1. Sean Hannon Chapter 13Special Senses

2. Abbreviations Pressure equalizing tube- PE Tube Eye, ear, nose, and throat- EENT Bone conduction- BC Both ears- AU Otitis Media- OM Emmetropia-EM Exotropia- XT Left eye- OS Extraocular movement- EOM Visual Acuity-VA

3. PE Tube Small tube surgically placed in a child’s eardrum to assist in drainage of trapped fluid and to equalize pressure between the middle ear cavity and the atmosphere.

4. EENT Eye, Ear, Nose, and Throat

5. BC Bone conduction is the conduction of sound to the inner ear through the bones of the skull.

6. AU Both ears

7. OM Otitis media is commonly referred to as middle ear infection.

8. EM Emmetropia describes the state of vision where an object at infinity is in sharp focus with the eye lens in a neutral or relaxed state.

9. XT Exotropia is a form of strabismus where the eyes are deviated outward

10. OS Left eye

11. EOM Extraocularmovement are eye movements controlled by muscles innervated by cranial nerves III, IV and VI.

12. VA Visual acuity is acuteness or clearness of vision, especially form vision, which is dependent on the sharpness of the retinal focus within the eye and the sensitivity of the interpretative faculty of the brain.