PDIA5 and open-angle glaucoma: The frequency of the GTAAAGGG haplotype of PDIA5 was higher in POAG cases than controls in both the Salt Lake City and San Diego populations (odds ratio = 2.4 (95% CI 1.6–3.5) in the Salt Lake City population; odds ratio = 6.0 (95% CI 2.4–16.3) for the San Diego population; Tables S7 and S8), implicating it as a risk haplotype in both populations.