8Habal MB,Maniscalco JE,Lineaweaver WC.Microsurgical anatomy of the optic canal: anatomical relations and exposure of the optic nerve.Surgical Forum, 1976,27:542
9Chou P I.Sadun AA,Lee H,Vasculature and morphometry of the optic canal and intracanalicular optic nerve.J Neuro Ophthalmol, 1995,15:186
10Maniscalco JE,Habal MB.Microanatomy of optic canal.J Neurosurg, 1978, 48:402