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Strabismus Measurements Using Automated 3D Video Oculography

University of Zurich (UZH) logo

University of Zurich (UZH)

Status

Completed

Conditions

Strabismus

Treatments

Device: strabismus video goggles

Study type

Interventional

Funder types

Other

Identifiers

NCT02228070
KEK-ZH-Nr. 2014-0481

Details and patient eligibility

About

Measuring ocular motility and alignment is important for diagnosing different causes of strabismus, following patients recovering from cranial nerve palsies, preparing patients for strabismus surgery and follow-up post surgery. The current clinical gold standards for measuring ocular alignment are the Hess screen and the Harms tangent screen. These tests are accurate, but require patient cooperation, and are not objective because the patient has to indicate the position of the light he sees on the screen. Our objective is to develop an accurate and easy to use goggles system to measure ocular alignment and motility using 3D video oculography.

Enrollment

58 patients

Sex

All

Ages

11+ years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Patients 11 years or older
  • congenital strabismus
  • acquired strabismus
  • paretic strabismus (oculomotor, abducens and trochlear nerves)
  • before and after strabismus surgery
  • normal controls

Exclusion criteria

  • Patients unable to sign informed consent
  • Patients with significantly impaired vision
  • Patients unable to cooperate with standard strabismus workup (including Hess and Harms tests)
  • For sub-study: intolerance to scleral search coils

Trial design

Primary purpose

Diagnostic

Allocation

N/A

Interventional model

Single Group Assignment

Masking

None (Open label)

58 participants in 1 patient group

strabismus video goggles
Experimental group
Treatment:
Device: strabismus video goggles

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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