Walter Wittich

ORCID: 0000-0003-2184-6139
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About
Contact & Profiles
Research Areas
  • Ophthalmology and Visual Impairment Studies
  • Hearing Impairment and Communication
  • Hearing Loss and Rehabilitation
  • Tactile and Sensory Interactions
  • Dementia and Cognitive Impairment Research
  • Assistive Technology in Communication and Mobility
  • Ergonomics and Musculoskeletal Disorders
  • Glaucoma and retinal disorders
  • Noise Effects and Management
  • Stroke Rehabilitation and Recovery
  • Retinal Imaging and Analysis
  • Cerebral Palsy and Movement Disorders
  • Retinal and Optic Conditions
  • Retinal Diseases and Treatments
  • Intraocular Surgery and Lenses
  • Retinal and Macular Surgery
  • Hearing, Cochlea, Tinnitus, Genetics
  • Spatial Neglect and Hemispheric Dysfunction
  • Visual perception and processing mechanisms
  • Vestibular and auditory disorders
  • Geriatric Care and Nursing Homes
  • Health disparities and outcomes
  • Digital Accessibility for Disabilities
  • Multisensory perception and integration
  • Inclusion and Disability in Education and Sport

Université de Montréal
2016-2025

Centre for Interdisciplinary Research in Rehabilitation
2015-2025

Centre intégré de santé et de services sociaux de la Montérégie-Centre
2016-2024

Centre Intégré Universitaire de Santé et de Services Sociaux du Saguenay–Lac-Saint-Jean
2016-2024

Centre Intégré Universitaire de Santé et de Services Sociaux du Centre-Sud-de-l'Île-de-Montréal
2016-2024

Centre intégré de santé et de services sociaux de Chaudière-Appalaches
2016-2024

McGill University
2010-2024

Concordia University
2013-2024

Centre Intégré de Santé et de Services Sociaux des Laurentides
2016-2024

Centre de réadaptation Lethbridge-Layton-Mackay
2018-2024

Abstract The goal of this commentary is to highlight the ageism that has emerged during COVID-19 pandemic. Over 20 international researchers in field ageing have contributed document. This discusses how older people are misrepresented and undervalued current public discourse surrounding It points issues documenting deaths adults, lack preparation for such a crisis long-term care homes, some ‘protective’ policies can be considered patronising initial perception was virus really an adult...

10.1093/ageing/afaa097 article EN other-oa Age and Ageing 2020-04-30

Evaluating the cognitive status of individuals who are visually impaired is limited by design test that used. This article presents data on sensitivity and specificity version Montreal Cognitive Assessment for people impaired. The original validation were reanalyzed, excluding five visual items. results indicated was excellent, while reduced; however, recommended proportionally adjusted cutoff values showed better sensitivity.

10.1177/0145482x1010400606 article EN Journal of Visual Impairment & Blindness 2010-06-01

The objective of the current study was to understand added effects having a sensory impairment (vision and/or hearing impairment) in combination with cognitive respect health-related outcomes among older adults (65+ years old) receiving home care or residing long-term (LTC) facility Ontario, Canada.Cross-sectional analyses were conducted using existing data collected one two interRAI assessments, for (n = 291,824) and LTC 110,578). Items assessments used identify clients single impairments...

10.1371/journal.pone.0192971 article EN cc-by PLoS ONE 2018-02-15

Smartphones and tablets incorporate built-in accessibility features, but little is known about their impact within the visually impaired population. This study explored use of smartphones tablets, degree to which they replace traditional visual aids, factors influencing these decisions. Data were collected through an anonymous online survey targeted toward participants above age 18, whom had been using a smartphone or tablet for at least three months. Among (n = 466), 87.4% felt that...

10.1080/10400435.2019.1682084 article EN cc-by-nc-nd Assistive Technology 2019-11-07

Purpose.: One objective of the Montreal Barriers Study was to examine demographic characteristics people with vision impairment that may hinder their referral or decision access rehabilitation services. Methods.: Data collection conducted in three phases, whereby during phase I, patients ophthalmology department waiting rooms underwent a structured interview ascertain variables be related utilization process. Phase II examined recorded agency file those who had made choice III behavior...

10.1167/iovs.11-8116 article EN Investigative Ophthalmology & Visual Science 2011-10-11

ABSTRACT The purpose of this study was to describe the prevalence hearing loss (HL), vision (VL), and dual sensory (DSL) in Canadians 45–85 years age. Audiometry visual acuity were measured. Various levels impairment severity described. Results extrapolated 2016 Canadian population. In 2016, 1,500,000 males age had at least mild HL, 1,800,000 VL, 570,000 DSL. Among females, 1,200,000 2,200,000 450,000 age, mild, moderate, severe HL prevalent among 13.4 per cent, 3.7 0.4 cent males, 11.3 2.3...

10.1017/s0714980820000070 article EN Canadian Journal on Aging / La Revue canadienne du vieillissement 2020-06-17

Citation information: Wittich W, Watanabe DH & Gagné J‐P. Sensory and demographic characteristics of deafblindness rehabilitation clients in Montréal Canada. Ophthalmic Physiol Opt 2012, 32 , 242–251. doi: 10.1111/j.1475‐1313.2012.00897.x Abstract Purpose: Demographic changes are increasing the number older adults with combined age‐related vision hearing loss, while medical advances increase survival probability children congenital dual (or multiple) impairments due to pre‐maturity or...

