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NystagmusNCT00001861

Screening for Studies on Nystagmus and Strabismus

An observational study of Nystagmus and Strabismus, run by National Eye Institute (NEI) at 1 site 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

This screening protocol is designed to help recruitment patients for National Eye Institute (NEI) studies on nystagmus and strabismus. Patients must meet specific requirements of a research study, and this protocol serves as a first step for admitting patients to an appropriate program. Read more about this study

Who is it for?
Any age
Conditions the study is for
Nystagmus, Strabismus
How many people
1,500 participants
Where
1 siteUnited States
Study dates
29 Jan 1999to 10 Dec 2007
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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Inclusion and exclusion criteria vary with the particular protocol for which a patient is being screened.
  • In addition to those diagnoses currently under study, subjects with unusual, interesting, or unknown conditions that require the establishment of a diagnosis may be eligible for inclusion in this study.

Who cannot join

None listed.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • National Institutes of Health Clinical Center, 9000 Rockville Pike

    Bethesda, Maryland, 20892

Other trials in United States

About this study

Official title: Screening Study for the Evaluation and Diagnosis of Potential Research Subjects With Nystagmus or Strabismus

This screening protocol is designed to help recruitment patients for National Eye Institute (NEI) studies on nystagmus and strabismus. Patients must meet specific requirements of a research study, and this protocol serves as a first step for admitting patients to an appropriate program.

Candidates will undergo a medical history, physical examination, eye examination and blood test. The eye examination includes measurement of eye pressure and dilation of the pupils to fully examine the lens, vitreous and retina. Specialized tests will be done only if needed to determine eligibility for a nystagmus or strabismus study. These include routine laboratory tests, non-invasive imaging, questionnaires, and other standard tests. If needed, a test called oculography may be done to record eye movements. There are two procedures for recording and documenting these movements. In the infrared system, the patient wears a pair of glasses or goggles and looks at a red light while the head is kept steady. In the search coil system, the eye is numbed with anesthetic eye drops and a soft contact lens is placed on the eye. Then the patient looks at a red light while the head is held still. Each oculography session lasts 20 to 30 minutes. Photographs of the eye may be taken.

When the screening is completed, patients will be informed of their options to participate in a study. Patients who are ineligible for a current study will be informed of alternative treatments or options. No treatment is offered under this protocol.

Read the detailed description

This protocol is designed for the screening of patients with either diagnosed or undiagnosed conditions, and serves as a first step for individuals who may be eligible and wish to participate in National Eye Institute (NEI) clinical research studies.

Each individual will be thoroughly evaluated during the screening process to determine if they are suitable candidates for inclusion in any of the NEI ongoing studies. The screening evaluation will include past and current medical histories, and an appropriate physical examination. Other routine diagnostic procedures and tests may also be completed in order to help determine a subject's eligibility. These tests and procedures are of minimal risk. Once the screening process is completed and their eligibility assessed, the subjects will be informed of their options to participate in one or more of the current clinical research studies. If no appropriate protocol is identified, recommendations for other treatment options may be given to the individual, their primary doctor or referring physician.

Keywords
Eye Movements, Amblyopia, Orthoptics, Lazy Eye, Eye Development, Nystagmus, Strabismus, Screening Protocol, Eye Movement Disorders
Medical subject headings
Nystagmus, Pathologic, Strabismus, Amblyopia, Ocular Motility Disorders

Timeline

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

  1. First posted4 Nov 1999 (estimated)
  2. Study start29 Jan 1999
  3. Study completion10 Dec 2007

Resources

More details

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

Study design
Study type
Observational
Enrolment
1,500 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00001861
Sponsor's protocol ID
990035
Other IDs
99-EI-0035
Status last verified
10 Dec 2007
First submitted
3 Nov 1999
Last updated
2 Jul 2017
Results posted
No

Publications

  • Miura K, Hertle RW, FitzGibbon EJ, Optican LM. Effects of tenotomy surgery on congenital nystagmus waveforms in adult patients. Part I. Wavelet spectral analysis. Vision Res. 2003 Oct;43(22):2345-56. doi: 10.1016/s0042-6989(03)00409-7.

    PubMed 12962991

Questions about this trial

What is this clinical trial studying?

An observational study of Nystagmus and Strabismus, run by National Eye Institute (NEI) at 1 site 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 2 inclusion and 0 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 2 Jul 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00001861, which also lists 1 linked publication.

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 2 Jul 2017.

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