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Convergence Insufficiency Treatment Trial (CITT)

NCT00338611 · Status: UNKNOWN · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 221

Last updated 2010-03-25

No results posted yet for this study

Summary

The purposes of the CITT are:

* To determine whether Home-based Pencil Push-up therapy, Home-based Pencil Push-ups with Computer Vision Therapy/Orthoptics or Office-based VT/Orthoptics more effective than placebo treatment, and whether there are differences between the three treatments in improving subject symptoms and signs.
* To evaluate whether improvements in outcome measures are still present after one year of observation.

Conditions

  • Convergence Insufficiency
  • Binocular Vision Disorder

Interventions

BEHAVIORAL

Home-based Pencil Push-Up Therapy

Exercise in which patients visually followed a small letter on a pencil as they moved the pencil closer to the bridge of their nose

BEHAVIORAL

Home-based Pencil Push-ups with Computer Vision Therapy/Orthoptics

Exercise in which patients visually followed a small letter on a pencil as they moved the pencil closer to the bridge of their nose combined with additional computer vision therapy

BEHAVIORAL

Office-based Vision Therapy/Orthoptics

Weekly hour-long sessions of office-based vision therapy with a trained therapist and performed at-home reinforcement exercises

BEHAVIORAL

Placebo Office-based Vision Therapy/Orthoptics

Vision activities designed to simulate office-based therapy

Sponsors & Collaborators

  • National Eye Institute (NEI)

    lead NIH

Principal Investigators

  • Mitchell Scheiman, OD · Pennsylvania College of Optometry

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
9 Years
Max Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2005-07-31
Primary Completion
2008-09-30
Completion
2009-09-30

Countries

  • United States

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 NCT00338611 on ClinicalTrials.gov