Hey, sorry about your problem. What percentage have you lost and in which frequencies? That is what will determine whether you pass the medical or not.
As far as I know the UK reg of no more than 20dB is the European standard.
You ask if there are any devices (like glasses for eyes), I assume you mean hearing aids. If your hearing loss is noise-induced, it cannot be corrected and a hearing aid will not help much. a hearing aid will only possibly help you reduce tinnitus (a ringing or wind-like noise in the ears)if you are suffering from that as well.
I hope that helps.
