<unk>  is diagnosed via dilated eye examination. For some patients the vitreous gel is extremely clear and so it can be hard to see the<unk> . In these cases, additional imaging such as Optical Coherence Tomography (OCT) or ocular ultrasound are used.
Posterior vitreous detachment
Ischemic optic neuropathy
Vitreous hemorrhage
Posterior ischemic optic neuropathy
Anterior ischemic optic neuropathy
Arteritic anterior ischemic optic neuropathy
Acute retinal necrosis
Optic neuritis