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https://www.readbyqxmd.com/read/28820161/ocular-morbidity-patterns-among-children-in-schools-for-the-blind-in-chennai
#1
M Vs Prakash, S Sivakumar, Ashutosh Dayal, A Chitra, Sudharshini Subramaniam
PURPOSE: To identify the morbidity patterns causing blindness in children attending schools for the blind in Chennai and comparing our data with similar studies done previously. METHODS: A cross-sectional prevalence study was carried out in two schools for the blind in Chennai. Blind schools were visited by a team of ophthalmologists and optometrists. Students with best-corrected visual acuity (BCVA) worse than 3/60 in the better eye were included and relevant history was noted...
August 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28813925/stereo-3d-tracking-of-infants-in-natural-play-conditions
#2
Shreyas S Shivakumar, Helen Loeb, Daniel K Bogen, Frances Shofer, Phillip Bryant, Laura Prosser, Michelle J Johnson
This paper describes the design and implementation of a multiple view stereoscopic 3D vision system and a supporting infant tracker pipeline to track limb movement in natural play environments and identify potential metrics to quantify movement behavior. So far, human pose estimation and tracking with 3D cameras has been focused primarily on adults and cannot be directly extended to infants because of differences in visual features such as shapes, sizes and appearance. With rehabilitation in mind, we propose a portable, compact, markerless, low cost and high resolution 3D vision system and a tracking algorithm that exploits infant appearance attributes and depth information...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813819/mit-skywalker-on-the-use-of-a-markerless-system
#3
Rogerio S Goncalves, Taya Hamilton, Hermano I Krebs
This paper describes our efforts to employ the Microsoft Kinect as a low cost vision control system for the MIT-Skywalker, a robotic gait rehabilitation device. The Kinect enables an alternative markerless solution to control the MIT-Skywalker and allows a more user-friendly set-up. A study involving eight healthy subjects and two stroke survivors using the MIT-Skywalker device demonstrates the advantages and challenges of this new proposed approach.
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813802/movement-therapy-without-moving-first-results-on-isometric-movement-training-for-post-stroke-rehabilitation-of-arm-function
#4
A Melendez-Calderon, E Rodrigues, K Thielbar, J L Patton
This study explores the use of isometric movement training for arm rehabilitation after stroke. The aim of this approach is to enhance movement skill even when the person training is not moving. This is accomplished by deceptively displaying virtual motions, exploiting known cross-modal sensory interactions between vision and proprioception. This approach can be advantageous in situations where actual movement is prohibitive due to weakness, spasticity, instability, or unsafe conditions. We present early insights on usability of and tolerance to this training approach and quantitative results that can power future clinical trials...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28775181/exploring-the-patient-perspective-of-fatigue-in-adults-with-visual-impairment-a-qualitative-study
#5
Wouter Schakel, Christina Bode, Hilde P A van der Aa, Carel T J Hulshof, Judith E Bosmans, Gerardus H M B van Rens, Ruth M A van Nispen
OBJECTIVES: Fatigue is an often mentioned symptom by patients with irreversible visual impairment. This study explored the patient perspective of fatigue in visually impaired adults with a focus on symptoms of fatigue, causes, consequences and coping strategies. SETTING: Two large Dutch low vision multidisciplinary rehabilitation organisations. PARTICIPANTS: 16 visually impaired adults with severe symptoms of fatigue selected by purposive sampling...
August 3, 2017: BMJ Open
https://www.readbyqxmd.com/read/28764679/economic-evaluation-of-stepped-care-versus-usual-care-for-depression-and-anxiety-in-older-adults-with-vision-impairment-randomized-controlled-trial
#6
Hilde P A van der Aa, Ger H M B van Rens, Judith E Bosmans, Hannie C Comijs, Ruth M A van Nispen
BACKGROUND: A stepped-care program was found effective in preventing depressive and anxiety disorders in older adults with vision impairment. However, before a decision can be made about implementation, the cost-effectiveness of this program should be investigated. Therefore, we aimed to compare the cost-effectiveness of stepped-care versus usual care within low vision rehabilitation. METHODS: An economic evaluation from a societal perspective was performed alongside a multicenter randomized controlled trial...
