- United Kingdom
- Volunteers
- 57 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Visual Acuity
Evaluation of Three Daily Disposable Contact Lenses
This is a single-site, 8-visit, double-masked, cross-over study involving three marketed products as study lenses. Participants will be randomly assigned each lens type, which will be worn for approximately two weeks (12 +/- 2…
- Trial name
- NCT02568254
- Testing
- Lens 1 (etafilcon A), Lens 2 (nelfilcon A), Lens 3 (nesofilcon A)
- Where
- Canada
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
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
Characterizing Successful Myopic Multifocal Contact Lens Wearers
This will be a prospective, single group, single-arm, and bilateral dispensing study. Subjects will be assigned to a single study lens type to be worn bilaterally in daily wear, and daily disposable modality, for at least 6 hours…
- Trial name
- NCT04178772
- Testing
- Acuvue Moist Multifocal Contact Lens JJVC Marketed Contact Lens
- Where
- Canada
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Presbyopia
Volumetric Visual Fields at Intermediate and Near Distances in Presbyopic Patients Using Occupational and General-Purpose Progressive Addition Lenses
This single-center, randomized, double-blind, crossover clinical trial aims to compare the volumetric visual fields provided by two occupational progressive addition lenses (OPLs) optimized for intermediate and near vision in…
- Trial name
- CIVIUS2025PAL (NCT07617090)
- Testing
- OPAL PC assesment, OPAL Office assessment, PAL assesment
- Where
- 2 sites in Spain
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- University of Seville
Visual Impairment
Cell Phone Application for Vision Assessment
The purpose of this study is to evaluate how visual acuity assessed with Peek Acuity (a cell phone application to check visual acuity) among preschool and school-aged children 3 to less than18 years of age (1) compares to the…
- Trial name
- NCT03212222
- Testing
- Peek Acuity, Standard Visual Screening
- Where
- United States
- Volunteers
- 111 people, healthy volunteers welcome
- Sponsor
- Duke University
Visual Acuity
Effects of Multifocal Contact Lens on Ocular Tissue
The purpose of this study is to evaluate the etafilcon - PVP (multi-focal)
- Trial name
- NCT02345720
- Testing
- etafilcon - PVP (multi-focal)
- Where
- United Kingdom
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
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
Visual Acuity
Evaluation of Rotation With a Multifocal Toric Contact Lens
The study is a bilateral, single-masked, single-visit, non-dispensing 2x2 crossover study to confirm a finalized design of a prototype contact lens.
- Trial name
- NCT05433571
- Testing
- Test Lens
- Where
- 5 sites in United States
- Volunteers
- 102 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Visual Acuity
Ophthalmologic Examinations After Infusion of ZK200775
ZK 200775 is an antagonist at the α-Amino-3-hydroxy-5-methyl-4-isoxazolepropionate (AMPA) receptor and had earned attention a possible neuroprotective agent in cerebral ischemia.
- Trial name
- NCT00999284
- Testing
- ZK200775, Sodium Chloride
- Where
- Germany
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Charite University, Berlin, Germany
Cataract After, Astigmatism
Influence of Residual Astigmatism on Visual Acuity in Patients Undergoing Cataract Surgery With Trifocal Intraocular Lens Implantation
MAIN OBJECTIVE: To assess the influence of residual astigmatism on visual acuity in the different lens foci in patients operated on for cataracts with a trifocal intraocular lens implant.
- Conditions
- Cataract After, Astigmatism, IOL, Visual Acuity
- Trial name
- NCT04387721
- Testing
- Kind of trifocal IOL
- Where
- Spain
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Enrique Ordiñaga-Monreal, OD, MSc
Visual Acuity
Evaluation of a Digital Visual Acuity Device vs. Standard Visual Acuity Measurements
The purpose of this research is to validate and determine the accuracy of the experimental device when measuring visual acuity versus our standard visual acuity measurements and to gather voice recordings of letters to help build…
- Trial name
- NCT06431295
- Testing
- FaceScan
- Where
- United States
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Development and Health
Fish Oil Supplementation in Lactation
The main purpose of the study was to examine whether fish oil supplementation of lactating mothers affect infant development during first year of life, focusing on visual and mental development.
- Trial name
- NCT00266305
- Testing
- Fish oil (Dry n-3, BASF)
- Where
- Denmark
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- University of Copenhagen
Visual Acuity
Evaluation of Effect of Scatter on Visual Performance
This will be a 3-visit, single-site, randomized, single-masked, bilateral wear, non-dispensing, crossover study which will evaluate visual performance with different magnitudes of scatter.
- Trial name
- NCT07443215
- Testing
- ACUVUE® OASYS 1-Day Sphere, ACUVUE® OASYS Multifocal
- Where
- United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Visual Acuity
An Investigation of the Impact of Localized Topical Anesthesia of the Ocular Surface on End-of-day Contact Lens Discomfort
This is a controlled, randomized, subject-masked, 3x3 crossover, non-dispensing, contralateral study. Twenty subjects will be recruited based on their scores (with their habitual lenses) from the Contact Lens Dry Eye…
- Trial name
- NCT03733899
- Testing
- Local Anesthesia
- Where
- United Kingdom
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Visual Acuity
Evaluation of Multifocal Contact Lens Designs With and Without an HEV Blocker on Visual Function
This is a single-masked, bilateral, controlled, randomized, 2x2 crossover, non-dispensing clinical trial to characterize the effects of an HEV-Blocker on several measures of visual function in a presbyopic population.
- Trial name
- NCT04995055
- Testing
- JJVC Investigational Multifocal Contact Lens TEST Lens, ACUVUE® OASYS Multifocal
- Where
- United States
- Volunteers
- 37 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Visual Acuity
Evaluation of a Daily Disposable Novel Multifocal Contact Lens in a Myopic Population; Part 2
This is a 6-visit, subject-masked, multi-site, 2×3 crossover dispensing trial that will last approximately 2 - 4 months.
- Trial name
- NCT04615507
- Testing
- JJVC Investigational Multifocal Contact Lens, Dailies Total 1® Multifocal Contact Lens
- Where
- 6 sites in United States
- Volunteers
- 71 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Visual Acuity
Clinical Evaluation of Daily Disposable Etafilcon A Cosmetic Contact Lenses
This will be a randomized, double-masked, bilateral, cross-over, 2 treatment by 2 period dispensing study. There will be 4 visits. There will be a 2 to 5 day washout period between treatments.
- Trial name
- NCT04529109
- Testing
- etafilcon A investigational cosmetic lens 1, etafilcon A investigational cosmetic lens 2
- Where
- 4 sites in United States, Hong Kong
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.