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Vision rehabilitation

Raza Naseem Malik, Rachel Cote, Tania Lam
BACKGROUND: Skilled walking, such as obstacle crossing, is an essential component of functional mobility. Sensorimotor integration of visual and proprioceptive inputs is important for successful obstacle crossing. The objective of this study was to understand how proprioceptive deficits affect obstacle-crossing strategies when controlling for variations in motor deficits in ambulatory individuals with spinal cord injury (SCI). METHODS: 15 ambulatory individuals with SCI and 15 able-bodied controls were asked to step over an obstacle scaled to their motor abilities under full and obstructed vision conditions...
October 12, 2016: Journal of Neurophysiology
Michael J Ellis, Dean M Cordingley, Sara Vis, Karen M Reimer, Jeff Leiter, Kelly Russell
OBJECTIVE There were 2 objectives of this study. The first objective was to identify clinical variables associated with vestibulo-ocular dysfunction (VOD) detected at initial consultation among pediatric patients with acute sports-related concussion (SRC) and postconcussion syndrome (PCS). The second objective was to reexamine the prevalence of VOD in this clinical cohort and evaluate the effect of VOD on length of recovery and the development of PCS. METHODS A retrospective review was conducted for all patients with acute SRC and PCS who were evaluated at a pediatric multidisciplinary concussion program from September 2013 to May 2015...
September 30, 2016: Journal of Neurosurgery. Pediatrics
Shubhank Khare, Jolly Rohatgi, Manjeet Singh Bhatia, Upreet Dhaliwal
CONTEXT: Caregivers who assist persons with visual impairment often neglect their needs, resulting in burden and depression. Rehabilitation efforts, directed to the disabled, seldom target the caregiver. AIM: To assess burden and depression in persons caring for blind individuals. SETTINGS AND DESIGN: This was a cross-sectional study carried out in the outpatient department of a tertiary-level teaching hospital in New Delhi. MATERIALS AND METHODS: Institutional Ethical Board approval was obtained and written informed consent too was obtained from the participants involved in this study...
August 2016: Indian Journal of Ophthalmology
M G Arellano-Ganem, F Zuazo, M González, A Abdala, O Olvera-Morales, J L Tovilla-Canales, Á Nava-Castañeda
INTRODUCTION: Evisceration is currently becoming the technique of choice in the treatment of certain eye diseases, including, among others, painful blind eye and endophthalmitis. The most widely used implants are currently the hydroxyapatite and porous polyethylene for the rehabilitation of the anophthalmic socket. OBJECTIVE: To describe the indications, type of implant material used, and complications in evisceration surgery. METHODS: A retrospective, observational, descriptive study based on clinical records of patients that underwent evisceration between 2008 and 2015 in the Instituto Fundación Conde de Valenciana, Mexico...
September 26, 2016: Archivos de la Sociedad Española de Oftalmología
Noa Raz, Netta Levin
Despite the fact that almost one-third of patients suffer from visual deficits following brain damage; neuro-visual rehabilitation to compensate for visual field deficits is relatively neglected in the clinical setting. This is in contrast to physio and speech therapies, which are the bread and butter of rehabilitative programs. Likewise, programs that address coping with dementia usually concentrate on language, memory and cognitive skills, but often fail to address the deficits experienced by the subset of patients suffering from progressive cortico-visual dysfunction...
September 29, 2016: Journal of Neurology
Cristel Bourge
OBJECTIVE: Define and develop the acquired SCI patient's BI care within the internal unit of physical and neurological rehabilitation center of the University Hospital of Liège: - explore the patients' and professionals' representations and needs of BI care; - estimate the concordances and the dissonances of the visions; - identify if a patient's BI care exists within the unit and what form it takes. MATERIALS/PATIENTS AND METHODS: Qualitative, retrospective, exploratory and inductive study...
