I had an audiology test in a well known optical chain who also offer and encourage free hearing tests. I was surprised to be told I would benefit greatly from hearing aids. But the test was done in the corner of a busy shop with lots of background noise, of course the results were skewed.
I then had an audiology test with Kelly Hearing on Upper Leeson Street earlier this year, cost €100, no hard sell, some mild hearing loss but not enough to warrant hearing aids.