alt Ocular coherence tomogram (OCT) of a person with<unk>  One diagnostic method for the confirmation of<unk>  is Fluorescein angiography, it is used to examine the retinal artery filling time after the fluorescein dye is injected into the peripheral venous system. In an eye with<unk>  some branches of the retinal artery may not fill or the time it takes for the branches of the retinal artery to fill will be increased, which is visualized by the leading edge of the fluorescein moving slower than normal through the retinal artery branches to the edges of the retina. Fluorescein angiography can also be used to determine the extent of the<unk>  as well as classify it into one of four types non-arteritic<unk> , non-arteritic<unk>  with cilioretinal artery sparing, transient non-arteritic<unk>  and arteritic<unk> . Optical coherence tomography (OCT) may also be used to confirm the diagnosis of<unk> .
Central retinal artery occlusion
Branch retinal artery occlusion
Branch retinal vein occlusion
Retinal vasculitis
Central retinal vein occlusion
Arteritic anterior ischemic optic neuropathy
Posterior ischemic optic neuropathy
Ischemic optic neuropathy