September 2016: Annals of Physical and Rehabilitation Medicine
Clément Provost, Giulia Piccinini, Sophie Tasseel-Ponche, Pierre Lozeron, Bertrand Arnulf, Alain Yelnik
OBJECTIVE: As proposed after stroke, the study of reactions to a sensory stimulation allows to a better understanding of postural strategies. Below, we provide the analysis in chronic acquired demyelinating polyneuropathies (CADP). MATERIAL/PATIENTS AND METHODS: Prospective study of 25 healthy subjects (57±12years, 8M, 17F) and 25 CADP (66±14years, 20M, 5F) on stabilometric platform (Techno-Concept(®), France). Proprioception was disturbed by tendon vibration on Triceps Surae (TS) and Tibialis Anterior (TA)...
September 2016: Annals of Physical and Rehabilitation Medicine
Doreen Bartlett, Lisa A Chiarello, Tina Hjorngaard, Barbara Sieck Taylor
We share our experiences as academic physical therapists and parents of young people with cerebral palsy working together as a research team, describe and critically review how our working relationship has evolved and propose further enhancements to realize our shared vision. This manuscript is informed by a call for "family-centered research," transcripts of face-to-face meetings held over a period of 1(1/2) days, the INVOLVE document and our experiences over almost a decade, as well as other related literature...
September 27, 2016: Disability and Rehabilitation
Kerry Louise Hanna, Lauren Rachel Hepworth, Fiona Rowe
PURPOSE: To provide a systematic overview of the various tools available to screen for post-stroke visual impairment. METHODS: A review of the literature was conducted including randomised controlled trials, controlled trials, cohort studies, observational studies, systematic reviews and retrospective medical note reviews. All languages were included and translation was obtained. Participants included adults ≥18 years old diagnosed with a visual impairment as a direct cause of a stroke...
September 26, 2016: Disability and Rehabilitation
Satu Turunen-Taheri, Åsa Skagerstrand, Sten Hellström, Per-Inge Carlsson
CONCLUSIONS: Patients with severe vision impairment in combination with severe-to-profound hearing loss seem to have a higher risk for effects on QoL, including: mobility, the ability to provide self-care and perform usual activities, and levels of anxiety and depression, compared with patients with only severe-to-profound hearing loss. OBJECTIVES: To study the quality-of-life (QoL) and audiological rehabilitation of the severely vision-impaired patient population among adults with severe-to-profound hearing loss in Sweden...
September 23, 2016: Acta Oto-laryngologica
Alireza Baradaran-Rafii, Medi Eslani, Zeeshan Haq, Ebrahim Shirzadeh, Michael J Huvard, Ali R Djalilian
Chemical injuries frequently result in vision loss, disfigurement, and challenging ocular surface complications. Acute interventions are directed at decreasing the extent of the injury, suppressing inflammation, and promoting ocular surface re-epithelialization. Chronically, management involves controlling inflammation along with rehabilitation and reconstruction of the ocular surface. Future therapies aimed at inhibiting neovascularization and promoting ocular surface regeneration should provide more effective treatment options for the management of ocular chemical injuries...
September 17, 2016: Ocular Surface
A M Bronstein
This chapter provides an introduction to the topic of multisensory integration in balance control in, both, health and disease. One of the best-studied examples is that of visuo-vestibular interaction, which is the ability of the visual system to enhance or suppress the vestibulo-ocular reflex (VOR suppression). Of clinical relevance, examination of VOR suppression is clinically useful because only central, not peripheral, lesions impair VOR suppression. Visual, somatosensory (proprioceptive), and vestibular inputs interact strongly and continuously in the control of upright balance...
2016: Handbook of Clinical Neurology
M J Koss, C Y Choi, R R Krueger, M Maia, H B Fam
No abstract text is available yet for this article.
2016: Journal of Ophthalmology
H Christiaan Stronks, Ellen B Mitchell, Amy C Nau, Nick Barnes
The BrainPort® V100 Vision Aid is a non-invasive assistive device for the blind based on sensory substitution. The device translates camera images into electrotactile stimuli delivered to the tongue. The BrainPort has recently received the CE mark and FDA approval and it is currently marketed to augment, rather than replace, the traditional assistive technologies such as the white cane or guide dog. Areas covered: In this work, we will review the functional studies performed to date with the BrainPort and we will highlight the critical factors that determine device performance, including the technology behind the BrainPort, the impediments to assessing device performance, and the impact of device training and rehabilitation...
