Hair Cell Loss: Cause or Consequence of Hearing Loss?

This document reviews the relationship between hair cell loss and hearing loss, suggesting that hair cell loss is often a consequence rather than a cause of hearing loss. It highlights that synapses and stereocilia are typically lost before hair cells, leading to irreversible hearing loss. The review emphasizes the importance of early intervention and understanding the sequence of events in hearing loss, noting that hearing loss often precedes hair cell loss, with hair cells showing morphological and functional defects. The literature suggests that hair cell loss is frequently secondary to the initial loss of hearing function.