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Can special prisms in a VR headset help people with tunnel vision avoid collisions?

NCT ID NCT05141604

Symptom relief Sponsor: Massachusetts Eye and Ear Infirmary Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jul 02, 2026 · Updated 1 time

Summary

This study tests a virtual reality headset that uses special prisms to expand the field of view for people with tunnel vision or hemianopia (blindness in half the visual field). Fifteen participants will walk in a real environment while wearing the headset and respond to virtual oncoming pedestrians. The goal is to see if the prisms help them detect hazards faster and move more safely.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 15 people

The number the study aims to enrol. It can still change while the study runs.

Started

May 2022

Expected to finish

May 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

14 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion criteria: * At least 14 years of age (no upper age limit) * In sufficiently good health to be able to complete sessions lasting 2-3 hours * Able to understand English * Able to give voluntary, informed consent * Able to independently move short distances * Binocular vision parameters within normal limits (Stereopsis ≤ 100 arc sec on any stereo test) * Visual field loss, either peripheral field loss (\<30 degrees diameter) or hemianopic field loss (blind in half of visual field) * Better than 20/100 visual acuity in the worse eye Exclusion criteria: * Patients with any self-reported 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 * Any person with a self-reported medical history (such as pacemaker use or photosensitive epilepsy) or physical condition listed on the device manual of the Oculus / HMD system used for the experiment as a contraindication * Any self-reported history of seizures (any type) in the last 6 months

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Conditions

The condition(s) this trial relates to.

Hemianopsia

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Hemianopsia Homonymous hemianopia Tunnel vision Visual field constriction bilateral Visual field defect homonymous bilateral Visual field defect, peripheral

Contacts and locations

Locations

  • Schepens Eye Research Institute

    Boston, Massachusetts, 02114, United States

More trials for these conditions

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