Clinical Trials About "Rats trail behind shrews monkeys humans visual problem" - Page: 20 RSS

08:05 EST 14th November 2018 | BioPortfolio

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Showing "Rats trail behind shrews monkeys humans visual problem" Clinical Trials 476–500 of 5,900+

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Evaluation of Visual Performance With Contact Lenses

This study will evaluate the influence of contact lens optical design on visual performance using standard and multifocal soft contact lenses (MFCLs).

Low Vision Patients' Preference for Colored Filters and Illumination for Near Reading Determined by the LuxIQ/2

The effect of tinted filters and illumination on the visual performance of patients with low vision (i.e., individuals with reduced vision that is uncorrectable with glasses, surgery or treatments) has been a topic of research and discussion for many years, yet there is no current consensus or practice standard for the evaluation and recommendation of colored filters and/or illumination intensity. Anecdotally, there have been many subjective reports of improvement in visual fun...

The Evolution of Visual Acuity Measured by Electronic Tablet / Computer of Exudative AMD Patients

This pathology, DMLA, whose evolution is chronic, requires regular follow-up and care (IVTs) over a long period (several months or even years). Increasing the number of patients to be followed and treated poses increasing problems for ophthalmologists to ensure regular follow-up of patients, followed by a need for satisfactory functional results. Moreover, this regular follow-up imposes enormous constraints on patients and their families (some children or patients are s...

Study of Methylnaltrexone in Opioid-Induced Constipation Patients

This is a multicenter, randomized, double-blind , placebo-controlled trail to investigate the safety and efficacy of subcutaneous methylnaltrexone for treating opioid-induced constipation in patients with advanced illness.

Effect of Probiotics on Central Nervous System Functions in Humans

The gut-brain axis is described as being important in both, gut functions and central nervous system (CNS) functions. The microbiota in the gut plays an important role in this axis through neural, immune and endocrine systems. Previous studies have found altered gut microbiota (GM) composition could change the CNS functions in animals and humans. Probiotics were shown having positive effect on improving stress response in animals and stress related psychiatry in humans. The cur...

Pain and Visual Outcome in Intravitreal Bevacizumab Injection

In this double blind clinical trial, 1000 patients suffering from diabetic macular edema, age-related macular degeneration, neovascularization due to proliferative diabetic retinopathy and cystoid macular edema secondary to retinal vascular occlusions are included. Those with the history of Ocular pain prior to the procedure, any contraindication for Intravitreal Bevacizumab Injection (IVI), history of any kind of anterior segment conditions that could affect pain sensation, hi...

AMblyopia Treatment Through PErceptual Training in Children (AMPEL)

Amblyopia, affects 4% of the population. In the presence of a normal retina and optic nerve, the visual cortex does not develop normally secondary to the amblyopic eye being at a disadvantage in the sensitive period such as in strabismus. Amblyopia is associated with visuospatial disorders, and poor to absent stereopsis. Amblyopia is treated by occlusion of the non- amblyopic eye in childhood. The present study aims to evaluate the effectiveness of perceptual learning (PL), tha...

The Combining rTMS With Visual Feedback Training for Patients With Stroke

After stroke, patients often experience motor deficits that interrupt normal lower extremity movement and gait function. Recent developments in neuroimaging have focus on the reasons why some patients recover well while some do poorly. However, there is still no consensus on the exact mechanisms involved in regaining the functions after rehabilitation. Application of repetitive transcranial magnetic stimulation (rTMS) to facilitate neural plasticity during stroke treatment has ...

Topiramate Treatment of Problem Drinkers

The purpose of this study is to evaluate the safety and efficacy of topiramate in reducing drinking and heavy drinking frequency in problem drinkers. We hypothesize that at a dosage of up to 200mg/day, topiramate will be well tolerated in this patient population and that, compared to placebo treatment, topiramate will result in a greater reduction in the frequency of both drinking days and heavy drinking days.

Protective Effect of Phenytoin on Glaucoma

since glaucoma is considered an optic neuropathy, new treatments for glaucoma are being continuously investigated, including neuroprotection. Previous studies implied that phenytoin, a potent anti-convulsive drug, has a neuroprotective role, and Na+ channels blockage was suggested as a possible mechanism. This study predicts that glaucoma patients taking Phenytoin will have a less advanced glaucoma as compared to patients not taking the drug. Glaucoma severity will be determi...

Comparison of Critical Flicker Fusion Versus Automated Visual Fields in the Detection of Early Glaucoma

The purpose of this study is to evaluate if critical flicker fusion is a more reliable method for detection of early glaucoma compared to automated visual fields in comparison to subjects without evidence of glaucoma or optic nerve disease.

Cognitive Assessment in Excessive Daytime Sleepiness: Electrophysiological Study.

