| Sometimes tritanopia occurs due to disease, because the short wavelength cone is more fragile than the other cone types. |
| With tritanopia, the person is deficient in blue and yellow perception, although he is still sensitive to red and green. |
| The test makes it possible to diagnose almost all the anomalies of colour vision like deuteronopia, protonopia, tritanopia, etc. |
| Protanopia, deuteranopia and tritanopia are all types of dichromatism. |
