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Early Versus Delayed Surgery for Infantile Esotropia

NCT01166503 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 71

Last updated 2018-06-12

No results posted yet for this study

Summary

The goal of this study is to determine whether corrective surgery done earlier than the current standard can better improve the visual and eye movement deficits in children with infantile esotropia (crossed eyes in infancy).

Conditions

  • Esotropia

Interventions

PROCEDURE

mVEP Testing

Five small sensors are placed on the head which record the brain's response to moving stripes that are displayed on a computer screen. Each eye is tested while the other eye is patched. Each recording trial lasts about 10 seconds, and several trials are done for each eye.

PROCEDURE

Stereoacuity Testing

Subjects will have their 3D perception measured using standard clinical stereo tests (Randot, Lang, Titmus).

PROCEDURE

Optokinetic nystagmus testing

Subjects will be asked to view a screen with vertical stripes moving in both leftward and rightward directions while their eye movements are recorded using a remote video-based eye tracker.

PROCEDURE

Motion detection testing

Subjects will view a computer screen that has two panels of dots on them. The subject will be required to pick which panel has a section of dots that are moving in a specific direction (ie. nasalward/temporalward).

PROCEDURE

Motion discrimination testing

Subjects will view a computer screen that has two panels of randomly moving dots on them. The subject will be required to pick which panel has a section of dots that are moving in a specific direction (ie. nasalward/temporalward).

Sponsors & Collaborators

  • The Hospital for Sick Children

    lead OTHER

Principal Investigators

  • Agnes Wong, MD · The Hospital for Sick Children, Toronto Canada

Eligibility

Min Age
3 Months
Max Age
23 Months
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2004-05-31
Primary Completion
2018-04-02
Completion
2018-04-26

Countries

  • Canada

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01166503 on ClinicalTrials.gov