314
Participants
Start Date
January 31, 2010
Primary Completion Date
April 30, 2014
Study Completion Date
April 30, 2014
Spaeth/Richman Contrast Sensitivity Test
internet based computerized contrast sensitivity test measuring central and peripheral vision using black and white stripes that decrease in contrast by fading to a white background.
Pelli-Robson Contrast Sensitivity Chart
wall chart contrast sensitivity test measuring central vision using black letters that decrease in contrast by fading to a white background.
Wills Eye Institute, Philadelphia
Collaborators (1)
Pfizer
INDUSTRY
Wills Eye
OTHER