Actively Recruiting
Obstacle Negotiation in Older People With and Without Vision Impairment
Led by Indiana University · Updated on 2025-11-13
200
Participants Needed
1
Research Sites
298 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
Falls are common among people with vision impairment and can lead to devastating health consequences. Understanding the functions of vision and how the visual characteristics of obstacles in the walking path impact the gait of people with vision impairment is necessary to create strategies to prevent falls in this population. The purpose of this study is to determine how adults with vision impairment change their gait behavior when stepping over obstacles that vary in height and contrast to the ground. We will then determine the mechanisms of gaze behavior that correlate to the gait behavior.
CONDITIONS
Official Title
Obstacle Negotiation in Older People With and Without Vision Impairment
Who Can Participate
Eligibility Criteria
You may qualify if you...
-
Age 18 or over
-
Able to walk independently
-
Either have normal vision, or impaired vision.
- Impaired vision is defined as binocular visual acuity of 20/25 or worse with or without a central scotoma; and/or binocular visual field that is restricted to an average of 100 degrees in diameter or less
- Control subjects will have visual acuity of 20/40 or better.
You will not qualify if you...
- Not cleared by a medical provider for moderate physical activity
- Self-report or have a history of: vestibular disorder or deafness
- Medical history of any condition that affects the ability to walk for up to 2 hours with breaks, such as feeling dizzy or faint, chest pain, palpitations, pain or numbness in the legs, shortness of breath,
- Cognitive limitations either by self-report or a score on the Mini Mental State Exam below 24 (out of 30)
- Walking or gait abnormalities, such as those caused from an injury, surgery, severe arthritis, or neurological condition such as Parkinson's disease
- Unable to walk without any walking aids such as a walker, cane, guide dog, or oxygen tank.
- Does not speak English
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 1 location
1
Indiana University
Bloomington, Indiana, United States, 47405
Actively Recruiting
Research Team
K
Kierstyn A Napier-Dovorany, OD
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
NON_RANDOMIZED
Model
PARALLEL
Primary Purpose
BASIC_SCIENCE
Number of Arms
2
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