Fig. 2.

Morphology of iba-1 immunoreactive microglia in flat-mounted retinas at four weeks after the first laser photocoagulation. Confocal images by stacking all Z layers in the inner retina (from the nerve fiber layer to the inner nuclear layer) showed that morphology of the resting microglia in the PBS-fed group displayed small perikarya and two or more thin branching processes, which are longer than the soma diameter (a). In LBP-fed rats, the microglia displayed increased iba-1 immunoreactivity in both the soma and processes. There was enlargement of the soma and regional thickening of the processes (b). Scale bar is 20 μm