Search clinical trials for: Visual Acuity Testing

Total 10000 results

Vanderbilt University Medical Center

Completed

Validity of at Home Visual Acuity Measurements for Telemedicine During Corona Virus (COVID-19) Pandemic

Visual Impairment

United States
Vienna Institute for Research in Ocular Surgery

Completed

Visual Acuity and Optical Coherence Tomography One Year After Peeling of Epiretinal Membranes

Epiretinal Membrane

Austria
Shahid Beheshti University of Medical Sciences

Unknown

Establishment of the National Registry for Inherited Retinal Dystrophy in Iran

Inherited Retinal Dystrophy Primarily Involving Sensory Retina | Inherited Retinal Dystrophy Primarily Involving Retinal Pigment Epithelium

Iran, Islamic Republic of
Xiangya Hospital of Central South University

Unknown

Clinical Study of Structural and Functional Evaluation of the Visual Pathway

Pituitary Adenoma | Visual Impairment | Neuroimaging | Sellar Tumor

China
Democritus University of Thrace

Unknown

Smart-TV Application for the Self Examination of the Distance Visual Acuity in Macular Edema Patients

Macular Edema | Refractive Errors | Low Vision

Greece
University of Basel

Completed

Objective Visual Acuity Measurement Using Suppression of the Optokinetic Nystagmus (OKN). (Speedwheel)

Visual Acuity

Switzerland
Theradex

Unknown

BBR 3464 in Treating Patients With Locally Advanced or Metastatic Pancreatic Cancer That Cannot be Treated With Surgery

Pancreatic Cancer

United States
Berkeley Eye Center

Completed

Visual Outcomes and Patient Satisfaction With Bilateral PanOptix Verses Bilateral Synergy

Pseudophakia

United States
Schiefer Ulrich

Completed

Comparison of the Freiburg Visual Acuity Test (FrACT) With the EDTRS- and Landoltring Charts (FEL)

Ophthalmologically Normal Subjects

Germany
University of Michigan
National Eye Institute (NEI)

Completed

Automated Quantitative Ulcer Analysis Study (AQUA)

Keratitis

India, United States
Massachusetts Eye and Ear Infirmary
Centers for Disease Control and Prevention

Recruiting

The Glaucoma and Retinopathy Screening Study (GRaSS)

Glaucoma

United States
Vanderbilt University Medical Center

Completed

Establishing a Normative Database in Pediatric Population of the Head-mounted visuALL Field Analyzer

Visual Field Defect, Peripheral

United States
Centre Hospitalier Régional Metz-Thionville

Recruiting

Prognosis of Posterior Lamellar Keratoplasty, an Observational Cohort Study (CORNEACOHORT)

Pseudophakic Bullous Keratopathy | Fuchs' Endothelial Corneal Dystrophy

France
Democritus University of Thrace

Completed

Visual Outcomes After Extended Depth of Focus Intraocular Lens Implantation With and Without Digital Assistance

Refractive Errors | Cataract | Presbyopia | Pseudophakia

Greece
Tan Tock Seng Hospital
Nanyang Technological University; Singapore Institute of Technology; Lee Kong...

Not yet recruiting

Development and Validation of an Automated Self-administered Visual Acuity System (AutoVA)

Visual Impairment
Moorfields Eye Hospital NHS Foundation Trust
King's College London; Cardiff University; University College, London; Newcastle... and other collaborators

Recruiting

Quality-Assured Follow-up of Quiescent Neovascular Age -Related maculaR dEgeneration by Non-medical Practitioners (FENETRE)

AMD

United Kingdom
Brennan Eadie

Not yet recruiting

Evaluation of a Novel Head-Mounted Device for Glaucoma Testing: A Proof-of-Concept Study

Glaucoma

Canada
Brennan Eadie

Suspended

Feasibility of Visual Field Testing With a Virtual Reality Headset

Glaucoma

Canada
University Hospital Inselspital, Berne
University of Bern

Completed

Visual Field Defect Estimation Using Sequentially Optimized Reconstruction Strategy on Healthy and Glaucoma Subjects

Glaucoma, Open-Angle

Switzerland
Cambridge University Hospitals NHS Foundation Trust

Completed

DigiVis: Self-testing Vision App for Telephone Consultations

Visual Impairment | Amblyopia Suspect

United Kingdom
Centre Hospitalier Universitaire Dijon

Terminated

Validation of a Prognostic Score for Good Visual Recovery at One Year Following Combined Surgery for Cataract and Idiopathic Epiretinal Membrane (PROCATMER)

Surgery for Cataract | Surgery for and Idiopathic Epiretinal Membrane

France
Queen's University, Belfast
University of Sussex

Unknown

Determining the Clinical Utility of Using Virtual Reality Headsets to Assess Visual Function in Those With Glaucoma.

