Fig. 7 Angle pigment. Excessive angle pigment always demands an explanation. It is common to see some pigment dusting the inferior portion of the angle, especially in individuals over age 50. Figure 3A reveals moderate trabecular pigment. Excessive trabecular pigment at the 12 o'clock position occurs in only 2.5% of individuals and is usually pathologic. This goniophotograph shows excessive trabecular pigment representing pigmentary dispersion syndrome.