Description
The Kay Picture Test Single Crowded Book with comprehensive distance LogMAR sizing at three metres from 1.00 (6/60) to -0.10 (6/5). 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.
Our new, 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. For a summary of the research please click here. if you would like to read the published research behind the redevelopment of our optotypes please read the article on BIOJ.