Clinical trials: Ophthalmic Disorders
Alzheimer's Disease, Healthy Controls
Development of Eye-movement Based Biomarkers in Alzheimer's Disease
This study aims to develop and validate a sensitive and non-invasive eye-tracking software application. This study will obtain participant responses to brief cognitive tests designed to evaluate several key functions known to be…
- Trial name
- NCT05176704
- Testing
- Eye-Tracking
- Where
- 5 sites in Canada
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- McGill University
Cataract, Vision
Depth of Focus Comparison Between Acrysof IQ and Acrysof Natural IOLs
The purpose of this study is to evaluate and compare the depth of focus and visual outcomes after implantation of the Acrysof IQ SN60WF aspheric intraocular lens (IOL) and the Acrysof Natural SN60AT spherical IOL.
- Trial name
- NCT00886249
- Testing
- Acrysof IQ, Acrysof Natural IOL
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Aging
Heart Aging When Near Vision Difficulty Begins
Near vision deterioration during aging results from a decrease in accomodation amplitude (AA). Myocardial regeneration is limited, and cardiac aging is an independent risk factor for cardiovascular disease.
- Trial name
- NCT04362215
- Testing
- Subjective accomodation amplitude measurement
- Where
- Turkey (Türkiye)
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Kecioren Education and Training Hospital
Visual Fatigue
The Effect of 3D Autostereoscopic Video-game Play on the Visual Fatigue in Children
This study aims to examine the specific effect that 3D game play has on the control of the eyes horizontal movements. It will examine the youngest group of consumers this technology is marketed to, 7 to 11-year-olds and no…
- Trial name
- NCT02407015
- Testing
- Nintendo 3DS gameplay
- Where
- United Kingdom
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- University of Sheffield
Central Retinal Artery Occlusion
Safety and Efficacy After Selective Intra-arterial Thrombolysis for Central Retinal Artery Occlusion
Central retinal artery occlusion (CRAO) is an ophthalmic emergency which leads to devastating visual function defects and poor prognosis.
- Trial name
- NCT05562284
- Testing
- intra-arterial thrombolysis, conservative treatments
- Where
- China
- Volunteers
- 128 people, healthy volunteers welcome
- Sponsor
- Xinhua Hospital, Shanghai Jiao Tong University School of Medicine
Retinal Detachment
Short Term Postoperative Tamponade Using Perfluorocarbon Liquid for Giant Retinal Tears
The purpose of the article is, to investigate the efficacy and safety of perfluorocarbon liquid (PFCL) ,as a short term postoperative tamponade for treating retinal detachment ,associated with giant retinal tears.
- Trial name
- NCT01604616
- Where
- Israel
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Ziv Hospital
Dry Eye Disease
Study to Assess Safety, Tolerability, and Pharmacokinetics of Single and Multiple Ascending Doses of Palovarotene Ophthalmic Solution in Healthy Adult Subjects
Dry eye disease (DED) is a keratoconjunctive disorder that "is a multifactorial disease of the tears and ocular surface that results in symptoms of discomfort, visual disturbance, and tear film instability with potential damage…
- Trial name
- NCT04762355
- Testing
- Palovarotene, Vehicle
- Where
- Canada
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Clementia Pharmaceuticals Inc.
Pneumoperitoneum
Intra-ocular Pressure and Ventilation
Background: Positive pressure pneumoperitoneum (PP) may involve adverse pathophysiological changes, including increased intra-thoracic and ocular pressure, when combined with standard ventilation.
- Trial name
- pressure (NCT02731404)
- Testing
- HFJV ventilation, IPPV ventilation
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Western Galilee Hospital-Nahariya
Myopia
The Use of Atropine 0.01% in the Prevention and Control of Myopia (ATOM3)
Study of low dose atropine in preventing the onset and progression of myopia in high risk children with pre-myopia or low-myopia.
- Trial name
- NCT03140358
- Testing
- Atropine sulfate 0.01%
- Where
- Singapore
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Singapore National Eye Centre
Sjogren's Syndrome
Evaluation of Hand Functions in Newly Diagnosed Primary Sjögren's Syndrome
Hand functions are decreased in rheumatic diseases such as systemic sclerosis and rheumatoid arthritis. Sjögren's syndrome (SS) is a chronic systemic rheumatic disease characterized by lymphoplasmacytic infiltration of exocrine…
- Trial name
- NCT05115487
- Testing
- digital dynamometer
- Where
- Turkey (Türkiye)
- Volunteers
- 128 people, healthy volunteers welcome
- Sponsor
- Selcuk University
Dry Eye
Tear Osmolarity Over Time With Artificial Tears
The effect of artificial tears on tear osmolarity
- Trial name
- NCT01227226
- Testing
- Artificial tears
- Where
- United States
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Hom, Milton M., OD, FAAO
Glaucoma Eye, Macular Degeneration
Retinal Oxygenation Estimation Trial With Mantis Photonics Hyperspectral Camera
An explorative study of the Mantis Photonics hyperspectral camera for retinal imaging and estimation of retinal oxygenation. Primary objective: To evaluate the performance of the hyperspectral camera for non-invasive retinal…
- Conditions
- Glaucoma Eye, Macular Degeneration, Macula Abnormality, Retinal Detachment
- Trial name
- NCT05566626
- Testing
- Hyperspectral retinal image, Mydriacyl Ophthalmic Product
- Where
- Sweden
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Mantis Photonics AB
Alzheimer Disease
Identification of Diagnosis Biomarkers in the Tears of Alzheimer's Disease Patients: The COG-EYE Pilot Study
The diagnosis of Alzheimer's disease (AD) relies on the detection of protein biomarkers, particularly in cerebrospinal fluid (e.g., Aβ and phosphorylated Tau) or through brain imaging.
