Figure 4: Formalin fixed paraffin embedded sections of mouse eyes 3 weeks post-injection stained with Haematoxylin-eosin. (A,C) BSS-injected control eye. (B,D) Subretinal polymer injected eye. Physical damage to the outer retina marks the needle puncture site (arrow) with clumps of rounded displaced RPE/ phagocytic cells in the subretinal space. Retinal layers are normal throughout the entire globe.