"Twenty five years of ringing the bell in my right hand has had an effect on my hearing, I guess it's an occupational hazard," The Telegraph quoted Jackson, as saying.
Jackson revealed that his hearing power in the right ear began depreciating 10 years ago, as he used to ring the bell in his right hand.
"My hearing started to deteriorate in my right ear about 10 years ago because I ring the bell in my right hand," he said.
"It was very gradual so at first I did not notice anything different but then I started to struggle to pick up people's words and the television always sounded muffled," he added.
Jackson, who retired from the job three years ago in Christchurch, Dorset, was forced to join his job again after his successor expired.
Jackson was more than content to get two hearing aids fitted in order to ease hearing and continue his job as a town crier.
"I did not realize that I was missing out on many things, like the sound of birdsong," he said.