10.1111/j.1475-1313.2012.00897.x article EN Ophthalmic and Physiological Optics 2012-02-21

Newspapers are an important source of information. The discourses within the media can influence public attitudes and support or discourage stereotypical portrayals older individuals. This study critically examined a Canadian newspaper in terms depictions age-related health conditions assistive technology devices (ATDs). Four years (2009–2013) Globe Mail articles were searched for relevant to research question. A total 65 retained, critical discourse analysis (CDA) texts was conducted. coded...

10.1093/geront/gnv094 article EN The Gerontologist 2015-07-28

Head-mounted low vision devices have received considerable attention in recent years owing to rapidly developing technology, facilitating ease of use and functionality. Systematic clinical evaluations such remain rare but are needed steer future device development.The purpose this study was investigate, a multicenter prospective trial, the short- medium-term effects head-worn enhancement (eSight Eyewear).Participants aged 13 75 with stable (distance acuity, 20/60 20/400; visual field...

10.1097/opx.0000000000001262 article EN cc-by-nc-nd Optometry and Vision Science 2018-08-29

To the Editor The coronavirus disease 2019 (COVID-19) crisis has accelerated need for cognitive screening adapted to telemedicine. Understandably, clinicians are trying use tools in hand. As codevelopers of Montreal Cognitive Assessment (MoCA1), we have received inquiries on whether and how adapt test, what norms available, validly assess older adults with hearing and/or vision loss. There modified MoCA versions, including one telephone administration2 some that omit visual or auditory items...

10.1111/jgs.16469 article EN Journal of the American Geriatrics Society 2020-04-07

Our objectives were to (1) determine the prevalence of self-reported hearing, vision, and dual sensory (both vision hearing) difficulties in older Canadian adults; (2) examine association between self-report behavioral measures; (3) controlling for measures, variables that might explain difficulty, including age, sex, cultural background, socioeconomic status, nonsensory comorbidities, cognitive function, social factors.We used baseline data collected from 30,097 participants comprehensive...

10.1097/aud.0000000000000992 article EN Ear and Hearing 2021-03-19

The objectives of the study were to determine, among a population-based sample Canadian adults, if risk factors for cardiovascular disease (alone and in combination) associated with hearing loss. Cross-sectional longitudinal associations (the latter about 3 years follow-up) examined. Risk considered included diabetes, dyslipidemia, hypertension, obesity, smoking. We also aimed determine modified by sex age group (45 54, 55 64, 65 74, 75 86 old at baseline).A secondary analysis data collected...

10.1097/aud.0000000000001370 article EN cc-by-nc-nd Ear and Hearing 2023-05-01

The development of International Classification Functioning, Disability, and Health (ICF) Core Sets greatly enhances the global recognition health conditions, thereby advancing research, education, care provision. Aside from work researchers, viewpoint persons with lived experience, for deafblindness needs to include viewpoints professionals expertise unique this condition.

10.23736/s1973-9087.24.08188-7 article EN cc-by-nc-nd European Journal of Physical and Rehabilitation Medicine 2024-03-19

Communications about deafblindness within the clinical and research literature are littered with several terms that have not yet been well established or defined, such as deafblindness, dual sensory loss, combined vision hearing impairment. Depending on context (e.g. service delivery for children, adults, seniors) user educators, clinicians, researchers, clients), these sometimes used interchangeably; practice, however, can be misleading does assist scientific goal of precise communication....

10.1177/0264619613490519 article EN British Journal of Visual Impairment 2013-09-01

Associations between sensory status and cognitive performance are now widely reported. However, important open questions remain, including whether the associations similar across modalities, predicts independent of task modality, demographic/health variables moderate these associations. We examined data from a population sample 30,029 Canadians aged 45-85 (the Canadian Longitudinal Study on Aging). Hearing was measured as better ear pure-tone threshold average vision better-eye...

10.1037/pag0000716 article EN Psychology and Aging 2022-11-10

The World Health Organization’s (WHO) International Classification of Functioning, Disability, and (ICF) is a framework designed to describe measure health disability. It examines how person’s condition affects their daily life overall functioning considers not just the physical or mental limitations that may come from but also environmental factors (like accessibility social support) influence ability participate in life. An ICF Core Set short list most important consider when looking at...

10.1177/02646196251320351 article EN cc-by-nc British Journal of Visual Impairment 2025-03-04

There are currently no best practice training methods with communication assistive devices (CAD) for individuals deafblindness using a braille display notetaker connected to an iPhone. Therefore, capture adoption and usability of CAD in clinic, the Technology development evaluation model Schulz et al. (2015) was applied. Objectives were 1-to measure level difficulty life habits involving before, during after CAD, 2-to document feasibility face-to-face remote communication, 3-to simulate...

10.1080/17483107.2025.2470463 article EN Disability and Rehabilitation Assistive Technology 2025-03-04

Online educational programs focused on ways to improve brain health could increase participant literacy, empowerment, and engagement in activities that support personal health, potentially reducing dementia risk. Our goal was develop an evidence-based online program with a focus risk protective factors for dementia. Here we present the rationale features of include results from pilot study assessed usability acceptability. This project is part Can-Thumbs UP (CTU) initiative. An Intervention...

10.1016/j.tjpad.2025.100134 article EN cc-by-nc-nd The Journal of Prevention of Alzheimer s Disease 2025-03-01
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