Takai et al. showed a positive correlation of TGF-beta 1, IL-8 and SAA with IOP in open angle and exfoliation glaucoma [27], whereas our results display a positive correlation for CXCL13, CCL8 and CCL3 in the PEXG-group, but no other correlation in any of the four groups. The gene discussed is CXCL8; the disease is exfoliation syndrome.