Clinical trials: Visual Functions
Ocular Albinism (OA), Oculocutaneous Albinism (OCA)
The Effects of Lutein and Zeaxanthin Supplementation on Vision in Patients With Albinism
The LUVIA study is a randomized placebo-controlled trial designed to investigate the effects of lutein and zeaxanthin supplementation on macular pigment and visual function in ocular or oculocutaneous albinism.
- Trial name
- LUVIA (NCT02200263)
- Testing
- Lutein plus Zeaxanthin
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Johns Hopkins University
Visual Acuity
The Effects of Contact Lenses With UV/HEV-Filter on Visual Function
This is a 2-phase, single-site, non-dispensing, randomized, controlled, double-masked, 2x2 crossover study to objectively measure potential benefits of a new UV/HEV filter using psychophysical testing techniques.
- Trial name
- NCT05601544
- Testing
- ACUVUE OASYS 1-Day, ACUVUE OASYS MAX 1-Day, ACUVUE OASYS Multifocal
- Where
- United States
- Volunteers
- 145 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Anterior Uveitis, Posterior Uveitis
Quality of Life and Visual Function in Uveitis Patients
The purpose of this study was to measure the quality of visual function and quality of daily living in patients with anterior, posterior, and panuveitis.
- Conditions
- Anterior Uveitis, Posterior Uveitis, Panuveitis, Uveitis
- Trial name
- NCT00407316
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- The New York Eye & Ear Infirmary
Eye Fatigue
Eye Care Benefits of Anti-Aging Compound Capsules in Healthy Adults
This study aims to evaluate the eye care benefits of anti-aging compound capsules in healthy adults. Participants will consume anti-aging compound capsules containing botanical extracts, omega-3 fatty acids, vitamins, minerals…
- Trial name
- Eye Care (NCT07657936)
- Testing
- Anti-Aging Compound Capsules
- Where
- Taiwan
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- China Medical University Hospital
Keratoconus, Stable
Perceptual Learning Improve Visual Function in Patients With Keratoconus
This project aims at non-progressive keratoconus patients with unsatisfactory visual acuity corrected by spectacles, and explores the effectiveness and maintenance of visual acuity improved by perceptual learning.
- Trial name
- KPL (NCT05220904)
- Testing
- spectacles, perceptual learning
- Where
- China
- Volunteers
- 35 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Visual Pathway Disorder, Glaucoma
Assessment of Visual Function in Ophthalmic Disorders Using Virtual Visual Field Analysis
1. To evaluate the accuracy of virtual visual field (VVF) headsets equipped the standard visual field software in its ability to assess visual function in various retinal, glaucoma and neuro-ophthalmic disorders by comparing…
- Conditions
- Visual Pathway Disorder, Glaucoma, Retinal Disease
- Trial name
- proVVF (NCT04110015)
- Testing
- virtual visual field
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- New York City Health and Hospitals Corporation
Visual Impairment, Stroke
Re-Orchestration of Interregional Oscillatory Activity to Promote Visual Recovery
This project assesses the effect of bifocal cross-frequency transcranial alternating current stimulation (tACS) combined with visual training to improve visual recovery and orchestrated oscillatory activity in stroke patients…
- Conditions
- Visual Impairment, Stroke, Parkinson Disease
- Trial name
- R4V (NCT05220449)
- Testing
- Cross-frequency dual-site tACS
- Where
- Switzerland
- Volunteers
- 30 people
- Sponsor
- Ecole Polytechnique Fédérale de Lausanne
Healthy Elderly
Innovative Hand Rehabilitation System With Synchronized Contralateral Haptic Feedback
Previous studies have found that graded motor imagery (GMI) training can provide continuous activation of the cerebral cortex compared to traditional rehabilitation therapy.
- Trial name
- NCT07077460
- Testing
- TIPr, Mirror Visual Feedback Device, Mirror Visual Feedback Device(Blocked mirror)
- Where
- Taiwan
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- National Cheng-Kung University Hospital
Glioblastoma
Surgically Induced Neurological Deficits in Glioblastomas (SIND Study)
This study provides a work package for a larger programme of research developing Precision Surgery for Glioblastomas by developing individualised treatment volumes for surgery and radiotherapy.
- Trial name
- SIND (NCT04007185)
- Testing
- Maximal, safe resection of brain tumour
- Where
- United Kingdom
- Volunteers
- 52 people
- Sponsor
- Cambridge University Hospitals NHS Foundation Trust
Diabetes (DM), Diabetes Complication
Feasibility of Home Monitoring of Visual Function in DR
Diabetes is a serious condition where patients can develop complications in their body including their eyes which can lead to sight loss.
- Conditions
- Diabetes (DM), Diabetes Complication, Diabetes (Insulin-requiring, Type 1 or Type 2), Diabetic Retinopathy (DR)
- Trial name
- NCT07386613
- Testing
- Okko Health App
- Where
- 3 sites in United Kingdom
- Volunteers
- 55 people
- Sponsor
- Queen's University, Belfast
Surgical Hemostasis
Comparative Study Between the Effect of Dexmedetomidine ,Midazolam or Bupivacaine Packing During FESS on Surgical Field Visualization
The goal of this interventional study is to compare the nasal packing with dexmedetomidine .midazolam or bupivacaine on surgical field visualization during FESS .
