Multiplexing Prism Fitting for Field Expansion of Monocular Vision

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-12-27

Study Completion Date

2024-12-31

Brief Summary

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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.

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Detailed Description

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Conditions

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One Eye Blindness Blind Left Eye Blind Right Eye

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Individuals with Acquired Monocular Vision/ Blindness in One Eye

Primary Study Purpose

DEVICE_FEASIBILITY

Blinding Strategy

NONE

Study Groups

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Field Expansion

Field of view on the nasal side (same side as the blind eye) with and without multiplexing prism

Group Type EXPERIMENTAL

Multiplexing Prism

Intervention Type DEVICE

Multiplexing prism is designed for spatial vision multiplexing. It allows partial light transmission through the prism allow the observer to simultaneously see the physical world through the prism and see the "shifted view" from the non-seeing side. It is developed to expand the field of view of individuals with just one eye.

Interventions

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Multiplexing Prism

Multiplexing prism is designed for spatial vision multiplexing. It allows partial light transmission through the prism allow the observer to simultaneously see the physical world through the prism and see the "shifted view" from the non-seeing side. It is developed to expand the field of view of individuals with just one eye.

Intervention Type DEVICE

Eligibility Criteria

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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)

Minimum Eligible Age

16 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No