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OPTOM FASLU MUHAMMED
 Certain diseases, such as herpes simplex
infections of the cornea and some brain
tumors, result in the loss of normal corneal
sensitivity.
 Testing for the existence of corneal
sensitivity can help confirm a diagnosis of
these conditions.
 This test may be required by the patient’s
history or by the results of the external
examination or slit-lamp examination.
 The examiner merely touches the central
portion of the cornea with a sterile wisp of
cotton to determined whether or not the
patient has a normal corneal sensation.
 A normal response is blink.
 With decreased corneal sensitivity, the
patient does not blink.
THANK U

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Corneal sensitivity test 2

  • 2.  Certain diseases, such as herpes simplex infections of the cornea and some brain tumors, result in the loss of normal corneal sensitivity.  Testing for the existence of corneal sensitivity can help confirm a diagnosis of these conditions.
  • 3.  This test may be required by the patient’s history or by the results of the external examination or slit-lamp examination.  The examiner merely touches the central portion of the cornea with a sterile wisp of cotton to determined whether or not the patient has a normal corneal sensation.
  • 4.  A normal response is blink.  With decreased corneal sensitivity, the patient does not blink.