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Classification of presbycusis
| Histopathology | Audiogram pattern | |
|---|---|---|
| Sensory presbycusis | Hair cell loss | Abrupt high frequency loss |
| Neural presbycusis | Spiral ganglion cell loss | Diminished word discrimination |
| Strial (metabolic) presbycusis | Stria vascularis atrophy | Flat type |
| Cochlear conductive presbycusis | No morphologic findings | Gradual descending pattern |
| Mixed presbycusis | Combinations of hair cell, ganglion cell, and stria vascularis loss | Flat and/or abrupt high frequency loss |