SmartHMD for Improved Mobility
Low Vision, Orientation, Mobility Limitation
About this trial
This is an interventional other trial for Low Vision
Eligibility Criteria
Inclusion Criteria:
- Diagnosed with low vision
- Self reported difficulty with mobility and finding doors (either indoors or outdoors) and using signalized crosswalks.
- Stratify vision with half best corrected vision better than or equal to 20/100, and other half best corrected vision worse than 20/100
- Ability to use smart phone
- Ability to cooperate for tests
- Able to participate in all visits
Exclusion Criteria:
- Unable to use head mounted display or smart phone technology
- Unstable age-related macular degeneration within the past 3 months
- Unstable diabetic retinopathy within the past 3 months
- Unstable diabetes within the past 3 months
- Ocular infection or ocular inflammation in the past 3 months
- Ocular trauma within the past 6 months
- Intraocular surgery within 6 months
- Optical coherence tomography retinal findings of concern to investigator for unstable vision during the study
- Women who are pregnant (due to risk of falls and change in gait).
- Uncontrolled seizure disorder in the past 6 months
- Cerebrovascular accident occurring in the past 6 months
- Parkinson disease or neurological condition that limits mobility
- Alzheimer disease or other forms of dementia
- Conditions of concern to investigator that would confound orientation and mobility, such as severe arthritis, pain that limits ambulatory activities, or orthopedic surgery (e.g., hand, arm, shoulder, knee, or hip surgery within 12 months)
Sites / Locations
- North Campus Research ComplexRecruiting
Arms of the Study
Arm 1
Experimental
HMD
We have several versions (listed below) of a headworn smartHMD. Each can provide verbal and/or tactile feedback to the user. Feedback is controlled by either the experimenter or by computer vision algorithms. 1. The ODG Smartglasses is commercially available. This system uses computer vision to guide a user to the destination using audio and/ or vibration feedback. 2) Tactile stimulator array. This device uses an Arduino Micro, HC-05 Bluetooth Module, L293D Motor Driver and coin vibration motors attached to a head-worn headband or glasses frame. The motors can be controlled directly by an experimenter or by computer vision algorithms. 3) Computer Vision Navigation prototyping system consists of two components: Intel RealSense camera and Alienware M15 laptop. All participants will receive the same 3 interventions: no HMD used, HMD worn but not active, and HMD worn and active. Participants may be tested with any or all of the systems described above.