40
Participants
Start Date
January 31, 2016
Primary Completion Date
December 31, 2019
Study Completion Date
December 31, 2019
Precision tinted lenses
Tinted lens for patient with reading difficulty or visual stress
Non-beneficial tinted lenses
Tinted lenses that are unlikely to help reading difficulty or visual stress
City University London, London
City, University of London
OTHER