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The hidden vision damage brain injury leaves behind

NCT ID NCT07858708

Knowledge-focused Sponsor: Charles University, Czech Republic 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 This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Oct 05, 2026 · Last updated Oct 06, 2026 · Updated 1 time

Summary

Researchers at Charles University are studying how often vision problems appear in adults who have had a stroke, traumatic brain injury, or brain tumor. About 108 participants complete a standardized eye exam covering five areas: sharpness, contrast sensitivity, visual field, eye movement, and visual attention. Participants also fill out a 33-item questionnaire about how their vision affects daily activities. The study compares the exam findings with the questionnaire scores to see whether people with more measured vision problems report more difficulty in daily life.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If researchers map how brain injury affects different parts of vision, doctors could one day screen for these problems more reliably and connect them to the daily difficulties patients describe.
What could go wrong
This study only observes and measures people at a single point in time, so it cannot show cause and effect or whether vision improves. Results from 108 adults at one site may not apply to everyone with brain injury.

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.

Participants

About 108 people

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

Expected to start

Oct 2026

An estimate. Start dates often move.

Expected to finish

Feb 2029

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.

Who is studied

The study population will consist of adults with acquired brain injury receiving inpatient or outpatient rehabilitation and neurological care at multiple clinical sites in the Czech Republic. Participants will be recruited from patients referred for rehabilitation assessment and treatment at participating healthcare facilities. The study population will include individuals with stroke, traumatic brain injury, and brain tumors at different stages of recovery.

Ages

18 to 85 years

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: * Adults aged 18-85 years. * Diagnosis of acquired brain injury, including stroke, traumatic brain injury, or brain tumor. * Ability to participate in the required study assessment. * Ability to understand the study procedures and provide informed consent. Exclusion Criteria: * Pre-existing ocular or visual disorder of sufficient severity to prevent valid assessment of study visual outcomes or to preclude attribution of the identified impairment to acquired brain injury. * Severe communication impairment preventing reliable completion of the required study assessments. * Medical, neurological, behavioral, or other condition preventing reliable completion of the required study assessments.

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Conditions

The condition(s) this trial relates to.

brain injury brain neoplasm stroke disorder traumatic brain injury vision disorder

As listed by the trial registrant

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

Brain injuries Stroke Vision disorder

How to take part

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  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

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  3. A doctor treating you

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Contacts and locations

Locations

  • General University Hospital in Prague, 1. Faculty of Medicine, Charles University

    Prague, Česká Republika, 12808, Czechia

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