NCT06027216CompletedNot Applicable
Monocular Visual Confusion for Field Expansion
Massachusetts Eye and Ear Infirmary2 sites in 1 country30 target enrollmentStarted: December 27, 2023Last updated:
Conditions
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Enrollment
- 30
- Locations
- 2
- Primary Endpoint
- Gain in Visual Field With the Multiplexing Prism
Study Overview
Brief Summary
The investigators are developing an assistive device, known as multiplexing prism that expands the field of view for individuals with acquired monocular vision (loss of an eye). The investigators are testing a simplified design and fitting protocol to provide field expansion for individuals with acquired monocular vision.
Study Design
- Study Type
- Interventional
- Allocation
- Na
- Intervention Model
- Single Group
- Primary Purpose
- Device Feasibility
- Masking
- None
Eligibility Criteria
- Ages
- 16 Years to — (Child, Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •No medical health issues such as seizures, motor movements problem
- •Loss of vision in one eye (less than 20/200) for >1 year)
- •Visual acuity of the seeing eye: Better than 20/32 visual acuity with correction
- •No visual field defect in the seeing eye (nasal field of at least >45degree)
- •No medical health issues such as seizures, motor movements problem
Exclusion Criteria
- •Patients with any physical or mental disabilities, including cognitive dysfunction, balance problems, or other deficits that could impair their ability to respond to the stimuli presented in this study will be excluded
- •Any person with motor movements problem (e.g., unable to use extremities)
Outcomes
Primary Outcomes
Gain in Visual Field With the Multiplexing Prism
Time Frame: Visit 2 of Study (approximately 2-3 weeks after 1st Visit)
Field expansion is calculated based on the difference of the maximum field of view on the nasal side of the seeing/functioning eye (same side as the blind eye) with and without multiplexing prism.
Secondary Outcomes
- Maximum Extent of Nasal Visual Field With the Multiplexing Prism(Visit 2 of Study (approximately 2-3 weeks after 1st Visit))
Investigators
Eli Peli
Senior Scientist
Massachusetts Eye and Ear Infirmary
Study Sites (2)
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