Fiber Optic TechnologyOptical FibersOptic NerveStructure CollapseRefractometryOptics and PhotonicsEquipment Failure AnalysisEquipment DesignOptic DiskTransducersOptic NeuritisNerve FibersBiosensing TechniquesOptic ChiasmOptic AtrophySpectrum AnalysisTechnologyReproducibility of ResultsOptic Nerve InjuriesSensitivity and Specificity