Pedigree of two families with hyperferritinemia and congenital cataract. Circles denote female family members; squares, male family members; and diamonds, additional members of either sex (the number of additional members is shown in the diamonds); arrows indicate the two probands and symbols with diagonal lines indicate deceased members. Within each symbol, the left side indicates the lens status and the right side, the serum ferritin level. Blank symbols indicate normal lens and normal serum ferritin levels, respectively. C denotes congenital cataract; F, hyperferritinemia; and question marks indicate unknown serum ferritin levels. No member indicated within diamonds had evidence of cataract and/or hyperferritinemia.