Figure 4. This scatter-plot demonstrates the correlation of the intensities of protein patterns between patients with primary open-angle glaucoma (POAG) and controls (CO). Spots above the line represent protein peaks with higher intensities in the POAG group (using SELDI-TOF analysis), dots below the line are peaks with lower intensity in the POAG group. This graph shows that up- and downregulated proteins were detected in aqueous humor of POAG patients.