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ClinicalTrials.gov public records Last synced Oct 17, 2026, 11:42 PM EDT

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Showing 73–96 of 263 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Spectacles Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Clinical Assessment of a Customized Free-form Progressive Addition Lens Spectacle

NCT01234207
View directory record Official record
Conditions
Presbyopia
Interventions
Standard, non-free-form, non-customized PAL spectacles, Individually customized free-form surfaced PAL spectacles
Device
Lead sponsor
University of California, Berkeley
Other
Eligibility
39 Years to 80 Years
Enrollment
95 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Apr 18, 2017 · Synced Oct 17, 2026, 11:42 PM EDT
Recruiting Not applicable Interventional

Visual Influences on Vestibular Adaptation

NCT07380256
View directory record Official record
Conditions
Vestibular Hypofunction, Binocular Vision Abnormalities, Reduced Vision
Interventions
StableEyes: Incremental Vestibulo-Ocular Reflex Adaptation (IVA)
Device
Lead sponsor
Emory University
Other
Eligibility
18 Years to 60 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 17, 2026 · Synced Oct 17, 2026, 11:42 PM EDT
Completed Not applicable Interventional Results available

Base-in Prism Spectacles for Intermittent Exotropia

NCT03998670
View directory record Official record
Conditions
Exotropia Intermittent
Interventions
Prism Glasses, Non-Prism Glasses
Device
Lead sponsor
Jaeb Center for Health Research
Other
Eligibility
3 Years to 13 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
28
States / cities
Birmingham, Alabama • Glendale, Arizona • Little Rock, Arkansas + 23 more
Source: ClinicalTrials.gov public record
Updated Oct 4, 2023 · Synced Oct 17, 2026, 11:42 PM EDT
Completed Phase 2Phase 3 Interventional

The Use of SennaS for Prevention of Post-operative Constipation After Urogynecologic Surgery

NCT00571896
View directory record Official record
Conditions
Constipation
Interventions
Senna+ docusate, placebo
Drug
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years and older · Female only
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 5, 2012 · Synced Oct 17, 2026, 11:42 PM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Effects of Optical Blur on Performance and Comfort of Computer Users

NCT00318045
View directory record Official record
Conditions
Refractive Error
Interventions
Eyeglass lenses
Device
Lead sponsor
Vision Council of America
Other
Eligibility
19 Years and older
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Apr 25, 2006 · Synced Oct 17, 2026, 11:42 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

A Randomized Trial of Base-in Prism Reading Glasses Convergence Insufficiency in Children

NCT00347581
View directory record Official record
Conditions
Convergence Insufficiency
Interventions
Base-in prism glasses for reading, Placebo reading glasses
Procedure
Lead sponsor
Pennsylvania College of Optometry
Industry
Eligibility
9 Years to 18 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2004
U.S. locations
10
States / cities
Birmingham, Alabama • Fullerton, California • Fort Lauderdale, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Jul 4, 2006 · Synced Oct 17, 2026, 11:42 PM EDT
Completed Not applicable Interventional Results available

Clinical Trial to Improve the Magnetic Levator Prosthesis

NCT03818204
View directory record Official record
Conditions
Blepharoptosis, Ptosis, Eyelid, Myasthenia Gravis, Stroke, Traumatic Brain Injury
Interventions
Magnetic Levator Prosthesis (MLP)
Device
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
4 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 13, 2025 · Synced Oct 17, 2026, 11:42 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Impact of Sleep Extension in Adolescents

NCT03500458
View directory record Official record
Conditions
Insulin Sensitivity, Sleep, Dietary Habits
Interventions
Sleep Extension
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
14 Years to 19 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2025
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 1, 2024 · Synced Oct 17, 2026, 11:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effectiveness of Orthokeratology in Myopia Control

NCT03465748
View directory record Official record
Conditions
Myopia
Interventions
OrthoK
Device
Lead sponsor
Illinois College of Optometry
Other
Eligibility
6 Years to 13 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 28, 2023 · Synced Oct 17, 2026, 11:42 PM EDT
Terminated Not applicable Interventional

Netflix Streaming Services in the Operating Room During Total Knee Replacement - a Feasibility Study

NCT04469881
View directory record Official record
Conditions
Surgery
Interventions
VR
Behavioral
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 4, 2023 · Synced Oct 17, 2026, 11:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Correction of Farsightedness in Children Study

NCT00472212
View directory record Official record
Conditions
Hyperopia, Farsightedness
Interventions
Spectacles, Control
Device
Lead sponsor
Ohio State University
Other
Eligibility
6 Years to 11 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2008
U.S. locations
4
States / cities
Chicago, Illinois • New York, New York • Columbus, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 18, 2023 · Synced Oct 17, 2026, 11:42 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Facilitating Adjustment to Simulated Jet Lag

NCT05382923
View directory record Official record
Conditions
Circadian Rhythm Sleep Disorder, Jet Lag Type
Interventions
Bright Light, Bright Light + Exercise + Melatonin, Control
Behavioral
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 45 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated May 19, 2022 · Synced Oct 17, 2026, 11:42 PM EDT
Completed Not applicable Interventional

