Figure 2

Histopathology of Intacs (intrastromal corneal rings). A, Shows a space containing residue plastic (Intacs) material which is surrounded by a dense acellular and/or hypocellular collagen scar. The channel haze is observed at the inner edge of the Intacs. B, The severely attenuated corneal endothelial cells. C, Shows the acidophilic densification and mild inflammatory cell infiltration at the inner edge of the Intacs. D, Immunochemistry of CD68 shows macrophage (CD68+) infiltration at the inner edge of Intacs. (A-C, H+E; original magnification, A × 100, B and C × 200, D × 100).