Diagnostic Value of Bekesy Comfortable Loudness Tracings

An Orbital Roof Fracture Causing Diplopia

“…This "double plateau" function has been described previously in patients with sloping high-frequency sensorineural loss. [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] The PBT based on the 50% intelligi¬ bility level is 55 dB. This speech threshold agrees well with pure-tone sensitivity levels at 2,000 Hz and above.…”