ON α-like ganglion cells are the most resistant type of the neurofilament-M immunoreactive cells after axotomy.

<p>(a) Control eye showing ON α-like ganglion cells (arrows) and other neurofilament-M positive ganglion cells in the peripheral area. (b, c) Examples of morphological changes (arrows in C) 21 days after axotomy in the peripheral area. (d) Example of an ON α-like ganglion cell 60 days after optic nerve transection in the peripheral area. Scale bar = 50<b> </b>μm.