text: http://www.jonathanborden-md.com/OpticTumors.html\n\nlink to a medical web site explaining what you asked\n\nthere is a list of types of tumors and surguries\n\nOrbital tumors, Tumors of the Optic canal, Superior orbital fissure and sphenoid wing, Tuberculum sella meningiomas, Pituitary Macroadenomas, Craniopharyngiomas...etc \n\nthis web site pretty much explains it all...i found it pretty interesting anyway