August 1, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28736514/design-and-validation-of-exoskeleton-actuated-by-soft-modules-toward-neurorehabilitation-vision-based-control-for-precise-reaching-motion-of-upper-limb
#7
Victoria W Oguntosin, Yoshiki Mori, Hyejong Kim, Slawomir J Nasuto, Sadao Kawamura, Yoshikatsu Hayashi
We demonstrated the design, production, and functional properties of the Exoskeleton Actuated by the Soft Modules (EAsoftM). Integrating the 3D printed exoskeleton with passive joints to compensate gravity and with active joints to rotate the shoulder and elbow joints resulted in ultra-light system that could assist planar reaching motion by using the vision-based control law. The EAsoftM can support the reaching motion with compliance realized by the soft materials and pneumatic actuation. In addition, the vision-based control law has been proposed for the precise control over the target reaching motion within the millimeter scale...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28715851/paradigm-shifts-peregrinations-and-pixies-in-ophthalmology
#8
REVIEW
A O Minas Coroneo
Defending vision, our highest bandwidth sense, challenges human ingenuity. Replacing or repairing highly specialized but scarce tissue within constraints of transparency, tissue shape and alignment, tissue borders and pressure maintenance, presents special challenges. Many, mostly destructive surgical procedures, were developed prior to an understanding of underlying pathophysiology. For a number of conditions, both reconstructive and destructive procedures co-exist yet there are few guidelines as to the better approach...
July 17, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28697708/agreed-definitions-and-a-shared-vision-for-new-standards-in-stroke-recovery-research-the-stroke-recovery-and-rehabilitation-roundtable-taskforce
#9
Julie Bernhardt, Kathryn S Hayward, Gert Kwakkel, Nick S Ward, Steven L Wolf, Karen Borschmann, John W Krakauer, Lara A Boyd, S Thomas Carmichael, Dale Corbett, Steven C Cramer
The first Stroke Recovery and Rehabilitation Roundtable established a game changing set of new standards for stroke recovery research. Common language and definitions were required to develop an agreed framework spanning the four working groups: translation of basic science, biomarkers of stroke recovery, measurement in clinical trials and intervention development and reporting. This paper outlines the working definitions established by our group and an agreed vision for accelerating progress in stroke recovery research...
July 2017: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/28697678/ek-dlek-dsek-dmek-new-frontier-in-cornea-surgery
#10
Marianne O Price, Pankaj Gupta, Jonathan Lass, Francis W Price
Endothelial keratoplasty (EK) has revolutionized treatment of corneal endothelial dysfunction. Compared with penetrating keratoplasty (PK), EK provides faster and more reliable visual rehabilitation while maintaining the eye's structural integrity. The number of EK procedures is growing annually and surpassed PK in the United States in 2012. The most widely used iteration, Descemet stripping endothelial keratoplasty (DSEK), implants healthy donor endothelium, Descemet membrane, and posterior stroma. Descemet membrane endothelial keratoplasty (DMEK) eliminates the donor stromal layer...
July 11, 2017: Annual Review of Vision Science
https://www.readbyqxmd.com/read/28697356/perceptual-learning
#11
Aaron R Seitz
Perceptual learning refers to how experience can change the way we perceive sights, sounds, smells, tastes, and touch. Examples abound: music training improves our ability to discern tones; experience with food and wines can refine our pallet (and unfortunately more quickly empty our wallet), and with years of training radiologists learn to save lives by discerning subtle details of images that escape the notice of untrained viewers. We often take perceptual learning for granted, but it has a profound impact on how we perceive the world...
July 10, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28692510/giant-serpentine-middle-cerebral-artery-aneurysm
#12
Xiao-Xiao Peng, Ming-Xing Wang, Hong-Xing Li, Ji-Rong Zhang
Giant serpentine aneurysms are rare entity, which have unique presentations and distinct angiographic features, with poor prognosis if not treated. In this paper, a patient with a giant serpentine aneurysm originated from right middle cerebral artery was reported. A 38-year-old woman suffered from progressively headache and vision declined. The computed tomography and magnetic resonance image revealed a partially calcified, large mass (approximately 80 × 70 × 60 mm sized) in the right frontal-temple lobe...
July 7, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28679843/restricted-vision-increases-sensorimotor-cortex-involvement-in-human-walking
#13
Anderson S Oliveira, Bryan R Schlink, William David Hairston, Peter Konig, Daniel Perry Ferris
This study aimed to determine if there are electrocortical evidence of augmented participation of sensory brain areas on walking modulation during walking with eyes closed. Healthy subjects (n=10) walked on a treadmill at 1 m/s while alternating 5 minutes walking with the eyes open or closed while we recorded ground reaction forces (GRF) and high-density scalp electroencephalography (EEG). We applied independent component analysis to parse EEG signals into maximally independent component (IC) processes and then computed equivalent current dipoles for each IC...
