Diagnosis is based on symptoms and a hearing test that documents a loss in the low and mid frequencies, usually only in one ear. For patients with mild or atypical<unk> , the hearing thresholds may be normal, but they may experience a subjective, unilateral distortion of sounds in lower frequencies, such as diplacusis or that voices are sounding "robotic". Patients may also mention a feeling of pressure or fullness in the ear. To objectively test for the presence of<unk> , an electrocochleography (or ECOG) procedure can be done to detect elevated inner ear pressure. It is also possible to reveal the presence of<unk>  with an MRI. If vertigo is experienced, the diagnosis progresses to Meniere's disease. This occurs if the fluid increase leads to a leak or rupture of the membranes in the inner ear, causing a mixture of perilymph and endolymph.
Cochlear hydrops
Vitreous bulge
Orbital emphysema
Corneal hydrops
Vitreous hemorrhage
Pseudo-goitre
Noise-induced hearing loss
Tympanosclerosis