Cognition was assessed using Minimental state examination (MMSE), Trail making tests A and B (TMT) tests, P300 and quantitative electroencephalography (QEEG) sleepiness was assessed using Epworth Sleepiness Scale (ESS), Karolinska sleepiness scale (KSS) and QEEG also polysomnography (PSG) was done for all participated subjects

Bioavailability of Iodine in Cow's Milk in Swiss Adults

Iodine deficiency remains a global problem impairing health and development in affected populations. Although there has been remarkable global progress against iodine deficiency, mild and moderate iodine deficiency remain common globally, including European countries. Besides salt, milk and dairy products are important iodine sources in many industrialized countries, with varying contributions depending on the milk iodine concentration and the amount of milk and dairy consumed....

A 12 Week Study of MK0653A in Patients Who Have Been Hospitalized for a Possible Heart Problem

The purpose of this study is to investigate the effect of an investigational cholesterol-lowering drug in patients who are currently taking an approved medication for hypercholesterolemia (high cholesterol levels) and have been hospitalized for a heart problem.

Measuring Subjective Visual Vertical (SVV) Using a Smartphone Application

A comparison between two methods evaluating SVV: Bucket Test and A smartphone-based test.

Seasonal Affective Disorder and Visual Impairment

As a subtype of major depressive disorder, seasonal affective disorder (SAD) or winter depression causes severe reductions in both quality of life and productivity and results in high morbidity and frequent sick leave (1). SAD is a prevalent disorder with rates as high as 3-5% in central European countries and 8-10% in Scandinavian countries. In our recent screening survey among persons with severe visual impairment or blindness (visual acuity < 6/60), we found a strikingly hig...

Correlation Between LIF (Leukemia Inhibitory Factor ) Levels in Cord and Maternal Blood in Women Treated With Mg

During embryonic development, there are several cytokines such as: LIF (Leukemia inhibitory factor), ciliary neurotrophic factor (CNTF), epidermal growth factor family (EGF), neuregulin 1 (NRG1) and transforming growth factor β (TGFβ) that were found are associated with neurogenesis and differentiation of brain cells. LIF is a cytokine that is essential for the development of the central nervous system, and has recently been shown in rats that maternal LIF stimulates placen...

Self-motion Perception in Parkinson's Disease

Parkinson's Disease as well as being a disorder of motor function also causes a wide range of non-motor disturbances many of which are involved in the prodromal stage prior to the onset of motor symptoms. Abnormal perception in the visual and in other domains is increasingly being recognized. Control of the movement of our bodies in space involves perception of self-motion which is dependent on the processing and integration of multimodality information from the kinesthetic, pr...

The Effect of Probiotics on Chronic Kidney Disease

Probiotics could improve renal function parameters in uremic rats and significantly lower levels of blood urea nitrogen in stage 3 and 4 chronic kidney disease patients. The aim of the present study is to evaluate whether probiotics could retard the decline of renal function in patients with chronic kidney disease?

Restoration of Standing and Walking With ISMS in Humans

Spinal cord neural circuitry exists in the lumbar enlargement that makes it possible to stand and create synergistic, rhythmic stepping activity in the lower limbs. In the past 20 years, clinicians have tried to reengage such these circuits for standing and walking in the lower spinal cord of paralyzed humans through novel paradigms of physical therapy, pharmacological stimulation of the spinal cord, or recently - epidural stimulation of the spinal cord. Although standing and s...

Implementation and Evaluation of a Perceptual Learning Module on Visual Estimation of LVEF

This study is designed to: 1. Implement a Web platform intended to host perceptual learning modules (PLMs) 2. Implement and assess a PLM designed to improve the capacity of first-year residents to visually estimate the left ventricular ejection fraction (LVEF) with transesophageal echocardiography (TEE) images. The hypothesis of the study is that the PLM will improve the visual assessment of LVEF by TEE in junior residents.

Does Islet Transplantation Eliminate Hypoglycemia?

Low blood sugar (hypoglycemia) is a recurrent problem for many people with diabetes. Successful transplantation of clusters (islets) of normal cells, that include those which produce the sugar-lowering hormone insulin, from the pancreas of a person who did not have diabetes into a person with diabetes should eliminate high blood sugar levels. We wish to determine if it will also eliminate low blood sugar. To do so we will give insulin to lower the blood sugar, measure the lev...

An Open Label Trial to Investigate Macugen for the Preservation of Visual Function in Subjects With Neovascular AMD

The purpose of this study is to determine the benefits of treating subjects with neovascular age-related macular degeneration (AMD) at an earlier stage of choroidal neovascularization (CNV) as compared to those with established CNV. Additionally, the study would like to determine the efficacy of Macugen in preserving visual function in those subjects having CNV secondary to neovascular AMD.

Improving Quality of Life in Heart Failure

This research study has been designed to test the efficacy of telephone-delivered Problem-Solving Treatment (PST) for improving the quality of life (QoL) in outpatients with stable heart failure (HF).

Modulation of Visual-Spatial Learning in Healthy Older Adults by tDCS

The aim of this study is to investigate whether a combination of intensive training of visual-spatial abilities (LOCATO task) with anodal transcranial direct current stimulation (tDCS) leads to an improvement of learning and memory in healthy older adults and to examine the underlying neuronal mechanism.

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