Den här översättningen är inte klar ännu. Den här sidan är just nu på engelska.

Gå till den engelska sidan

Cure My Disease

Don't miss your cure!

 Log in / Sign up

Why do some blind people see things that Aren't there? new study aims to find out

NCT ID NCT07563101

Knowledge-focused Sponsor: Fondazione Policlinico Universitario Agostino Gemelli IRCCS Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at how common Charles Bonnet Syndrome (CBS) is in people with vision loss from conditions like macular degeneration or glaucoma. CBS causes complex visual hallucinations without mental illness. Researchers will survey 640 participants to measure how often it happens and how it affects anxiety, mood, and quality of life. No treatment is given; the goal is to better understand and identify the condition.

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 successful, this study could improve how doctors identify and support patients with Charles Bonnet Syndrome, reducing fear and isolation.
What could go wrong
This is an observational study, not a treatment trial. It will not test any therapy, so it cannot directly improve symptoms.

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 640 people

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

Started

Jan 2025

Expected to finish

Jan 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.

Who is studied

Visually impaired individuals with central and peripheral defects who access the center for visual rehabilitation.

Ages

40 to 70 years

Sex

Anyone

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: * Best corrected visual acuity between 1/20 (1.0 LogMAR) and 3.2/10 (0.5 LogMAR) in cases of central vision impairment. * Residual binocular visual field ≤ 60% in cases of peripheral vision impairment. * Patients with age-related macular degeneration, Stargardt's disease, or glaucoma. * Age between 40 and 70 years. * Signed informed consent. Exclusion Criteria: * Age under 40 years. * Clear cognitive impairments that reduce patient reliability. * Psychiatric disorders. * Refusal to sign informed consent to participate in the study. * Mental State Examination (MMSE) score below 22.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for Age-related macular degeneration are added.

Vår säkerhetsrekommendation!

Genom att skicka in godkänner du våra Användarvillkor

Conditions

The condition(s) this trial relates to.

age-related macular degeneration Charles bonnet syndrome glaucoma Stargardt disease

As listed by the trial registrant

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

Charles bonnet syndrome

How to take part

Only the study team decides who joins. These are the ways to reach them.

  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.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • fondazione Policlinico Universitario A. Gemelli IRCCS, Polo Nazionale Ipovisione

    Roma, 00168, Italy

More trials for these conditions

Other studies related to the condition(s) this trial covers.