Clinical trials: Ocular Pathologies
Presbyopia, Pseudophakia
Identification of Minimum Focal Points in Vision Curve Formation
The primary objective of this study is to identify how many focal points and at which distances are necessary for reliable visual curve formation and area of the curve (AoC) calculation using mathematical models and comparing the…
- Conditions
- Presbyopia, Pseudophakia, Cataract, Refractive Errors
- Trial name
- NCT06260852
- Testing
- Diagnostic Test: Visual Acuity Assessment
- Where
- Greece
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Democritus University of Thrace
Chronic Progressive External Ophthalmoplegia
MRI Study - Chronic Progressive External Ophthalmoplegia
The purpose of this study is to investigate the fraction of fat on a MRI scan of lower bag muscles, thighs and calves in patients with the mitochondrial disease chronic progressive external ophthalmoplegia (CPEO).
- Trial name
- CPEO (NCT02161848)
- Testing
- Magnetic Resonance Imaging
- Where
- Denmark
- Volunteers
- 133 people, healthy volunteers welcome
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
Autism Spectrum Disorder (ASD), Intellectual Disability
Emotion Intensity Modulates Intention in ASD
This study used eye-tracking to examine how emotional expression intensity (low/medium/high) influences intention understanding in children with ASD, PDD, and TD during a puzzle-search task.
- Trial name
- NCT07597655
- Where
- China
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of Electronic Science and Technology of China
Advanced Dry Macular Degeneration
Alpha MSH in Ocular Disease
The purpose of this study is gain a better understanding of a molecule called alpha melanocyte stimulating hormone (alpha MSH) and its potential role in your retinal disease.
- Trial name
- NCT03451578
- Testing
- Alpha MSH assay
- Where
- United States
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Duke University
Corneal Endothelial Cell Loss, Secondary Intraocular Lens
Anterior Chamber Versus Scleral Fixated Intraocular Lens: Long-term Vision and Safety Outcomes
This is a prospective comparative non-randomized cohort study to understand the long-term vision outcomes, safety, and stability of anterior chamber intraocular lenses (AC IOLs) vs. scleral-fixated intraocular lenses (SF IOLs).
- Trial name
- NCT04072978
- Testing
- Intraocular lens implantation
- Where
- Canada
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Sunnybrook Health Sciences Centre
Dry Eye Syndrome, Infectious Keratoconjunctivitis
Proteomic and Metabolomic Lacrimal Fingerprint in Diverse Pathologies of the Ocular Surface
This study aims to obtain the lacrimal fingerprint for frequent pathologies of the ocular surface and establish a normative base for each of them.
- Conditions
- Dry Eye Syndrome, Infectious Keratoconjunctivitis, Mucous Membrane Pemphigoid, Allergic Conjunctivitis
- Trial name
- EML-MSO (NCT04198740)
- Testing
- Tear sample collection via Schirmer strip and subsequent analysis by mass spectrometry
- Where
- 2 sites in Canada
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Centre hospitalier de l'Université de Montréal (CHUM)
Corneal Neovascularization, Neutrophils
Correlation Between a Novel Subset of Neutrophil and Corneal Neovascularization.
The purpose of this study is to determine whether a novel subset of neutrophils is correlated with corneal neovascularization in the patients suffered from ocular chemical injury.
- Trial name
- NCT05659940
- Where
- China
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Healthy, Dystonia
Abnormal Movements, Cerebellum and Sensorimotor : Oculomotor Study
Dystonia is a movement disorder characterized by involuntary, sustained, often repetitive muscle contractions of opposite muscles that lead to abnormal twisting movements or odd postures.
- Conditions
- Healthy, Dystonia, Parkinson Disease
- Trial name
- MOUVADOC (NCT01495897)
- Testing
- Tracking eye movement, Tracking eye movement under deep brain stimulation
- Where
- France
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Institut National de la Santé Et de la Recherche Médicale, France
Diplegia, Spastic
Eye-Hand Coordination in Children With Spastic Diplegia
This study will examine how the brain controls eye-hand coordination (visuomotor skills) in children with spastic diplegia and will determine whether impairment of this skill is related to the learning difficulties in school that…
- Trial name
- NCT00024791
- Where
- United States
- Volunteers
- 144 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Corneal Neovascularization
Effectiveness and Safety of Topical Bevacizumab (Avastin) for Treatment of Corneal Neovascularization
Purpose: To determine the efficacy and safety of one commonly used VEGF inhibitor, bevacizumab (Avastin, Genentech), as a topical agent for the treatment of corneal neovascularization.
- Trial name
- NCT00512876
- Testing
- Bevacizumab (Avastin)
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Walter Reed Army Medical Center
Blindness
Brain Plasticity of Verbal Memory in the Blind
This study will examine whether blind people develop changes in the brain that improve memory function. Previous studies have shown that blind people, on average, perform better in memory tasks than sighted people.
