Anatomy of Eyelids
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Questions and Answers

What is the primary function of the eyelids?

  • To enhance the visual acuity of the eye
  • To change the color of the iris
  • To regulate the amount of oxygen in the eye
  • To offer protection from excessive light or injury (correct)
  • What is the purpose of the eyelids in terms of lubrication?

  • To distribute tears over the surface of the eyeball (correct)
  • To remove excess tears from the eye
  • To reduce the amount of lubrication in the eye
  • To produce tears in the eye
  • What are the two portions of the eyelid?

  • Medial and lateral
  • Anterior and posterior
  • Inner and outer
  • Upper and lower (correct)
  • What is the name of the opening between the two eyelids?

    <p>Palpebral aperture</p> Signup and view all the answers

    Where do the upper and lower eyelids meet?

    <p>At the medial and lateral canthi of the eye</p> Signup and view all the answers

    Which virus causes epidemic keratoconjunctivitis?

    <p>Adenoviruses</p> Signup and view all the answers

    What is the common treatment for Herpes simplex virus affecting the eye?

    <p>Topical antivirals</p> Signup and view all the answers

    What symptoms are commonly caused by Adenoviruses affecting the eye?

    <p>Itchy eyes and adhesion of the eyelids</p> Signup and view all the answers

    How is Herpes simplex virus that affects the genitals categorized?

    <p>Second type</p> Signup and view all the answers

    Which of the following is a symptom of the first type of Herpes simplex virus?

    <p>Cold sores on the face</p> Signup and view all the answers

    Study Notes

    Eyelid Function and Structure

    • Thin, mobile folds that cover the eyeball anteriorly
    • Provide protection from excessive light or injury
    • Maintain lubrication by distributing tears over the surface of the eyeball

    Eyelid Anatomy

    • Divided into upper and lower portions
    • Meet at the medial and lateral canthi of the eye
    • The opening between the two eyelids is called the palpebral aperture or opening

    Viruses and the Eye

    • Viruses typically affect the front part of the eye, while infection of the back part is rare.

    Types of Viruses

    • Adenoviruses:
      • Cause two types of inflammation: epidemic keratoconjunctivitis and pharyngeal conjunctivitis.
      • Symptoms include itchy eyes, feeling of a foreign body inside the eye, redness of the conjunctiva, and adhesion of the eyelids.
      • Treatment involves using povidone iodine at a concentration of 0.8%.

    Herpes Simplex Virus

    • Symptoms:
      • Cold sores and facial blisters that may appear after a cold or fever.
    • Types:
      • First type: Affects the face, lips, and eyes.
      • Second type: Genital, affecting the genitals.
    • Characteristics:
      • Typically affects only one eye.
    • Treatment:
      • Topical antivirals such as edoxuridine, vidarabine, and trifluoridine.

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    Description

    This quiz covers the structure and functions of eyelids, including their protective and lubricating roles. Topics include the anatomy of the upper and lower eyelids, palpebral aperture, and more.

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