Chapter 13 Medical  Terminology - Abbreviations Special Senses: The Eye and Ear
Pressure Equalizing Tube PE Tube <ul><li>Small Tube Surgically Placed in Eardrum to Assist Drainage of Trapped Fluid </li>...
Eye, Ear, Nose, Throat EENT
Bone Conduction BC <ul><li>Conduction of Sound to Inner Ear Thru Bones of the Skull </li></ul><ul><li>Some Hearing Aids Em...
Both Ears AU <ul><li>Binaural Hearing Allows You To Make Fine Judgments About Sound and To Listen Selectively To One of Se...
Otitis Media OM <ul><li>Inflation of the Middle Ear </li></ul><ul><li>Often Begins with Infections that Cause Sore Throats...
Emmetropia EM <ul><li>State of Normal Vision </li></ul><ul><li>The Eye Is Like a Camera That Has Two Lenses: One Is the Cr...
Exotropia XT <ul><li>Outward Turning of the Eye - Also Called Wall-Eyed </li></ul><ul><li>An Example of Strabismus (Muscle...
Left Eye OS <ul><li>Abbreviations for Right Eye (OD) and Left Eye (OS) Easier to Remember When Origins Become Known </li><...
ExtraOcular Movement EOM <ul><li>Eye Movements Made Possible by Eye Muscles That Connect the Actual Eyeball to the Skull <...
A Given ExtraOcular Muscle Moves the Pupil, at the Front of the Eye In a Specific Direction of Directions <ul><li>Medial R...
ExtraOcular Muscle Movements <ul><li>Inferior Rectus (IR)  </li></ul><ul><ul><li>Primarily Moves Eye Downward </li></ul></...
Visual Acuity (VA) Test <ul><li>Diagnostic Procedure </li></ul><ul><li>Measures Sharpness of Vision </li></ul><ul><li>Usua...
References and Images Gathered From <ul><li>Nim.nih.gov </li></ul><ul><li>Laserlububbock.com </li></ul><ul><li>Wellsphere....
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M T Sp Senses Pr

  1. 1. Chapter 13 Medical Terminology - Abbreviations Special Senses: The Eye and Ear
  2. 2. Pressure Equalizing Tube PE Tube <ul><li>Small Tube Surgically Placed in Eardrum to Assist Drainage of Trapped Fluid </li></ul><ul><li>Equalizes Pressure Between Middle Ear Cavity and Atmosphere </li></ul>
  3. 3. Eye, Ear, Nose, Throat EENT
  4. 4. Bone Conduction BC <ul><li>Conduction of Sound to Inner Ear Thru Bones of the Skull </li></ul><ul><li>Some Hearing Aids Employ Bone Conduction - Achieving an Effect Equivalent to Hearing Directly by Means of the Ears </li></ul><ul><li>Headset Is Ergonomically Positioned on the Temple and cCheek and the Electromechanical Transducer, which Converts Electric Signals into Mechanical Vibrations, Sends Sound to the Iinternal Ear through the Cranial Bones. </li></ul>
  5. 5. Both Ears AU <ul><li>Binaural Hearing Allows You To Make Fine Judgments About Sound and To Listen Selectively To One of Several Sounds </li></ul>
  6. 6. Otitis Media OM <ul><li>Inflation of the Middle Ear </li></ul><ul><li>Often Begins with Infections that Cause Sore Throats, Colds or Other Respiratory Problems, and Spreads to the Middle Ear </li></ul><ul><li>Most Common Diagnosis in Sick Children in The United States - Estimated 75% of Children Experience At Least One Episode Before the Age of 3 </li></ul>
  7. 7. Emmetropia EM <ul><li>State of Normal Vision </li></ul><ul><li>The Eye Is Like a Camera That Has Two Lenses: One Is the Crystalline Lens Inside the Eye. The Other Is the Cornea, which is Positioned in the Eye Like a Watch Crystal But Actually Provides 2/3 of the Eye's Focusing Power. When Light Rays Enter the Eye are Perfectly Focused on the Retina, the Eye Is Neither Nearsighted nor Farsighted - It is in “Emmetropia” </li></ul>
  8. 8. Exotropia XT <ul><li>Outward Turning of the Eye - Also Called Wall-Eyed </li></ul><ul><li>An Example of Strabismus (Muscle Weakness of the Eye) </li></ul><ul><li>Causes Are Not Fully Understood </li></ul><ul><li>More Common with Children with Disorders that Affect the Brain </li></ul>
  9. 9. Left Eye OS <ul><li>Abbreviations for Right Eye (OD) and Left Eye (OS) Easier to Remember When Origins Become Known </li></ul><ul><li>OD: Stands for oculus (eye) dexter (right) </li></ul><ul><li>OS: Stands for oculus (eye) sinister (left) </li></ul><ul><li>One Time in History, It Was Considered to be Sinister if One Looked at Another From Only the Left Side --- Hence oculus sinister means Left Eye </li></ul>
  10. 10. ExtraOcular Movement EOM <ul><li>Eye Movements Made Possible by Eye Muscles That Connect the Actual Eyeball to the Skull </li></ul><ul><li>Six Muscles (Four Rectus and Two Obliques) Allow for Change in the Direction of Each Eye’s Sightline </li></ul><ul><li>Also Provide Support for the Eyeball in the Eye Socket </li></ul>
  11. 11. A Given ExtraOcular Muscle Moves the Pupil, at the Front of the Eye In a Specific Direction of Directions <ul><li>Medial Rectus (MR) - Moves Eye Inward, Toward the Nose </li></ul><ul><li>Lateral Rectus (LR) - Moves the Eye Outward, Away from the Nose </li></ul><ul><li>Superior Rectus (SR) - Responsible for Three Movements </li></ul><ul><ul><li>Primarily Moves Eye Upward </li></ul></ul><ul><ul><li>Secondarily Rotates Top of the Eye Toward the Nose </li></ul></ul><ul><ul><li>Thirdly Moves Eye Upward </li></ul></ul>
  12. 12. ExtraOcular Muscle Movements <ul><li>Inferior Rectus (IR) </li></ul><ul><ul><li>Primarily Moves Eye Downward </li></ul></ul><ul><ul><li>Secondarily Rotates Top of Eye Away from the Nose </li></ul></ul><ul><ul><li>Thirdly Moves Eye Inward </li></ul></ul><ul><li>Superior Oblique (SO) </li></ul><ul><ul><li>Primarily Rotates Top of Eye Toward the Nose </li></ul></ul><ul><ul><li>Secondarily Moves Eye Downward </li></ul></ul><ul><ul><li>Thirdly Moves Eye Outward </li></ul></ul><ul><li>Inferior Oblique (IO) </li></ul><ul><ul><li>Primarily Rotates Top of Eye Away from the Nose </li></ul></ul><ul><ul><li>Secondarily Moves Eye Upward </li></ul></ul><ul><ul><li>Thirdly Moves the Eye Outward </li></ul></ul>
  13. 13. Visual Acuity (VA) Test <ul><li>Diagnostic Procedure </li></ul><ul><li>Measures Sharpness of Vision </li></ul><ul><li>Usually Uses a Snellen Chart In Which Letters from a Distance of 20 Feet Are Identified </li></ul>
  14. 14. References and Images Gathered From <ul><li>Nim.nih.gov </li></ul><ul><li>Laserlububbock.com </li></ul><ul><li>Wellsphere.com </li></ul><ul><li>Wikipedia.org </li></ul>

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