- Trial name
- NCT00059189
- Testing
- Magstim Rapid Magnetic Stimulator
- Where
- United States
- Volunteers
- 85 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Abnormal Vitreous Humor Morphology, Abnormal Choroid Morphology
Accuracy of the Red Reflex Test in the Pediatric Population
This study is designed to investigate the sensitivity and specificity of the Red Reflex Test (RRT), with and without dilation, for early detection of ocular abnormalities in children and newborns.
- Conditions
- Abnormal Vitreous Humor Morphology, Abnormal Choroid Morphology, Optic Nerve Diseases, Retinal Disease
- Trial name
- NCT04125043
- Testing
- Direct ophthalmoscope
- Where
- United States
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- Children's National Research Institute
Stroke, Ischemic, Hemianopia, Homonymous
Statistical Learning as a Novel Intervention for Cortical Blindness
This project aims to develop a novel visual training paradigm for use in visually-intact participants and those sufferings from stroke-induced visual impairments.
- Conditions
- Stroke, Ischemic, Hemianopia, Homonymous, Hemianopsia, Occipital Lobe Infarct
- Trial name
- NCT06578117
- Testing
- Vision Training and Learning Task
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Rochester
Cataract, Traffic Accident
Validation of Mesopic and Photopic Contrast Vision Tests With Respect to Nighttime Driving Ability
A) The main purposes of this study are (i) to develop a related virtual reality (VR) environment in order to judge the nighttime driving ability under mesopic and under glare conditions (ophthalmologically healthy subjects and…
- Conditions
- Cataract, Traffic Accident, Vision Disorders, Driving Impaired
- Trial name
- ContrastVal (NCT03169855)
- Testing
- Slit lamp (LOCS III Score)
- Where
- Germany
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Aalen University
Visual Suppression, Amblyopia
Autostereoscopic Dynamic Near Vision Testing
This is an analysis of tests of near vision. Visual perception testing using a novel program on an interactive three dimensional electronic device: Autostereoscopic dynamic near games for monocular visual acuity, stereopsis and…
- Conditions
- Visual Suppression, Amblyopia, Color Vision Defects
- Trial name
- PDICheck (NCT04606355)
- Testing
- Visual Acuity, stereopsis, Color vision
- Where
- United States
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Alaska Blind Child Discovery
Vision Disorders
Optical Coherence Tomography Measurements in Eyes With Band Atrophy
The study is designed to evaluate the ability of optical coherence tomography and VCC scanning laser polarimetry to measure and identify the pattern of band atrophy of the optic nerve in patients with long standing chiasmal…
- Trial name
- NCT00395122
- Testing
- Retinal nerve fiber layer and macular thickness measurements
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Sao Paulo
Overweight, Obesity
A Study to See How Safe a New Medicine (NNC6989-0001) is in Healthy People Living With Overweight or Obesity
This study is testing a new medicine, NNC6989-0001, to test it is safe and tolerable for healthy people living with overweight or obesity.
- Trial name
- NCT07437079
- Testing
- NNC6989-0001
- Where
- United States
- Volunteers
- 132 people, healthy volunteers welcome
- Sponsor
- Novo Nordisk A/S
Macula; Degeneration, Aging
Impact of Grape Powder Consumption on Eye Health and Glycemic Status in Singapore Older Adults
The purpose of this study is to understand the impacts of regular consumption of freeze-dried table grape powder on eye health and regulation of advanced glycation end products in Singapore older adults.
- Conditions
- Macula; Degeneration, Aging, Advanced Glycation End Products
- Trial name
- NCT06349304
- Testing
- Freeze-dried table grape powder
- Where
- Singapore
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- National University of Singapore
Age-related Macular Degeneration
Visual Remapping to Aid Reading With Field Loss
Reading performance in patients with Central Vision Loss and age matched controls with artificial scotomas will be measured with and without different kinds of remapping of missing text to different parts of the visual field.
- Trial name
- NCT03848663
- Testing
- Traditional Remapping, Personalized Remapping
- Where
- United States
- Volunteers
- 108 people, healthy volunteers welcome
- Sponsor
- University of Minnesota
Low Vision, Fall
Increasing the Accessibility of a Falls Prevention Intervention for Community Dwelling Older Adults With Low Vision
This study serves to test a previously evaluated falls prevention intervention recommended by the Centers for Disease Control and Prevention, entitled the Study of Accidental Falls in the Elderly (SAFE) Health Behavior and…
- Trial name
- NCT03028493
- Testing
- Original SAFE Intervention, Adapted SAFE Intervention
- Where
- United States
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- Sarah Blaylock