Optic Nerve NeoplasmsOptic NerveCranial Nerve NeoplasmsOptic Nerve InjuriesOptic DiskOptic Nerve DiseasesNeoplasms, Second PrimaryNeoplasmsOptic NeuritisOptic ChiasmOptic AtrophyRetinal Ganglion CellsNerve FibersNeoplasms, Multiple PrimarySciatic NervePancreatic NeoplasmsNerve CrushNeoplasms, Radiation-InducedNerve RegenerationOptic Nerve GliomaSolar ActivityPeripheral NervesOptic Neuropathy, IschemicAxonsSkin NeoplasmsRetinaImmunohistochemistryRetrospective StudiesGlaucomaIntraocular PressureNeoplasms, Cystic, Mucinous, and SerousParotid NeoplasmsKidney NeoplasmsGastrointestinal NeoplasmsTomography, X-Ray ComputedPapilledemaSalivary Gland NeoplasmsUrogenital NeoplasmsThyroid NeoplasmsFollow-Up StudiesLung NeoplasmsCarcinoma, Adenoid CysticSurvivorsCause of DeathOptic Lobe, NonmammalianHemangiosarcomaCarcinoma, MucoepidermoidIncidenceRetinoblastomaNose NeoplasmsSensitivity and SpecificityOptic Atrophies, HereditaryCarcinosarcomaOptic FlowRadiotherapy