A5084466724- Ophthalmology and Visual Impairment Studies
- Retinal Imaging and Analysis
- Winter Sports Injuries and Performance
- Visual perception and processing mechanisms
- Glaucoma and retinal disorders
- Acute Ischemic Stroke Management
- Spatial Neglect and Hemispheric Dysfunction
- Sports Performance and Training
- Retinal and Optic Conditions
- Injury Epidemiology and Prevention
- Older Adults Driving Studies
- Balance, Gait, and Falls Prevention
- Foot and Ankle Surgery
- Sports injuries and prevention
- Urban Green Space and Health
- Neural and Behavioral Psychology Studies
- Traffic and Road Safety
- Color perception and design
- Diverse Approaches in Healthcare and Education Studies
- Urban Transport and Accessibility
University of Waterloo
2019-2025
Hong Kong Eye Hospital
2024
Issues Research
2024
This study developed a practical screening tool to identify reduced habitual vision (RHV) in hospital rehabilitation units. would enhance patient care by enabling timely interventions resource-limited settings. The aimed develop and implementable patients with RHV Potential measures, questions, demographic variables were considered determine the optimum combination. cross-sectional recruited 112 adult inpatients (aged 18+ years) from three units an acute Ontario, Canada, between October 2018...
Animal models indicate that exercise promotes visual cortex neuroplasticity; however, results from studies have explored this effect in humans are mixed. A potential explanation for these discrepant is the relative timing of and task used to index neuroplasticity. We hypothesized a close temporal pairing training on vision would enhance perceptual learning (a measure neuroplasticity) compared non control. Thirty-two participants (mean age = 31 years; range, 20-65; SD 11.1; 50:50 sex ratio)...
The International Paralympic Committee Classification Code requires sports to develop evidence-based, sports-specific classification systems. This project aimed determine the minimum eligibility criteria for Para nordic and alpine skiing by simulating vision impairments measuring impact of on performance in twenty-two (28.09 ± 9.68 years; 16 male) eleven (37.91 18.9 years, 11 able-sighted skiers. Eight visual acuity (VA)/contrast sensitivity (CS) (Cambridge Simulation Glasses, University...
Currently, Paralympic skiers with vision impairment are allocated to classes based only on their better eye static visual acuity and field diameter. These studies were conducted investigate whether a broad range of functions different among groups levels skiing performance.Static dynamic acuities, contrast sensitivity, light glare recovery, motion perception, assessed binocularly in elite Para nordic (n = 26) alpine 15) at 3 international events. Skiing performances calculated using modified...
Purpose: Contrast sensitivity (CS) is predictive of various aspects an individual's functional vision, such as recognizing faces and driving. Currently available CS charts are limited in terms the spatial frequencies they can test and/or contrast resolution targets present. The traditional methods for measuring full functions (CSFs) time consuming. purpose this study was to examine feasibility using quick CSF method a low vision population assess relationships with other visual functions,...
Nordic and alpine skiing-related visual tasks such as identifying hill contours, slope characteristics, snow conditions increase demands on contrast processing other functions. Prospective observational studies were conducted to assess the relationships between skiing performance a broad range of functions in nordic skiers with vision impairments. The study hypothesized that sensitivity (CS), acuity (VA), field (VF) would be predictive performance. Binocular static VA, CS, light sensitivity,...
Significance Visual midline shifts are thought to occur post-stroke and be a risk factor for falls. This study investigates new method quantifying visual shifts, first step toward developing greater understanding of shift. Purpose standardized the parameters novel gauge, compared results with current clinical method, presents normative data repeatability both methods. Methods Ninety-three participants without neurological or ocular problems were recruited in Canada Hong Kong. In experiment...
Background This study standardized the parameters of a novel visual midline gauge and presents normative data, which can be used by optometrists in assessment midline. Methods Ninety-three participants from three age groups (18 to 44, 45 64, > 65 years) without history significant neurological or ocular problems were recruited Waterloo, Canada Hong Kong. In experiment 1, perceived horizontal vertical was measured using for 2 speeds repositioning methods. 2, different distances (25, 50 100...
<title>Abstract</title> A visual midline (VM) shift may be experienced by some individuals post-stroke, but its associations with other variables are unclear. This study explored the relationships between VM and vision non-vision in healthy adults. Normative data were calculated, repeatability was assessed for each test. 93 participants without a history of or neurological impairment recruited. Horizontal vertical measured using gauge. During visit 1, line bisection test (LBT) spatial...
Stroke survivors often experience various visual consequences that impact their daily life and may benefit from interventions. However, some of these usually go unaddressed as optometrists are rarely included in the post-stroke care pathway. Yet, interested contributing to patients. This survey evaluated readiness diagnosing managing disorders specific stroke survivors.
Objectives A survey was conducted to describe the current status of optometric awareness and involvement regarding post-stroke management as literature suggests that visual impairment often goes undiagnosed unmanaged in stroke survivors.