Figure 1. Pedigrees of two Chinese families with juvenile-onset primary open-angle glaucoma and genotype/haplotype data of eight short tandem repeat markers from the2p12-p16 region. The square symbol indicates male; the circle symbol denotes female; the filled symbol represents the affected family member with POAG; and the slashed symbol denotes that the family member is deceased. A phase-known disease haplotype in each family is indicated by a box.