<prompt> Hearing loss of 65dB, what is the grade of deafness?MildModerateSevereModerately severe  <response>: WHO classification of the degree of hearing lossThe degree of impairment Hearing threshold in the better earNot significant 0 - 25 dBMild deafness26 - 40 dBModerate deafness41 - 55 dBModerately severe deafness56 - 70 dBSevere deafness 71 - 90 dBProfound deafnessAbove 91 dB Ref: PL Dhingra, Diseases of Ear, Nose Throat, 7th edition, pg no. 40 