The expression of tTG was present in PVR epiretinal membranes (80%). Positive staining was most prominent in ECM,fibroblast-like cells and macrophages. There was no significant difference in positive rates between C and D stage membranes (P >0.05).

• 在PVR视网膜前膜中tTG呈阳性表达(81%25)；C级和D级膜表达阳性率无差异(C级88%25；D级77%25；P>0.；05)。