Figure 7From: Over-expression of human cystatin C in pterygium versushealthy conjunctiva Quantitation of HCC by ELISA in tears from active recurrent pterygium, active primary pterygium and healthy individuals. Absorbance values were increased in recurrent pterygia compared with primary pterygia. The amount of HCC in the tears of patients with active recurrent pterygium was 33% higher than that in healthy subjects.Back to article page