ISHIHARA Book Best Quality Color Vision Testing Book in Nepal
The test consists of a number of colored plates, called Ishihara plates, each of which contains a circle of dots appearing randomized in color and size. Within the pattern are dots that form a number or shape clearly visible to those with normal color vision, and invisible, or difficult to see, to those with a red-green color vision defect, or the other way around. The full test consists of 38 plates, but the existence of a deficiency is usually clear after a few plates.
Individuals with color vision defects should see a different figure from individuals with normal color vision.
Makes use of the peculiarity that in red-green blindness, blue and yellow appear remarkably bright compared with red and green
Diagnostic plates: intended to determine the type of color vision defect
Ishihara Test Chart Books for Color Deficiency 38 Plates with user manual
ishihara color blind test book Price in Nepal.
There are no reviews yet.