Eye pattern
| Code | Term | Description |
|---|---|---|
| 0 | Absent, Group A' | If the eye pattern is recorded as 0 or 1 (Group A), then eye colour (4.3.9) is always likewise recorded as 0 or 1 (Group W) |
| 1 | Very small, Group A | Group A |
| 2 | Kabba group | Eye fills the narrow groove all around the hilum, and the body has some form of speckling. A blue halo is also found around the hilum, Group K |
| 3 | Narrow eye | Hilum Ring. Eye fills the narrow groove around the hilum and spills out of this groove in front of the hilum for a short distance and has an indistinct front margin, Group N |
| 4 | Small eye | eye has a distinct margin, but is smaller than Holstein group, Group E |
| 5 | Holstein group | eye encircles the back of the hilum in a narrow ring, widens at the sides, and then extends margin of the eye is very distinct, Group H |
| 6 | Watson group | eye encircles the back of the hilum as a narrow ring, widens at the sides and spills over the non –micropylar end of the seed with an indistinct margin. The extra width at the sides of the hilum distinguishes this group from 3, narrow eye, Group W |
| 7 | Self coloured | eye covers entire seed, Group S |
| 8 | Other | Other |