Pilestone are the usa’s official provider of high quality and affordable color blind glasses. In case of tritan type color blindness, you probably won't notice (too much) difference between the two spectrums, but people with normal color vision will see the difference. How Is Your Colour Vision Can You See What Is Written On The Image If Not You May Have Some Type Of Colourblindness Click On The Link To F Tokek Warna About one out of 20 women and one out of 12 men are color blind. Reverse color blind test images . Regular color blindness test no.2. Most of you might think these people only see everything in black and white. In case of tritan type color blindness, you probably won't notice (too much) difference between the two spectrums, but people with normal color vision will see the difference. It was named after its designer, shinobu ishihara, a professor at the university of tokyo, who first published his tests in 1917. Color blind test or the ishihara test co...