Table 1

Subject details*

Subjects50
Male/female15/35 (30/70%)
Age, years†27.6±5.5 (21–51)
 <3037 (74%)
 ≥3013 (26%)
Iris colour‡
 Blue/grey/green29 (58%)
 Hazel/brown/black21 (42%)
  • *Number (%).

  • †Mean±SD (range).

  • ‡Adapted from Grieve and Morant.15