Abstract
We measured distortion product otoacoustic emissions (DPOAEs) in cases with functional hearing loss and got good responses in all cases. In addition, we also measured the DPOAEs in the cases with normal hearing and sensorineural hearing loss and analyzed them. The higher the average air conduction threshold of the 5 frequencies became, the lower the DP level became. DPOAEs were thus found to be useful for evaluating the cochlear function.
