An ounce of prevention is better than a pound of cure. This principle also applies to anyone with a hearing loss condition. The earlier the illness is detected, the better its prognosis is. However, for those who already are afflicted with the illness, hearing tests are done to see whether hearing has improved or not and whether treatments have been effective. _Website not available. Sign in: https://www.twine.net/signup_…An ounce of prevention is better than a pound of cure. This principle also applies to anyone with a hearing loss condition. The earlier the illness is detected, the better its prognosis is. However, for those who already are afflicted with the illness, hearing tests are done to see whether hearing has improved or not and whether treatments have been effective. _Website not available. Sign in: https://www.twine.net/signup_WWWW…