When your brain is deprived of sound stimulation, it loses the ability to process sounds. The longer you wait the more sounds disappear and it takes more time to re-adapt.
You get your vision tested regularly but what about your hearing? It is recommended to get a routine screening every 10 years until the age of 50 and at least every 3 years after turning 50. A hearing test can tell you if you have a hearing loss and a hearing care professional can advise you on what you can do about it.