SENJINGHUA Color Blind Test Chart, 38 Plate Test Chart Books for Color Deficiency, Distinguish Between Colorblind Patients, Category Design and Hidden Numbers, for Vision Care Center Hospital

SENJINGHUA

Which is a simple and accurate method for discovering congenital color blindness and red-green blindness, each in two forms, complete and incomplete. Used to distinguish between red and green color blind people. The disappearing design is used on both sides of the sign, one side for decolorized defects and the other side for primary color defects. The Ishihara color spot test is that the patient must recognize numbers or patterns formed in a matrix of small colored dots of different colors and intensities (pseudo-isochromatic plates). Only people with good color vision can see the logo. If you are colorblind, you cannot see anything. With instructions for use Colorblind testing book suitable for enrollment, driving school, orientation health check and also perfect for science teachers showing students examples of color blindness.