Figure 3. uPA mRNA in normal conjunctiva and pterygium tissue at various stages measured by quantitative real-time PCR. Comparison of uPA mRNA levels between normal conjunctiva and pterygium tissues at various stages. Data are given as mean±SD (n=5). *Significant difference (p<0.05) compared with normal. #Significant difference (p<0.05) compared with stage I. &Significant difference (p<0.05) compared with stage II.