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The Prism Adaptation Study (PAS)

NCT00000121 · Status: COMPLETED · Phase: PHASE3 · Type: INTERVENTIONAL

Last updated 2009-09-17

No results posted yet for this study

Summary

To determine whether the preoperative use of prisms in eyeglasses can improve the outcome of surgery for acquired esotropia, a type of strabismus.

To determine whether patients who respond to prism adaptation by developing a new stable angle of -deviation have a better surgical result than do patients who do not respond to prism adaptation.

To determine whether patients who respond to prism adaptation are more accurately corrected by operating for the prism-adapted angle or the original angle of deviation.

To determine the usefulness of certain input variables (e.g., age at the time of surgery, size of the deviation, visual acuity, binocular function, refractive error) in predicting which patients are more likely to benefit from prism adaptation.

Conditions

  • Esotropia

Interventions

DEVICE

Prisms in Eyeglasses

Sponsors & Collaborators

  • National Eye Institute (NEI)

    lead NIH

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT

Eligibility

Min Age
3 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
1984-03-31
Completion
1989-05-31

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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 NCT00000121 on ClinicalTrials.gov