- Trial name
- FESS (Function (NCT07013955)
- Testing
- Saline, Dexmedetomidine, Midazolam
- Where
- Egypt
- Volunteers
- 144 people
- Sponsor
- Minia University
Behavior and Behavior Mechanisms
The Effects of a Zeaxanthin Intervention on Visuomotor Function
This study was designed to test whether two zeaxanthin formulations (supplements containing different nutritional compounds with zeaxanthin and omega fatty acids being the primary ingredients of interest) influenced visual motor…
- Trial name
- NCT02017418
- Testing
- zeaxanthin, combinatory supplement
- Where
- United States
- Volunteers
- 102 people, healthy volunteers welcome
- Sponsor
- University of Georgia
Brain Injury, Chronic
Investigating the Role of the Premotor Cortex in Higher Cognitive Functions
This project aims at understanding better the role of the frontal lobe of the brain in our capacity to perceive visual information consciously, and also, in our capacity to perceive others' actions.
- Trial name
- NCT00842413
- Where
- France
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Ophthalmological Disorder
Effect of Binocular Treatment Using a Dichoptic Reading Application in Children With Convergence Insufficiency.
Convergence insufficiency is a common disorder of binocular vision that can appear as early as childhood after visual effort, and is often associated with a variety of symptoms such as eyestrain, headaches, blurred vision and…
- Trial name
- ALEDICE (NCT06465615)
- Testing
- Self-education with dichoptic reading on tablet, Conventional orthoptic rehabilitation
- Volunteers
- 26 people
- Sponsor
- University Hospital, Montpellier
Cataract Bilateral, Lens, Intraocular
Evaluation of Visual Function After Bilateral Implantation of EDOF IOLs
Since intermediate vision is becoming increasingly important in our day-to-day tasks, a new IOL was introduced (Acunex Vario) with this objective in mind.
- Conditions
- Cataract Bilateral, Lens, Intraocular, Lens Implantation, Intraocular, Pseudophakia
- Trial name
- Vario-NL (NCT05335408)
- Testing
- Acunex Vario intraocular lens, Alcon AcrySof IQ Vivity intraocular lens
- Where
- Netherlands
- Volunteers
- 32 people
- Sponsor
- Maastricht University Medical Center
Corneal Disease, Pterygium
Corneal Epithelium Repair and Therapy Using Autologous Limbal Stem Cell Transplantation
Corneal disease is a leading cause of blindness in the world. A shortage of corneal donor tissue has prevented many patients from regaining vision.
- Conditions
- Corneal Disease, Pterygium, Myopia, Hyperopia
- Trial name
- NCT02148016
- Testing
- LSCs and amniotic membrane (Modified Technique), Amniotic membrane only (Traditional Technique), PRK, LSCs, and amniotic membrane (Modified Technique)
- Where
- China
- Volunteers
- 30 people
- Sponsor
- Sun Yat-sen University
Stroke, Stroke Patients
Combination of Force Control Training and Mirror Visual Feedback Device on Stroke Patients on Brain Activation and Hand Function
Global elderly population continues to grow. Among the diseases caused by aging, stroke accounts for the highest incidence, and the number of stroke patient is increasing year-by-year.
- Trial name
- NCT07150325
- Testing
- TIPr, Mirror Visual Feedback Device, Mirror Visual Feedback Device(Blocked mirror)
- Where
- Taiwan
- Volunteers
- 5 people
- Sponsor
- National Cheng-Kung University Hospital
Chewing Function, Low Level Laser Therapy
Effect of Low-Level Laser Therapy on Spontaneous and Chewing Pain Associated With Orthodontic Elastomeric Separator Placement
The objective of this study is to determine the efficacy of LLLT at a wavelength of 635 nm on: Spontaneous pain between laser and placebo group with the placement of orthodontic elastomeric separators.
- Conditions
- Chewing Function, Low Level Laser Therapy, Pain, Visual Analog Scale
- Trial name
- NCT07651774
- Testing
- Low Level Laser Therapy, Control
- Where
- Pakistan
- Volunteers
- 80 people
- Sponsor
- Foundation University Islamabad
Visual Health of Virtual Reality
Developing and Validating VR-Enabled Ophthalmic Clinics: A New Paradigm for Visual Function Testing
This study aimed to design and validate a VR-based ophthalmic clinic that replicates traditional tests of visual acuity, stereopsis, and contrast sensitivity within an immersive digital environment.
- Trial name
- NCT04530773
- Testing
- Watch VR movies/ Play VR games
- Where
- China
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Hemianopia, Brain Injuries
Biofeedback Training for Hemianopia
This is a prospective study that compares biofeedback training on the microperimetry (BT) to a control group in patient s with hemianopia.
- Trial name
- NCT06995313
- Testing
- Biofeedback training
- Where
- Canada
- Volunteers
- 70 people
- Sponsor
- University Health Network, Toronto