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Development of the Eye Motor System During the First 7 Months of Life in Infants With and Without a Family History of Cross-Eye

NCT00001143 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 20

Last updated 2008-03-04

No results posted yet for this study

Summary

Little is known about the development of the ocular, or eye, motor system (the parts of the brain that control how the eyes move) in children. Recent technological and methodological advances now enable researchers to investigate the visual system and ocular motor system of infants, but few findings have been reported. This study hypothesizes that quantitative analysis of "at-risk" infants' eye movement systems can detect abnormalities that precede and predict the onset of strabismus, or cross-eye.

We will collect data on the eye movements of a group of infants born between 36 and 44 weeks after conception. These infants will be enrolled between 4 and 24 weeks after birth and followed at 4-week (+/- 5 days) intervals until 28 weeks of age and then once a year until 3 years after birth. The infants will undergo a complete ophthalmic evaluation at each visit after they enroll. At all visits up to 28 weeks of age, they will also undergo analysis of eye movements. We also will monitor the development of ocular alignment and check to detect other visual system abnormalities. The study will provide basic knowledge about the cause of both normal and abnormal alignment of both eyes in infants in the first 28 weeks of life.

Conditions

  • Healthy
  • Strabismus

Sponsors & Collaborators

  • National Eye Institute (NEI)

    lead NIH

Eligibility

Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
1999-10-31
Completion
2002-10-31

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 NCT00001143 on ClinicalTrials.gov