135
Participants
Start Date
April 30, 2003
Primary Completion Date
April 30, 2008
Bifocal spectacles
+1.50D bifocal spectacles
Prismatic bifocal spectacles
+1.50D bifocal spectacles combined with 3Δ base-in prisms
Dr. Desmond Cheng & Associates, Mississauga
Lead Sponsor
Queensland University of Technology
OTHER
Essilor International
INDUSTRY