July 5, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28676750/multi-trial-gait-adaptation-of-healthy-individuals-during-visual-kinematic-perturbations
#14
Trieu Phat Luu, Yongtian He, Sho Nakagome, Kevin Nathan, Samuel Brown, Jeffrey Gorges, Jose L Contreras-Vidal
Optimizing rehabilitation strategies requires understanding the effects of contextual cues on adaptation learning. Prior studies have examined these effects on the specificity of split-belt walking adaptation, showing that contextual visual cues can be manipulated to modulate the magnitude, transfer, and washout of split-belt-induced learning in humans. Specifically, manipulating the availability of vision during training or testing phases of learning resulted in differences in adaptive mechanisms for temporal and spatial features of walking...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28676352/assessment-of-neuro-optometric-rehabilitation-using-the-developmental-eye-movement-dem-test-in-adults-with-acquired-brain-injury
#15
Neera Kapoor, Kenneth Joseph Ciuffreda
PURPOSE: This pilot study sought to determine the efficacy of using the Developmental Eye Movement (DEM) test in the adult, acquired brain injury (ABI) population to quantify clinically the effects of controlled, laboratory-performed, oculomotor-based vision therapy/vision rehabilitation. METHODS: Nine adult subjects with mild traumatic brain injury (mTBI) and five with stroke were assessed before and after an eight-week, computer-based, versional oculomotor (fixation, saccades, pursuit, and simulated reading) training program (9...
July 1, 2017: Journal of Optometry
https://www.readbyqxmd.com/read/28664572/the-use-of-contact-lenses-in-low-vision-rehabilitation-optical-and-therapeutic-applications
#16
REVIEW
Stephen J Vincent
Ocular pathology that manifests at an early age has the potential to alter the vision-dependent emmetropisation mechanism, which co-ordinates ocular growth throughout childhood. The disruption of this feedback mechanism in children with congenital or early-onset visual impairment often results in the development of significant ametropia, including high levels of spherical refractive error, astigmatism and anisometropia. This review examines the use of contact lenses as a refractive correction, low vision aid and therapeutic intervention in the rehabilitation of patients with bilateral, irreversible visual loss due to congenital ocular disease...
June 29, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28660276/determining-the-contribution-of-retinotopic-discrimination-to-localization-performance-with-a-suprachoroidal-retinal-prosthesis
#17
Matthew A Petoe, Chris D McCarthy, Mohit N Shivdasani, Nicholas C Sinclair, Adele F Scott, Lauren N Ayton, Nick M Barnes, Robyn H Guymer, Penelope J Allen, Peter J Blamey
Purpose: With a retinal prosthesis connected to a head-mounted camera, subjects can perform low vision tasks using a combination of electrode discrimination and head-directed localization. The objective of the present study was to investigate the contribution of retinotopic electrode discrimination (perception corresponding to the arrangement of the implanted electrodes with respect to their position beneath the retina) to visual performance for three recipients of a 24-channel suprachoroidal retinal implant...
June 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28654479/knowledge-translation-in-rehabilitation-a-shared-vision
#18
Jennifer L Moore, Keiko Shikako-Thomas, Deborah Backus
PURPOSE: Advances in rehabilitation provide the infrastructure for research and clinical data to improve care and patient outcomes. However, gaps between research and practice are prevalent. Knowledge translation (KT) aims to decrease the gap between research and its clinical use. This special communication summarizes KT-related proceedings from the 2016 IV STEP conference, describes current KT in rehabilitation science, and provides suggestions for its application in clinical care. SUMMARY OF KEY POINTS: We propose a vision for rehabilitation clinical practice and research that includes the development, adaptation, and implementation of evidence-based practice recommendations, which will contribute to a learning health care system...
July 2017: Pediatric Physical Therapy
https://www.readbyqxmd.com/read/28650685/colored-glasses-to-mitigate-photophobia-symptoms-posttraumatic-brain-injury
#19
Joseph Clark, Kimberly Hasselfeld, Kathryn Bigsby, Jon Divine
CONTEXT:   After a concussion or mild traumatic brain injury (mTBI), patients often suffer from light sensitivity, or photophobia, which contributes to decreased quality of life post-mTBI. Whereas sunglasses may provide some relief from photophobia, they are not practical indoors or in low light. A light-mitigation strategy can be easily used indoors as needed to optimize the relief. We have found that many photophobic patients experience relief using colored sunglasses. OBJECTIVE:   To provide the athletic trainer with a means and method to assess whether an athlete is suffering from photophobia after concussion and to determine if colored glasses provide relief...
August 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28641161/postural-control-in-blind-individuals-a-systematic-review
#20
REVIEW
Rodolfo Borges Parreira, Luanda André Collange Grecco, Claudia Santos Oliveira
Postural control (PC) requires the interaction of the three sensory systems for a good maintenance of the balance, and in blind people, lack of visual input can harm your PC. Thus the objective is to perform a literature review concerning role of sight in the maintenance of PC and the adaptation of brain structures when vision is absent. Studies were searched from Pubmed, and EMBASE that included individuals with congenital blindness. Articles studying person with acquired blindness or low vision was excluded from this review...
June 12, 2017: Gait & Posture
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