Glaucoma

United Kingdom
Berkeley Eye Center

Completed

Intermediate Vision in Patients With Clareon IOLs Compared to Eyhance IOLs

Pseudophakia

United States
Democritus University of Thrace

Completed

Assessment of Visual Acuity in Refugee Population

Refractive Errors | Vision Disorders | Visual Acuity | Low Vision

Greece
DAVID HAUSER

Unknown

Scleral Fixation of BunnyLens With GoreTex Suture- Initial Results

Aphakia, Acquired

Israel
Siriraj Hospital

Completed

Effect of Presbyopic Correction Lens on Humphrey Visual Field Testing in Patients With Multifocal Intraocular Lens

Glaucoma | Cataract Senile

Thailand
Kubota Vision Inc.

Completed

Study Evaluating Retinal Health Monitoring System Visual Acuity Module.

Age Related Macular Degeneration

United States
Democritus University of Thrace

Unknown

Development of a Validated Chart for Intermediate Vision Assessment

Presbyopia | Astigmatism | Myopia | Hyperopia

Greece
Centre Hospitalier Régional Metz-Thionville

Recruiting

Effectiveness of PKP vs DSAEK in Terms of 2-year Postoperative Visual Acuity in Advanced BPK (DESPEK)

Penetrating Keratoplasty | Bullous Pseudophakic Keratopathy

France
Democritus University of Thrace

Recruiting

Identification of Minimum Focal Points in Vision Curve Formation

Refractive Errors | Cataract | Presbyopia | Pseudophakia

Greece
Rambam Health Care Campus

Recruiting

Rapid Computerized Visual Acuity Test

Refractive Errors | Cataract | Vision Disorders | Retinal Disease | Corneal Disease

Israel
Alaska Blind Child Discovery

Suspended

Autostereoscopic Dynamic Near Vision Testing (PDICheck)

Amblyopia | Color Vision Defects | Visual Suppression

United States
Duke University

Completed

Cell Phone Application for Vision Assessment

Visual Impairment

United States
Nantes University Hospital

Terminated

Study of Visual-spatial Attention by Eye Tracking as a Function of Central or Peripheral Visual Impairment (BEHAVE)

Central or Peripheral Visual Impairment

France
Mopsy Research

Recruiting

Comparative Functional Vision Outcomes: DAILIES TOTAL1 Toric vs. Spherical Lenses in Asian Astigmatic Patients

Comparative Effectiveness Research

Hong Kong
Essilor International

Not yet recruiting

Development of a New Device and Method to Assess the Degree of Myopia and/or Astigmatism in Myopic People (MDSW_DiVA2Rx)

Myopia

France
Fondation Ophtalmologique Adolphe de Rothschild

Recruiting

RESting-state Functional MRI in Patients With Optic Neuritis for ANticipation of reCovEry (RESONANCE)

Neuritis

France
Vienna Institute for Research in Ocular Surgery

Completed

Visual Acuity and Optical Coherence Tomography One Year After ILM-flap Transposition

Macular Hole

Austria
Moorfields Eye Hospital NHS Foundation Trust

Completed

Optimising Visual Acuity Measurement in Macular Degeneration (OPTIMISE)

Age Related Macular Degeneration

United Kingdom
Benha University

Completed

Accuracy of Mobile-Based Vision Charts.

Visual Spatial Processing

Egypt
The University of Hong Kong

Completed

Evaluation of Letters Versus Numbers (ELEVEN) Study (ELEVEN)

Visual Acuity

Hong Kong
University Health Network, Toronto

Unknown

The Results of Ahmed Valve Operations

Glaucoma

Canada
Trakya University

Not yet recruiting

Assessing the Turkish DDIVAT for Visual Acuity Measurement

Refractive Errors | Astigmatism | Myopia | Visual Acuity | Hyperopia
Democritus University of Thrace

Completed

Pre-symptomatic Screening of Visual Acuity in Pre-school Students

Refractive Errors | Vision Disorders | Visual Acuity | Low Vision

Greece
Chiang Mai University

Unknown

Repeatability and Concordance of VA Measured With ETDRS Numeric , Landolt C, and Letter Charts in Thai Individuals

Visual Nonspecific

Thailand
Shahid Beheshti University of Medical Sciences

Completed

Assessment of the Validity, Reliability, and Feasibility of Two Smartphone Applications for Testing the Visual Acuity

Blindness | Vision Impairment

Iran, Islamic Republic of
Shire

Completed

Screening Study to Identify Pediatric Patients With Hunter Syndrome Who Demonstrate Evidence of Central Nervous System (CNS) Involvement and Who Are Currently Receiving Treatment With Elaprase®

Hunter Syndrome

United States, United Kingdom
University Hospital, Brest

Completed

Wetsuit and Life Jacket Induced Effects on Spirometry and VO2 in Windsurfers (WINDSURF)

Ventilation | Exercise

France
Fondation Ophtalmologique Adolphe de Rothschild

Terminated

Prospective Analysis of "Genotype-phenotype" Correlations Observed in a Large Cohort of Patients With Hereditary Retinal Dystrophies - GEPHIRD (GEPHIRD)

Hereditary Retinal Dystrophies

France
Berkeley Eye Center

Completed

Maximizing Visual Outcomes With Eyhance IOLs

Pseudophakia

United States

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