What does a person with a negative scotoma see?

Discussion in 'Optometry Archives' started by douglas, Aug 19, 2009.

  1. douglas

    douglas Guest

    What does a person with a negative scotoma see? A black area? A white
    area?
     
    douglas, Aug 19, 2009
    #1
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  2. douglas

    Dr Judy Guest

    They see nothing in the scotoma area.

    While looking staight ahead, consider what you "see" behind you. Is
    it black or white or "nothing".

    Judy
     
    Dr Judy, Aug 20, 2009
    #2
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  3. douglas

    douglas Guest

    I can't imagine what having a massive negative scotoma would be like.
    What do your negative scomata patients report? What does "seeing
    nothing" mean?
     
    douglas, Aug 20, 2009
    #3
  4. douglas

    Dr Judy Guest

    The essence of negative scotoma is that the patient is unaware of the
    loss. The example I used, "while looking forward, what do you see
    directly behind your head" is what seeing nothing means. Not black,
    not white, not a hole, not a lack, simply unaware and "nothing".
     
    Dr Judy, Aug 20, 2009
    #4
  5. douglas

    douglas Guest

    So if I were to move my finger through the area in the visual field
    where a negative scotoma was, would it disappear while moving in it,
    and reappear on the other side?
     
    douglas, Aug 20, 2009
    #5
  6. douglas

    Jan Guest

    Jan, Aug 20, 2009
    #6
  7. douglas

    douglas Guest

    I suppose the world would be very strange if your entire visual field
    was a negative scotoma.
     
    douglas, Aug 20, 2009
    #7
  8. douglas

    douglas Guest

    Um...it doesn't. All it tells me I that I don't have AMD. But it's
    unusable for my right eye, b/c it's acuity is so poor I can't see the
    dot or grid.

    Is ROP a form of wet MD?
     
    douglas, Aug 20, 2009
    #8
  9. douglas

    Jan Guest

    douglas schreef:
    It is called "blind"

    Jan (normally Dutch spoken)
     
    Jan, Aug 20, 2009
    #9
  10. douglas

    douglas Guest

    Doesn't psychogenic blindness also cause that?
     
    douglas, Aug 21, 2009
    #10
  11. douglas

    douglas Guest

    I wrote an extra credit paper on that for psychology class.

    Have your or Judy ever seen a patient w/ psychogenic blindness? What
    was the cause?
     
    douglas, Aug 21, 2009
    #11
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