NCT00787579

Assessment of Bifocal and Prismatic Bifocal Spectacles for Myopia Control in Children

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 135 (actual)
• Sponsor: Essilor International · Industry
• Sex: All
• Age: 8 Years – 13 Years
• Healthy volunteers: Accepted

Summary

1. To determine if the effect of near-addition lenses (bifocals) is more prominent for children with high myopia progression. 2. To study how different subject characteristics such as age, gender, baseline degree of myopia, baseline near phoria and baseline lag of accommodation affect the efficacy of bifocal lens wear in myopic children. 3. To investigate the effect of incorporating near base-in prisms along with the near-addition lenses (prismatic bifocals) on myopia progression in myopic children.

Conditions

• Myopia

Interventions

Type	Name	Description
DEVICE	Bifocal spectacles	+1.50D bifocal spectacles
DEVICE	Prismatic bifocal spectacles	+1.50D bifocal spectacles combined with 3Δ base-in prisms

Timeline

• Start date: 2003-04-01
• Primary completion: 2008-04-01
• First posted: 2008-11-07
• Last updated: 2008-11-07

Locations

1 site across 1 country: Canada