Colour vision test
The Panel 16 Color Vision Test is similar to the well known Farnsworth Panel D-15 Test. In the Panel 16 test the colour surfaces are larger than in the Panel 15 test and thus measure colour perception in a larger area of the visual field. Since disorders affect colour vision in an irregular way, it is important to measure colour perception using test stimuli with different sizes. The large colour surface can be reduced to the standard size stimulus by using the gray circles included with the test.
Since in the Panel 16 test the coloured area is large, the test interests children more than the small caps of Panel D-15. The colour surface is covered with a thin protective coating and is therefore less likely to be destroyed if the child touches it.
When testing very young children two sets of the colour caps are used so that simple matching is possible:
For assessment techniques see Testing Procedures, Older Children and Adults.