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Behavioural Intervention

Multiplexing Prism for Monocular Vision

N/A

Recruiting

Led By Jaehyun Jung, PhD

Research Sponsored by Massachusetts Eye and Ear Infirmary

Eligibility Criteria Checklist

Specific guidelines that determine who can or cannot participate in a clinical trial

Must have

Loss of vision in one eye (no light perception/enucleation/evisceration) for >1 year

No medical health issues such as seizures, motor movements problem

Timeline

Screening 3 weeks

Treatment Varies

Follow Up approximately 3 sessions, up to 3 hours for each session, any time within 4 month period

Awards & highlights

No Placebo-Only Group

Summary

This trial aims to test a special device called a multiplexing prism that can help people with one eye see better. Researchers want to see if this device can make it easier for people to notice pedestrians

Who is the study for?

This trial is for individuals who have lost vision in one eye (with no light perception) for over a year, but have good corrected visual acuity better than 20/32 and no field defects in their seeing eye. They should not have health issues like seizures or motor movement problems.

What is being tested?

The study is testing a device called multiplexing prism designed to widen the field of view for people with monocular vision. Its effectiveness will be evaluated through a simulated walking task to see if it helps detect pedestrians that could collide with them.

What are the potential side effects?

While specific side effects are not listed, devices like the multiplexing prism may cause discomfort, disorientation, or difficulty adapting to the new visual information provided by the expanded field of view.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below

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I have been blind in one eye for more than a year.

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I do not have seizures or problems with motor movements.

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My corrected vision in my seeing eye is better than 20/32.

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My vision in the seeing eye covers more than 45 degrees.

Timeline

Screening ~ 3 weeks3 visits

Treatment ~ Varies

Follow Up ~ approximately 3 sessions, up to 3 hours for each session, any time within 4 month period

Screening ~ 3 weeks

Treatment ~ Varies

Follow Up ~approximately 3 sessions, up to 3 hours for each session, any time within 4 month period

This trial's timeline: 3 weeks for screening, Varies for treatment, and approximately 3 sessions, up to 3 hours for each session, any time within 4 month period for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.

Primary study objectives

Mean response time to detect colliding pedestrian

Secondary study objectives

Pedestrian Detection Rate

Awards & Highlights

No Placebo-Only Group

All patients enrolled in this study will receive some form of active treatment.

Trial Design

1Treatment groups

Experimental Treatment

Group I: Detection of colliding pedestrianExperimental Treatment1 Intervention

Participants will perform a simulated walking task in which surrounding pedestrians will walk towards and make a collision. Participants will respond by pressing buttons to indicate the direction of the colliding pedestrians. Participants will perform the task with and without the multiplexing prism in random orders.

0 / 4Eligibility criteria met