Retained silicone dome from open fit hearing aid: an unwanted and under recognized aural foreign body.

In recent years, the open fit hearing aids have been used widely as they are less prominent and more acceptable to patients. The ear mould is replaced with a dome, which manufacturers claim can reduce the occlusive effect compared to a regular ear mould. The receiver-in-the-canal (RIC) aid, which is a type of open fit aid, also gives a more natural sound quality with better signal to noise ratio as the receiver sits close to the eardrum.