- Trial name
- COG-EYE (NCT06661564)
- Testing
- Basal tear collection for the analysis of metabo-lipidomic profiles and concentrations of protein biomarkers (Tau, phosphorylated Tau, Aβ 1-40, and Aβ 1-42), Collection of a blood sample (5 mL) for blood biomarkers analysis
- Where
- France
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- University Hospital, Tours
Presbyopia
Evaluation of the Performance of Investigational Contact Lenses in a Presbyopic Population
The objective of this study is to evaluate the performance of a novel multifocal lens system.
- Trial name
- NCT01763047
- Testing
- etafilcon A, lotrafilcon B
- Where
- 19 sites in United States
- Volunteers
- 298 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Blindness
Continued Study of Artificial Vision: Evaluation of the BrainPort® System and Investigation of Visual Ambulation
The purpose of this study is to evaluate the use of an artificial vision system called Brainport system in blind patients To investigate visual, and oculomotor (eye motion) mechanisms involved in the use of the Brainport system.
- Trial name
- BrainPort (NCT02643238)
- Testing
- BrainPort
- Where
- United States
- Volunteers
- 7 people, healthy volunteers welcome
- Sponsor
- Akron Children's Hospital
Glaucoma Open-Angle
Social History and Glaucoma Progression
The objective of this study is to predict of glaucoma progression. By imaging of the retinal nerve fiber layer RNFL, optic nerve head (ONH) and macular measurements using spectral-domain OCT (SD-OCT) instruments
- Trial name
- OCT (NCT06434155)
- Where
- Egypt
- Volunteers
- 1,584 people, healthy volunteers welcome
- Sponsor
- Assiut University
Intellectual Disability
Development and Validation of the Observatory Battery of Common Eye Disorders for Adults With Intellectual Disability
Background: Around 15% of the global population has some form of disability. Rights to obtain proper health care is an emphasis in the United Nationals Convention on the Right of People with Disability.
- Trial name
- NCT06737627
- Testing
- no intervention
- Where
- 2 sites in Taiwan
- Volunteers
- 1,400 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Corneal Sensation Reduced, Corneal Dystrophy
Defining the Operating Parameters for a Rebound-esthesiometer
The purpose of this study is to define the operating parameters for a new method to measure corneal sensitivity.
- Conditions
- Corneal Sensation Reduced, Corneal Dystrophy, Corneal Degeneration, Corneal Transplant Failure
- Trial name
- NCT04384094
- Testing
- Esthesiometer measurement
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Icare Finland Oy
Diabetes Mellitus, Diabetic Retinopathy
Evaluation of Early Retinal Nerve Injury in Type 2 Diabetes Patients Without Diabetic Retinopathy
The object of this study is to investigate the damage to the retinal nerve fiber layer (RNFL) and ganglion cell complex layer (GCL+) in diabetic patients without retinal microangioma as detected by fundus fluorescein angiography…
- Conditions
- Diabetes Mellitus, Diabetic Retinopathy, Nerve Injury
- Trial name
- NCT03970161
- Testing
- routine ophthalmic examination
- Where
- China
- Volunteers
- 720 people, healthy volunteers welcome
- Sponsor
- Third Affiliated Hospital, Sun Yat-Sen University
Refractive Error - Myopia Axial, Astigmatism
Refractive Accuracy of "2WIN" and Portable Autorefractors
Youth and some adults have photoscreening refractions and hand-held auto refraction before cycloplegia refraction during new and follow up eye examinations.
- Conditions
- Refractive Error - Myopia Axial, Astigmatism, Accomodation, Visual Impairment
- Trial name
- NCT04249505
- Testing
- "2WIN" Photoscreener, "Plusoptix A12", "Retinomax"
- Where
- United States
- Volunteers
- 708 people, healthy volunteers welcome
- Sponsor
- Alaska Blind Child Discovery
The first 1,020 results can be paged through. Add a filter or change the sort order to reach the rest.