(a) Before excision of optic pathway
(b) After excision of optic pathway
(c) After computer aided superimposition. Cropped part of image (a) can be seen superimposed as a translucent layer on image (b)
Figure 1: Computer screen capture image showing superimposition, in image processing software, of the two images of the cranial fossa obtained (a) before and (b) after removing the optic chiasma and (c) the superimposed image.