<h4>Purpose</h4>MYO7A is involved in several forms of deafness in humans and mice, and in this study we aimed to investigate if the hearing loss could be reversed after its onset.<h4>Methods</h4>A knockdown allele of Myo7a in the mouse, Myo7a<sup>tm1a</sup>, was characterised by recording ABR thresholds at ages from 4 weeks to 6 months old and measuring the amount of hair cell degeneration at 4 weeks old. Here, MYO7A is linked to deafness.