HOTV Single symbol eye test book with Interaction Bars

11 page spiral-bound book.

Eye test book measures 7.5 X 7.5 cm (3X3 in).

Used in the PEDIG study.

This is a great combination of several pediatric testing tools. This flip book uses HOTV optotypes, which are great for testing children ages 3-5 years. They are easily recognizable and teachable. The flip book also includes a response key for easy recordings and provides the ability to test preliterate children. Also, this vision chart flip book features interaction bars that provide adequate contoured interaction. This interaction is an essential tool in the early detection of Amblyopia. The combination of these features helps to make this PEDIG study test accurate, reliable and practical for pediatric vision testing.