Retinal Artery OcclusionRetinal ArterySusac SyndromeFluorescein AngiographyFundus OculiGlaucoma, NeovascularAmaurosis FugaxBlindnessSneddon SyndromeRetinal VeinOphthalmic ArteryRetinal DiseasesOptic NerveArterial Occlusive DiseasesVisual AcuityParacentesisOptic Neuropathy, IschemicOphthalmodynamometryOptic DiskCarotid Artery DiseasesArteriesCiliary ArteriesVision DisordersInfarction, Middle Cerebral ArteryFibrinolytic AgentsRetina