Figure 4. Transmission electronic microscope images of the eyes treated with plasmin and/or SF₆. Dense collagen fibrils were still attached to the internal limiting membrane (ILM) in the balanced salt solution (BSS)-treated eyes (control eyes). In contrast, eyes treated with plasmin or SF₆ showed a cleaner ILM with limited adhesion of collagen fibrils. Eyes treated with plasmin and SF₆ were free from adhesion of collagen fibrils. The scale bar represents 1 μm.