Figure 3.

Comparison between immunohistochemical scores in subjects with proliferative sickle cell retinopathy (cases 1, 2, 4) and the control subject (case 6). Two areas in the retina of case 4 are represented (4A and 4B) and scores for sea fan formations and two areas within retina (perfused central retina and border of perfused and non-perfused peripheral retina) are represented for the sickle cell subjects. (A) Mean (SEM) score for VCAM-1 immunoreactivity. (B) Mean immunohistochemical scores for ICAM-1. (C) Mean immunohistochemical scores for P-selectin.