Spontaneous improvement is common
Better prognosis if high- or low-frequency<unk>  loss pattern rather than flat across all frequencies
Around 2/3 of patients will regain<unk>  in the affected ear
Worse prognosis in older patients
Worse in patients with vertigo
Sudden sensorineural hearing loss
Acute stroke, usually AICA occlusion
Bilateral red eyes
Multiple Sclerosis
Acute vision loss 
Meningitis
Unilateral red eye
Vestibular schwannomas