Smartphone Flicker Fusion Test for Patients With Optic Disorders.
ScotomaThe purpose of this project is to validate a quick, easy-to-use and administer smartphone flicker fusion test. The app (called eyeFusion) can potentially be used to easily and quickly collect critical flicker fusion measurements on patients admitted with optic disorders as part of the clinical care process.
Effect of AI Monitoring Blind Spots of EGD on the Inspection Time and Lesion Dection Rate
Upper Gastrointestinal SymptomsThe goal of this clinic trial is to learn about the effect of AI monitoring blind spots on the inspection time to EGD. Patients are randomly assigned to undergo an EGD with or without the assistance of AI. In the AI group, except for the original videos, there is additional information presented to endoscopists:(1)the virtual stomach model monitoring;(2)time;(3)scoring. Researchers will compare intervention group to see if it have a shorter inspection time compared with the control group.
The Use of Transcranial Direct Current Stimulation (TDCS) to Enhance the Rehabilitative Effect of...
HemianopiaQuadrantanopia2 moreThe purpose of our study is to explore the efficacy of combination of brain stimulation with visual rehabilitation in patients with visual field loss resulting from brain lesions. It is shown that the effect of sensorimotor training of hand can be enhanced in patients with stroke using brain stimulation. We decided to explore this combination for visual field loss because visual dysfunction following brain lesions is considered intractable. We hypothesize that combination of noninvasive brain stimulation, in the form of transcranial direct current stimulation (tDCS), with visual rehabilitation would have greater efficacy than visual rehabilitation alone.
Visuomotor Rehabilitation Training for Manual Task Deficits From Macular Scotomas
ScotomaCentral1 moreThe research is aimed at developing and testing a new method of visual-motor rehabilitation of Veterans with macular degeneration by using inexpensive "tablet" computers at home.
Optical Coherence Tomography and Microperimetry Biomarker Evaluation in Patients With Geographic...
Age-Related Macular DegenerationGeographic Atrophy2 moreThis study is a biomarker evaluation study in patients with geographic atrophy secondary to age-related macular degeneration (AMD). The study evaluates microperimetry (fundus-controlled perimetry) and optical coherence tomography imaging for assessing changes in retinal sensitivity and anatomy over time.
Scotoma Reduction in AMD Patients Treated With Ranibizumab
Macular DegenerationThis is a trial aimed at patients with advanced wet macular degeneration and macular scarring treated wiht intravitreal injections of Lucentis.
Paraorbital-Occipital Alternating Current Stimulation Therapy of Patients With Post-Chiasmatic Lesions...
Complete HemianopiaIncomplete Hemianopia5 moreVisual field areas, which are not absolutely blind, are hypothesized to have some residual capacities that constitute their potential for vision restoration. Vision restoration can be achieved by varies methods including behavioral training and electrical brain stimulation such as transcranial direct current stimulation (tDCS) and repetitive transorbital alternating current stimulation (rtACS) which are able to influence the excitability and activity of cortical areas. It is hypothesized that transorbital alternating current stimulation (tACS) can improve the residual field of vision in patients with post-chiasmatic lesions.
Patient Performance and Acceptance of Virtual Reality Visual Field Devices
Visual Field DefectPeripheral4 moreThe purpose of this research is to study the effectiveness and patient experience when measuring visual fields using virtual reality goggles.
Effectiveness of Training in Reading Rehabilitation for Patients With Diabetic Macular Oedema
Diabetic Macular OedemaParafoveal ScotomaDiabetic macular oedema (DMO) is a sight-threatening problem for diabetic patient who has swelling in macula. Patients with DMO can receive laser treatment and achieve good acuity finally. However, some patients still have difficulties in reading even after proper treatment. In this project, the investigators aimed to explore the effectiveness of different training paradigms in improving reading performance in patients with DMO.
Serial Retinal Thickness Changes And Scotoma Size Measured With Lucentis Therapy
Age Related Macular DegenerationThe rationale for evaluating LucentisTM (a recombinant humanized anti-human Vascular Endothelial Growth Factor (VEGF) monoclonal antibody (Fab) in patients with neovascular (wet) Age related Macular Degeneration (AMD) is based on the strong correlation between VEGF levels in aqueous and vitreous humor and active blood vessel formation. LucentisTM has been shown to maintain or improve vision in wet AMD. Since the treatments do not halt the loss of visual acuity in wet AMD, it is important to accurately measure anatomic response to treatments thereby enhancing the ability to understand patterns of response and predict the necessity for continued therapy.