ISHIHARA Test Chart Books for Color Deficiency (24 Plate) SC all in one

all in one

5 Volt Halogen: Otoscope with removable head for Throat Illuminator

Unlike most AED units

whichever fits your needs best

ISHIHARA Test Chart Books for Color Deficiency (24 Plate) SC all in one(24 Plate) 17 numbers and 7 trails Accepted by leading authorities as a simple and accurate method for discovering congenital color blindness of two types: total color blindness and red green blindness, each in two forms, complete and incomplete. Includes four special plates for tests to determine the kind and degree of defect in color vision. Makes use of the peculiarity that in red green blindness, blue and yellow appear remarkably bright compared