Status Unknown
A Trial of Bifocals in Myopic Children With Esophoria
Led by National Eye Institute (NEI) · Updated on 2005-06-24
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Participants Needed
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Research Sites
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Total Duration
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AI-Summary
What this Trial Is About
To test the hypothesis that correction with bifocal spectacle lenses rather than single-vision lenses will slow the progression of myopia in children with near-point esophoria. The primary outcome variable is cycloplegic refraction as measured with an automated refractor. Axial length is measured with ultrasound in order to test the corollary hypothesis that use of bifocals will slow ocular growth in these myopic children. We will also examine the amount of close work performed by subjects and the degree of parental myopia as factors that may influence myopia progression.
CONDITIONS
Brief Title
A Trial of Bifocals in Myopic Children With Esophoria
Who Can Participate
Eligibility Criteria
Boys must have been between 6 and 12 years of age; girls between 6 and 11 years of age. All children must have had at least 0.5 diopters of myopia in both eyes, near-point esophoria, at least 20/25 acuity in each eye, and 40 seconds of stereopsis and must have been free of ocular disease or systemic disease that may have altered refraction. All subjects were willing to wear bifocal spectacle lenses for 30 months.
Trial Site Locations
Site Locations not provided
Location information for this trial is currently unavailable.
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