Kay Single Crowded Screening Book
The Kay Picture Test Single Crowded Book with comprehensive distance LogMAR sizing at three metres from 1.00 to -0.10. It also includes a near test at 33cm and a matching card. The test is suitable for naming and matching with children aged 18 months+.
Instructions with diagrams and a scoring table are printed inside the book.
The Kay Picture Test Single Crowded Book is packaged in a frosted PVC wallet with flap closure for safe storage in between uses.
Our fully-researched picture optotypes provide a reliable visual acuity measurement comparable with ETDRS. The six new picture optotypes are presented in a crowding box with a choice of four different optotypes at each acuity level. Read a summary of the research here and visit BIOJ for the published research behind the redevelopment of our optotypes.
