floaters darkened a bit after pupil dilation, plausible?

Discussion in 'Optometry Archives' started by Kyle, Oct 28, 2005.

  1. Kyle

    Kyle Guest


    I noticed a very small subtle (~2%) darkening of point size
    floaters after pupil dilation was initiated by the
    ophthalmologist to see inside my retina.

    Is it possible that pupil dilation which I read can cause
    very small interocular pressure can press or compress some
    portion of floaters making them darker?

    Is this plausible or not possible at all? I can't get
    in touch with the opthalmology because he was out of the

    Kyle, Oct 28, 2005
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  2. When you "see" your floaters, you are not actually seeing the floater
    itself, but instead you are seeing a shadow that the floater casts on
    your retina. So, when you have a thorough dilated examination the
    vitreous can be stirred up enough to move the floater forward or
    backward from your retina. As you know when making finger puppet
    shadows with kids, the longer the distance from the puppet to the
    screen, the bigger the image.
    Hence, a floater moving slightly closer to the front of the eye will
    cast a LARGER SHADOW, hence appearing bigger. So, the dilation did not
    physically change the size of your floater, but only the image of it
    that you see..
    doctor_my_eye, Oct 28, 2005
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  3. Kyle

    Kyle Guest

    Gee. Know any method (such as shaking my head intensely) so I can
    bring the floaters farther from the retina (more forward to the
    front or lens)? I didn't know dilated examination can move it. Is
    there any chance it can create new ones by solidfying a bit?

    Kyle, Oct 29, 2005
  4. There is no "scientific method" top move your floaters. But, the "old
    farm wife's remedy" for floaters is to prop your forehead on your
    pillow and sleep face down for a month. In theory, you are using
    gravity to pull your floaters into the front lower third of your
    vitreous, which is away from your visual axis.
    I personally never slept face down for a whole night, let alone every
    night for a month. Something about suffocation makes me flip over in
    my sleep. ;)
    doctor_my_eye, Oct 29, 2005
  5. There is no "scientific method" TO MOVE..... (typing too fast.
    doctor_my_eye, Oct 29, 2005
  6. Kyle

    Kyle Guest

    What dictates whether the floaters would move front or back during
    pupil dilation drops?? If there is tendency to move back near
    the retina. Does it mean after every pupil dilation sessions,
    your floaters can get nearer the retina. There must be some
    dynamics involved that can make the floaters move back or front
    in pupil dilation, what is that.

    I'm asking because I may have an Optic Coherence Tomograph. Does
    this OCT scan include 360 degree scan such that every point of
    the retina is scanned??

    I'd like to have full analysis of my retina. Can the OCT see
    micro retinal tear?

    Kyle, Oct 29, 2005
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