Clinical trials: Functional Vision Changes
Sjogren's Syndrome, Dry Eye
Assessment of Inflammatory and Functional Changes in the Ocular Surface Associated With Dry Eye Disease
This project will examine the similarities and differences of the ocular surface and tear film in patients with Sjogren's syndrome related to dry eye, severe dry eye and those who do not have dry eye.
- Trial name
- JADE (NCT00809003)
- Where
- Canada
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Waterloo
Glaucoma, Ocular Hypertension
Long-term Vascular, Functional and Morphological Changes in Glaucoma and Ocular Hypertensive Patients
This is an observational study involving patients with glaucoma, those with ocular hypertension and healthy subjects. The aim of the study is the long term evaluation of functional, vascular and morphological changes in glaucoma…
- Trial name
- Ippocrate (NCT06827535)
- Where
- 5 sites in Italy
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- Mario Stirpe
Safety
FDA Phase IV - Commitment - Retinal Function Study
Vardenafil (Levitra) and Sildenafil (Viagra) are drugs that are marketed for use in patients with erectile dysfunction. The purpose of this study is to find out if there are any changes in the eye after taking at least 15 doses…
- Trial name
- NCT00461565
- Testing
- Sildenafil, Vardenafil (Levitra, BAY38-9456)
- Volunteers
- 63 people, healthy volunteers welcome
- Sponsor
- Bayer
Glaucoma
Functional Brain Changes of Primary Open-angle Glaucoma Patients
Structural and functional brain changes of primary open-angle glaucoma patient will be examined with fMRI. POAG patients and control group were examined with 3.0T magnetic resonance imaging.
- Trial name
- NCT02570867
- Where
- China
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Qing Zhou
Vision, Ocular
Determine Functions of Pinhole Glasses on the Eyes
Pinhole glasses which is using pinhole effect may induce a functional change on the eyes, including Distance and near visual acuity(DVA, NVA), Pupil size, DOF, Accomodative amplitude, CS, Visual field(VF), Stereopsis.
- Trial name
- PH001 (NCT02111356)
- Testing
- Phinhole glasses
- Where
- South Korea
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Chung-Ang University Hospital
Healthy
Effect of Simvastatin Withdrawal on Ocular Endothelial Function
Statins are drugs representing the most commonly prescribed medication for the treatment of hypercholesterolemia. In a recently published study, discontinuation of statin therapy in patients after acute myocardial infarction was…
- Trial name
- NCT02533141
- Testing
- Dynamic Vessel Analyzer (DVA), Laser Doppler Velocimetry (LDV), Simvastatin
- Where
- Austria
- Volunteers
- healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Visual Impairment, Amblyopia
Developing Better Computerised Vision Tests (CVTV)
Clinical vision measurements usually involve printed charts with an eye care professional interpreting patient responses to generate a score. Those scores determine the need for or outcome of treatment.
- Conditions
- Visual Impairment, Amblyopia, Macular Degeneration, Ophthalmic Disease
- Trial name
- CVTV (NCT06224751)
- Testing
- Near logMAR letter acuity, Near LogMAR word acuity, Red Green Stereoacuity
- Where
- United Kingdom
- Volunteers
- 550 people, healthy volunteers welcome
- Sponsor
- Guy's and St Thomas' NHS Foundation Trust
Vision Disorders
Modification in Cortical Activation in Pseudophakic Patients With Visual Difficulties After a Multifocal Implantation
This study will highlight differences in cortical activation between asymptomatic and symptomatic patients.
- Trial name
- PlainteIMF (NCT02529098)
- Testing
- fMRI
- Where
- France
- Volunteers
- healthy volunteers welcome
- Sponsor
- University Hospital, Toulouse
Ocular Surface Disease, Keratoconus
Changes of Visual Function, Ocular Surface Structures and Physiology After Long-Termed Contact Lens Wear
Our study is aimed to observe the long termed effect of contact lens wear on ocular surface, especially focused on visual function and ocular inflammation mediators.
- Conditions
- Ocular Surface Disease, Keratoconus, Irregular Astigmatism
- Trial name
- NCT02894489
- Testing
- corneal lenses, large diameter lenses
- Where
- Taiwan
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Glaucoma
Does Glaucoma Cause Loss of Brain Function?
The purpose of the study is to determine if glaucoma is associated with neurodegenerative changes in areas of the brain other than the occipital lobe.
- Trial name
- NCT01303939
- Testing
- magnetic resonance imaging (MRI) of the brain
- Where
- United States
- Volunteers
- 37 people, healthy volunteers welcome
- Sponsor
- Wills Eye
Healthy
Aqueous Outflow Facility Changes With Posture
Intraocular pressure (IOP) varies with body position, with a significant increase occurring from the seated to the supine position.
- Trial name
- NCT00571012
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Functional Vision Changes
Comparison of Objective and Subjective Changes Induced by Multiple Pinhole Glasses and Single Pinhole Glasses
Purpose of this study is to compare the ocular functional changes including pupil size, visual acuity, depth of focus, accommodative amplitude, visual field, contrast sensitivity, and stereopsis induced by multiple and single…
- Trial name
- NCT02572544
- Testing
- Trayner Pinhole Glasses (Trayner Glasses, Ivybridge Devon, U.K.)
- Where
- South Korea
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Chung-Ang University Hospital
Choroideremia
The Dark-Adapted Retinal Function Response in Choroideremia (DARC) Study
Choroideremia (CHM) is an inherited retinal disorder that causes progressive vision loss, ultimately leading to complete blindness.
- Trial name
- DARC (NCT05045703)
- Testing
- Vitamin A palmitate
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Duke University