View clinical trials related to Visual Impairment.
Filter by:Seniors deal with considerable visual demands (driving, communicating, traveling) and reduced vision affects their quality of life, ability to enjoy activities, and age-in-place. Vision loss has a heavy, increasing, economical and social burden. It can also have substantial impacts on caregivers physically, psychologically, and financially because one tends to miss more work, be less productive, and thus have fewer job opportunities. This registration will describe the clinical portion of a larger study designed to evaluate both the feasibility and effectiveness of the Re:Garde Program, a Virtual Reality (VR) visual training program for older adults to help maintain visual perception to promote quality of life and prolonged independence. In partnership with our care partners the investigators will implement the Re:Garde Program at an interprofessional clinic and as part of a loaning program for older adults to use in the home. The clinical portion of this study will look at how effective the Re:Garde program is at maintaining or improving visual perception, ability to conduct activities of daily living (e.g. read, drive, cook, exercise etc.), general wellness, and quality of life. The feasibility of implementing this program in the two settings will be evaluated separately as part of the full protocol.
Chronic NonSpecific Low Back Pain (CNSLBP) is a common musculoskeletal condition often resulting in physical inactivity and disability. CNSLBP is associated with a large number of social and health costs, being one of the most important health problems worldwide. Although Therapeutical Exercise (TE) has been shown to be effective in increasing physical activity tolerance, physical fitness, strength, self perceived quality of live, pain tolerance, and overall physical activity participation levels in persons with CNSLBP, pain-release-passive therapy modalities are significantly more commonly used in clinical settings at present. On the other hand, the use of tele-assistance platforms PTAs has been gaining importance in the treatment of CNSLBP patients, especially in the use of semi-directed TE programs. However, current PTAs are not accessible for the visually impaired, a group that is at greater risk of suffering from sedentary lifestyles, restricted mobility and musculoskeletal pain due to postural or gait changes. The main hypothesis of these study is that a semi-directed TE and health education programm, in people with and without visual impairment, achieves better results in movement capacity, functional recovery, strength and compared to passive analgesic treatment in patients with CNSLBP. In a second objective, we will assess the efficacy and usability of a new PTA accesible tool for the follow-up of patients with CNSLBP who are visually impaired.
To assess repeatability of electroretinogram and visual evoked potential in clinical practice
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 suffering from visual field defects.
The use of tools is ubiquitous in our lives and allows us to expand the sensorimotor capacities of our body. Much research has been done on the subject in sighted people over the past decades. This work has mainly focused on the motor aspect of using the tool, neglecting the sensory aspect. However, any action involving a tool carries sensory information, for example in the use of the white cane by blind people. 26% (> 200,000) of blind people in France use a white cane to get around. By sweeping the cane on the ground, they use it as a sensorimotor extension of their body to extract information from the environment in order to locate a pedestrian crossing or possible obstacles. While it is well established that the tools increase the user's motor skills, we have only just begun to clarify how they also function as sensory extensions of the user's body and how this phenomenon is potentially dependent on constant use of the tool to compensate for a missing sense, as is the case with blind people using a cane. The aim of this study is to fill this important gap in our knowledge.
The trial will determine the impact of an information- and education-focused interventions on the anxiety levels, and patients' experiences as well as satisfaction of patients aged 10-14 and their caregivers during the MR examination.
This is a randomized, pilot interventional study in participants with visual field deficit (VFD) caused by cortical lesion. Damage to the primary visual cortex (V1) causes a contra-lesional, homonymous loss of conscious vision termed hemianopsia, the loss of one half of the visual field. The goal of this project is to elaborate and refine a rehabilitation protocol for VFD participants. It is hypothesized that visual restoration training using moving stimuli coupled with noninvasive current stimulation on the visual cortex will promote and speed up recovery of visual abilities within the blind field in VFD participants. Moreover, it is expected that visual recovery positively correlates with reduction of the blind field, as measured with traditional visual perimetry: the Humphrey visual field test. Finally, although results will vary among participants depending on the extension and severity of the cortical lesion, it is expected that a bigger increase in neural response to moving stimuli in the blind visual field in cortical motion area, for those participants who will show the largest behavioral improvement after training. The overarching goals for the study are as follows: Group 1 will test the basic effects of transcranial random noise stimulation (tRNS) coupled with visual training in stroke cohorts, including (i) both chronic and subacute VFD stroke participant, and (ii) longitudinal testing up to 6 months post-treatment. Group 2 will examine the effects of tRNS alone, without visual training, also including chronic and subacute VFD stroke participants and longitudinal testing.
This research is aimed to address one of the big gaps in the current vision rehabilitation protocols for people with profound visual impairment by evaluating a multisensory approach. There are a growing number of clinical trials that recruit people with end-stage eye diseases and the rehabilitation plan following various treatments is not clear. It is important to address this in order to maximize the efficacy of such treatments and to improve the quality of life in people with profound visual impairment.
This trial aims to assess the accuracy and test-retest variability of a new digital app which enables community visual acuity testing without requirement of an trained examiner.
This study is driven by the hypothesis that navigation for users of retinal prosthetics can be greatly improved by incorporating Spatial Localization and Mapping (SLAM) and object recognition technology conveying environmental information via a retinal prosthesis and auditory feedback. The investigators will study how effectively the SLAM technology enables the visual prosthesis system to construct a map of the user's environment and locate the user within that map. The technology will be tested both with normally sighted individuals donning a virtual reality headset and with retinal prosthesis users (Argus II).