Figure 3. Topography of immunohistochemical labeling of ICAM-1 in the retina

Immunohistochemical labeling of the external limiting membrane (ELM; purple reaction product) in the macular (A), equatorial (B), and far peripheral (C) regions of the neural retina. Note the graded labeling from macula to periphery. This pattern was observed in 19 out of 20 examined. The inner nuclear layer (INL), outer nuclear layer (ONL), and outer segments (OS) are also identified. Scale bar represents 50 μm.