Figure 4From: Over-expression of human cystatin C in pterygium versushealthy conjunctiva (A) Superficial epithelial cells in the healthy conjunctiva were positive for the presence of HCC (arrow). (B) Most of the epithelial tissue was positive for HCC in primary pterygium (key). (C) Nearly all the epithelial tissue was positive for HCC in recurrent pterygium (key; 400× Magnification).Back to article page