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Binocular Vision DysfunctionVHNCT01632787

Utility of a Survey Instrument to Predict Benefit From a Novel Treatment for Vertical Heterophoria

An observational study of Binocular Vision Dysfunction and Vertical Heterophoria, run by Vision Specialists of Birmingham at 2 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Patients with acute exacerbation of chronic headache disorder present frequently to the Emergency Department (ED) for pain management. A novel etiology of headaches is Vertical Heterophoria (VH), a poorly understood and little recognized binocular vision malady that when treated with realigning prismatic spectacle… Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Questionnaires and Optometrist Prism Challenge/Treatment
How many people
86 participants
Where
2 sitesUnited States
Study dates
Apr 2012to Apr 2016
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Adult patients presenting to the Emergency Department at St. Joseph Mercy Hospital with complaint of non-traumatic exacerbation of chronic headaches of previously unknown etiology.

Who may be able to join

  • Greater than or equal to 18 years old
  • Ability to speak and read English
  • Chronic headache disorder as defined by physician diagnosis, or greater than three months of headaches requiring symptom relief with medication more than once every two weeks, or having headaches so severe that previous Emergency Department evaluation or treatment was necessary

Who cannot join

  • Symptoms directly caused by trauma within the last three months
  • Known TMJ disorder and presenting with TMJ pain
  • Suspected infectious sinusitis or meningitis
  • Pain originating from ear
  • Pain originating from dental source
  • Patient not willing or able to travel to study optometrist for follow-up
Show all 13Show fewer
  • Known history of cerebral aneurysm
  • Known history of brain tumor
  • Without previous CT, MRI, or other imaging to assess patient's headache disorder
  • Patient a prisoner
  • Patient under temporary or permanent custodianship
  • Patient currently with questionable state of mental competence
  • Treating physician or study investigator believes patient to be inappropriate for study participation

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Vision Specialists of Michigan

    Bloomfield Hills, Michigan, 48302

  • St. Mary Mercy Hospital

    Livonia, Michigan, 48154

Other trials in United States

About this study

Patients with acute exacerbation of chronic headache disorder present frequently to the Emergency Department (ED) for pain management. A novel etiology of headaches is Vertical Heterophoria (VH), a poorly understood and little recognized binocular vision malady that when treated with realigning prismatic spectacle lenses results in marked reduction in headache and other associated VH symptoms.

This study aims to determine the accuracy of the Vertical Heterophoria Symptom Questionnaire (VHSQ) in identifying a ED headache patients who will experience significant reduction in VH symptoms with use of realigning prismatic spectacle lenses. This study's secondary purpose is to determine if VH is a common cause of chronic headache disorders in ED headache patients.

To achieve these goals, a prospective observational study will be performed on ED headache patients > 18 years old. All will be given the VHSQ, and all will be assessed for a diagnosis of VH by an optometrist who will utilize a novel VH testing method. High and low score groups on the VHSQ will then be compared to each other to determine the prevalence of VH in each.

Being tested
Questionnaires and Optometrist Prism Challenge/Treatment
Keywords
Anxiety, Binocular, Chronic Headache, Dizziness, Vertical Heterophoria, Vision Dysfunction
Medical subject headings
Anxiety Disorders, Headache Disorders, Dizziness, Vision Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Questionnaires and Optometrist Prism Challenge/TreatmentOther

    A Vertical Heterophoria Symptom Questionnaire (VHSQ) as well as Headache Disability Index (HDI) survey is used on all Emergency Department (ED) headache patients to assess medical history and symptom burden. Prism testing (or Prism Challenge) is performed by the study optometrist to identify those who have Vertical Heterophoria (VH). Prism Challenge is similar to prescription eyeglass testing, but with unique lenses that are meant to reduce strain on eyes that are misaligned. Follow-up questionnaires are then administered to assess any improvement in symptom burden.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. VH Diagnosis

    Significant reduction of symptom burden as reflected on follow-up Severity Index (SI) score with prismatic spectacle challenge and treatment.

    Measured: 2-4 Weeks

  2. VH Diagnosis

    Significant reduction of symptom burden as reflected on follow-up Vertical Heterophoria Symptom Questionnaire (VHSQ) score with prismatic spectacle challenge and treatment.

    Measured: 2-4 Weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Jul 2012 (estimated)
  2. Study startApr 2012
  3. Primary completionApr 2016
  4. Study completionApr 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
86 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01632787
Sponsor's protocol ID
VSofM 4-2012
Acronym
VH
Status last verified
Oct 2017
First submitted
15 May 2012
Last updated
1 Nov 2017
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Binocular Vision Dysfunction and Vertical Heterophoria, run by Vision Specialists of Birmingham at 2 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 1 Nov 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

VH Diagnosis (time frame: 2-4 Weeks). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Nov 2017.

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