October 5, 2016: Expert Review of Medical Devices
MiYoung Kwon, Rong Liu, Lillian Chien
Spatial resolution is an important factor for human pattern recognition. In particular, low resolution (blur) is a defining characteristic of low vision. Here, we examined spatial (field of view) and temporal (stimulus duration) requirements for blurry object recognition. The spatial resolution of an image such as letter or face, was manipulated with a low-pass filter. In experiment 1, studying spatial requirement, observers viewed a fixed-size object through a window of varying sizes, which was repositioned until object identification (moving window paradigm)...
2016: PloS One
Zhaohui Wu, Nenggan Zheng, Shaowu Zhang, Xiaoxiang Zheng, Liqiang Gao, Lijuan Su
The combination of biological and artificial intelligence is particularly driven by two major strands of research: one involves the control of mechanical, usually prosthetic, devices by conscious biological subjects, whereas the other involves the control of animal behaviour by stimulating nervous systems electrically or optically. However, to our knowledge, no study has demonstrated that spatial learning in a computer-based system can affect the learning and decision making behaviour of the biological component, namely a rat, when these two types of intelligence are wired together to form a new intelligent entity...
2016: Scientific Reports
Jose M Trejo-Gabriel-Galan, V Rogel-Melgosa, S Gonzalez, J Sedano, J R Villar, N Arenaza-Basterrechea
BACKGROUND: Hemineglect is frequent after right hemisphere stroke and prevents functional independence, but effective rehabilitation interventions are lacking. Our objective was to determine if a visual-acoustic alarm in the hemineglect arm activated by a certain discrepancy in movement of both hands can enhance neglect arm use in five tasks of daily living. METHODS: In this pre-post intervention study 9 stroke patients with residual hemineglect of the arm were trained for 7 days in five bimanual tasks of daily living: carrying a tray, button fastening, cutting food with knife and fork, washing the face with both hands and arm sway while walking...
2016: Journal of Neuroengineering and Rehabilitation
Anne Norup, Anne-Mette Guldberg, Claus Radmer Friis, Eva Maria Deurell, Hysse Birgitte Forchhammer
OBJECTIVE: To describe the work of an interdisciplinary visual team in a stroke unit providing early identification and assessment of patients with visual symptoms, and secondly to investigate frequency, type of visual deficits after stroke and self-evaluated impact on everyday life after stroke. METHODS: For a period of three months, all stroke patients with visual or visuo-attentional deficits were registered, and data concerning etiology, severity and localization of the stroke and initial visual symptoms were registered...
July 15, 2016: NeuroRehabilitation
Guodong Guo, Keegan Guffey, Wenbin Chen, Paola Pergami
Human gait recognition, an active research topic in computer vision, is generally based on data obtained from images/videos. We applied computer vision technology to classify pathology-related changes in gait in young children using a foot-pressure database collected using the GAITRite walkway system. As foot positioning changes with children's development, we also investigated the possibility of age estimation based on this data. Our results demonstrate that the data collected by the GAITRite system can be used for normal/pathological gait classification...
September 1, 2016: Neuroinformatics
Hajirah N Saeed, James Chodosh
PURPOSE OF REVIEW: Recent advances and outcomes data in the management of Stevens-Johnson syndrome and toxic epidermal necrolysis (SJS/TEN) demonstrate the need for a universal standard of care for patients admitted with the disease. RECENT FINDINGS: Amniotic membrane transplantation, aggressive topical corticosteroids, and lubrication in the acute stage are necessary to prevent or mitigate long-term ocular sequelae. If chronic ocular disease does occur, several interventions can be employed to prevent progressive vision loss and discomfort...
November 2016: Current Opinion in Ophthalmology
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