Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 4, 2026, 12:37 AM EDT

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Showing 1–4 of 4 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Hodgkin Lymphoma
Interventions
Neurocognitive Evaluation, Quantitative Brain Imaging, Neurologic Evaluation, Health Questionnaire, Vascular Testing, Cardiopulmonary Exercise Testing, Echocardiography, Pulmonary Function Testing, Serum Biomarkers, Ophthalmology Examination
Other · Procedure
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
18 Years and older
Enrollment
416 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Memphis, Tennessee
Conditions
Myopia, Astigmatism
Interventions
Visibly Vision Test
Device
Lead sponsor
Visibly
Industry
Eligibility
22 Years to 55 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Harlingen, Texas
Completed Not applicable Interventional Accepts healthy volunteers

Clinical Study to Evaluate Effectiveness of Digital Refraction

NCT03502863
Conditions
Myopia, Astigmatism
Interventions
Digital refraction, Manual Refraction
Device · Other
Lead sponsor
Visibly
Industry
Eligibility
22 Years to 55 Years
Enrollment
102 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
3
States / cities
Fort Lauderdale, Florida • Nashville, Tennessee • Harlingen, Texas
Completed Not applicable Interventional Accepts healthy volunteers Results available

LFR-260 vs Traditional Phoropter in Visual Acuity Testing

NCT05259163
Conditions
Visual Acuity, Astigmatism, Anisometropia
Interventions
LFR-260 portable phoropter, Traditional phoropter (SOC)
Device
Lead sponsor
Evolution Optiks Limited
Industry
Eligibility
12 Years to 65 Years
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
2
States / cities
Worcester, Massachusetts • Oyster Bay, New York