This document provides common medical abbreviations for various eye, ear, nose, and throat terms. It defines abbreviations such as PE TUBE for Pressure Equalizing Tube, EENT for Eye, Ear, Nose and Throat, BC for Bone Conduction, OM for Otitis Media, EM for Emmetropia, EX for Exotropia, OS for Left Eye, EOM for Extraocular Movement, VA for Visual Acuity, and AU for Both Ears.