Argus II/ORCAM Device Study

NCT03248388
View directory record Official record
Conditions
Retinitis Pigmentosa
Interventions
Argus II Eyeglasses, ORCAM
Device
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 13, 2022 · Synced Oct 17, 2026, 11:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Glasses for Adolescent Delayed Sleep-Wake Phase Disorder

NCT04378933
View directory record Official record
Conditions
Delayed Sleep-Wake Phase Disorder
Interventions
Amber Glasses, Clear Lens Glasses
Device
Lead sponsor
Mayo Clinic
Other
Eligibility
14 Years to 17 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
2
States / cities
Chicago, Illinois • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 6, 2023 · Synced Oct 17, 2026, 11:42 PM EDT
Completed Not applicable Interventional Results available

Assessment of Daily Disposable Silicone Hydrogel Lens Wear

NCT01093625
View directory record Official record
Conditions
Myopia
Interventions
Narafilcon B Contact Lens, Spectacles
Device
Lead sponsor
Johnson & Johnson Vision Care, Inc.
Industry
Eligibility
15 Years to 39 Years
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 19, 2018 · Synced Oct 17, 2026, 11:42 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Effects of Different Add Powers on the Comfort and Productivity of Computer Users With Fixed or Free Head Movement

NCT00317525
View directory record Official record
Conditions
Refractive Errors, Asthenopia
Interventions
Spectacle Lenses
Device
Lead sponsor
American Optometric Association
Other
Eligibility
40 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 11, 2006 · Synced Oct 17, 2026, 11:42 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Neural Correlates of Real World Spatial Navigation in Humans

NCT04874220
View directory record Official record
Conditions
Memory, Delayed
Interventions
Deep Brain Stimulation, Memory and spatial navigation tasks, Physiological Signals, Questionnaires and Assessments
Device · Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years to 90 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
2
States / cities
Los Angeles, California • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 17, 2026, 11:42 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Is Y-Balance Test Predictive of Concussion

NCT05344703
View directory record Official record
Conditions
Concussion, Brain, Concussion; Eye
Interventions
Y Balance Plus Visual Perturbations, Y balance
Device · Diagnostic Test
Lead sponsor
Arkansas Colleges of Health Education
Other
Eligibility
11 Years to 19 Years
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
2
States / cities
Fort Smith, Arkansas
Source: ClinicalTrials.gov public record
Updated Apr 25, 2022 · Synced Oct 17, 2026, 11:42 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Maximizing Visual Outcomes With Eyhance IOLs

NCT05611073
View directory record Official record
Conditions
Pseudophakia
Interventions
Visual Acuity, Biometric Data Collection, Patient Questionnaire
Diagnostic Test · Other
Lead sponsor
Berkeley Eye Center
Other
Eligibility
40 Years and older
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 23, 2025 · Synced Oct 17, 2026, 11:42 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Differences in Corneal Structure and Function in Patients With Sjogrens vs. Non-Sjogrens Dry Eye

NCT06364657
View directory record Official record
Conditions
Sjogren's Syndrome, Dry Eye, Neurotrophic Keratitis
Interventions
Eye Exam
Diagnostic Test
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 15, 2025 · Synced Oct 17, 2026, 11:42 PM EDT
Recruiting Not applicable Interventional

Type 1 Diabetes REst for Metabolic Health

NCT06627504
View directory record Official record
Conditions
Type 1 Diabetes (T1D), Sleep Health
Interventions
Sleep Health and Circadian Timing Intervention
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
14 Years to 19 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Oct 17, 2026, 11:42 PM EDT
Completed Not applicable Interventional

Physiological Investigations of Movement Disorders

NCT01019343
View directory record Official record
Conditions
Parkinson's Disease, Tourette's Syndrome, Tic Disorders, Dystonia, Movement Disorders
Interventions
Transcranial Direct Current Stimulation (tDCS), Eye-tracking Device, Pulsed vibrator, Gait Trainer Treadmill (GTT), Standard psychiatric scales SCID-I, YBOCS and SCI-OBS-lifetime and cognitive scales MMSE and MOCA, iMobility, QMAT, Treadmill Test, Arm Intellistretch Device, Transcranial Sonography (TCS), Behavioral tasks, TMS single/paired pulse, MEG, EEG, MRI techniques, Peripheral Nerve Stimulation, EMG, Trancutaneous spinal direct current stimulation (tsDCS)
Procedure · Device · Other + 1 more
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years and older
Enrollment
1,273 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 8, 2026 · Synced Oct 17, 2026, 11:42 PM EDT
Completed Not applicable Interventional Results available

Symfony Toric Intraocular Lens Visual Outcomes

NCT03082599
View directory record Official record
Conditions
Cataract Bilateral, Astigmatism Bilateral
Interventions
Presbyopia and astigmatism correcting intraocular lens
Device
Lead sponsor
Carolina Eyecare Physicians, LLC
Other
Eligibility
40 Years to 99 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
4
States / cities
Stillwater, Minnesota • Garden City, New York • Mt. Pleasant, South Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2020 · Synced Oct 17, 2026, 11:42 PM EDT
Completed Not applicable Interventional Results available

Does Using a Low Vision Aid Device Improve Quality of Life in Glaucoma Patients?

NCT02526680
View directory record Official record
Conditions
Glaucoma
Interventions
OrCam
Device
Lead sponsor
Wills Eye
Other
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 13, 2018 · Synced Oct 17, 2026, 11:42 PM EDT