A FITTING PRESCRIPTION FOR THE INDIVIDUAL - interview with Dr. Justin Zakis

Just as he was travelling to speak at the Specsavers Professional Advancement Conference (PAC) in Birmingham, NAL Principal Research Engineer Justin Zakis told Audiology News UK about the thinking behind his centre's breakthrough fitting formula, NAL-NL3, which is designed to take over from and improve upon the long-standing prescription NL2. 

Peter WIX, Published on 29 September 2025

A FITTING PRESCRIPTION FOR THE INDIVIDUAL – interview with Dr. Justin Zakis
The most used fitting prescription around the world has undergone a radical update down under from the NL2 formula released 15 years ago by the National Acoustic Laboratories in Sydney, Australia. NAL-NL3 will open the door to people who don't even have much hearing loss but still need hearing help. [caption id="attachment_141209" align="alignleft" width="300"] The old trusty NL2, a more generic prescription, is giving way to a precision-oriented formula.© NAL[/caption] The one-size-fits-most NL2 prescription has served a more generic purpose for long enough. A new opportunity is here for NAL-NL3 to respond to the growing healthcare trend for patient-centred health by providing a tool to audiologists with which they can respond to patients with precision, treating each one individually. The NL3 prescription...

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