Colour sense test

There are two types of colour vision deficiency: congenital and acquired. Those affected often notice such a colour vision disorder themselves or a colour vision test or colour sense test should be carried out before starting certain professional training (e.g. pilot or police officer). The most common colour vision disorder is red-green deficiency.

The colour sense test at BeyondEye

In our practice, we carry out the Ishihara test to test for red-green deficiency or red-blindness. This consists of several colour charts with different colour circles. Numbers or patterns are shown. There are colour charts that people with red-green deficiency cannot recognise. Conversely, there are also test charts that only people with red-green deficiency can recognise. If the exact extent of a colour vision disorder is to be determined for expert opinions, a further examination using an anomaloscope must be carried out during the colour vision test.

Good to Know

What is an anomaloscope?
The anomaloscope is a device used in ophthalmology to determine the extent of colour vision defects. It is also used for colour vision testing. During the examination, we show you a colour on the device and ask you to mix the colour according to the reference shown on the device. An anomaly quotient is calculated from the ratio between the colour you have mixed and the reference colour. This must often be specified for expert opinions.