ICAM1 and age-related macular degeneration: ICAM-1 (Intercellular Adhesion Molecule-1) protein was significantly increased by 83.6 % in AMD plasma compared to normal plasma: P = 0.0177; Normal plasma = 1 ± 0.2365 a.u.; AMD plasma = 1.836 ± 0.1512 a.u. (Figure 2I).