23460Re: [SCA-Archery] Re: Help with scary vision thing.
- Sep 12, 2007About four years ago I began seeing areas of my field of vision
blurring periodically. I tried closing one eye and then the other
and realized that it was not associated with either eye. I have
suffered from periodic severe headaches since I was about 13. I was
scheduled to take my mother to the Cleveland Clinic for an eye exam
and made an appointment for myself at the same time. My exam was
routine and when I spoke with the doctor afterwards I mentioned the
occasional blurring. He asked if I have had bad
headaches. Apparently what I was seeing is called scintillating
scotomas, a classic indicator of a pending migraine. Once I realized
I have been suffering from migraines all these years I began treating
myself once per week with tryptophan which is converted to serotonin
in the brain. I haven't had a migraine attack since. I saw
scintillating scotomas once at Pennsic and bought and ate a bunch of
bananas from the fruit stand. Bananas are full of tryptophan as is
milk, and turkey. You may be experiencing something of this
sort. If it returns or persists, your best bet is to see your eye doctor.
>Jim Koch (Gladius The Alchemist)
>[Non-text portions of this message have been removed]
> At 07:42 PM 9/12/2007, you wrote:
>1. Are you a med student / pre-med?
>2. How much sleep have you had in the past week?
>3. How long had you been up when you started shooting?
>Disclaimer: I'm not a doctor, I'm an engineer. However, in my
>profession, it might be mildly stated that we learn a thing or two
>Visual distortion and other forms of optical hallucination are not
>uncommon when under extreme stress and dealing with sleep
>deprivation. You mentioned being fatigued, as well as being very
>disconcerted and even scared by the phenomenon. It sounds to me
>like you may have had a little optical muscle-twitch that fed back
>on itself as you started concentrating harder and harder on it.
>Again I emphasize, I'm not a doctor. If it happens again
>(especially after you've caught up on your sleep) go see your GP or
>Meriwether Lutre <Merry@...> wrote:
> > Last night at archery practice, I was extremely disconcerted to
> > 5-ring 60cm bull optically distort each time I was taking a shot.
> > was very upsetting and not a little scary. I'm attending King's
> > of Archers this weekend and I'm terrified that it might happen
> > even more terrified that it might be the symptom of some greater
> > like some sort of tumor or other difficulty that would lead to at
> > migraines and blindness, if not something far worse.
> > I've created a somewhat accurate representation of how things
> > though I think at times despite the rings floating so that they
> > 'touched' the outside of the next larger ring, it did seem that
> > whole thing ended up being asymmetrically more towards one
> > i.e., in my drawing the bull still remains centered in the target
> > overall, but I don't think that was, or always was the case here.
> > Here's the image (the rings aren't the correct colors and the
> > are not properly sized but it still illustrates what was happening)
> > If the inline image does not come through on the list, you can see
> > here as well:
> > Here are further details:
> > 1. I do not close my non-dominant eye while sighting on the target.
> > 2. If I switched sides to see if it was one eye or the other, the
> > thing happened, though if I remember right it seemed to drift to
> > left instead of seeming to drift to the bottom right. I may be
> > misremembering.
> > 3. I don't recall if it 'drifted' into the configuration really
> > or if it was just 'that way' when I focused down.
> > 4. At 20 yards
> > 5. May be my glasses. I was fiddling with them all through
> > after it started happening but to no avail.
> > 6. I am severely fatigued
> > 7. I think I actually shot more accurately when I didn't try to
> > 8. It left me disoriented and a little unsteady on my feet, and
> > have to close my eyes tightly and breathe a bit after every let,
> > opening to prevent slight vertigo. It also left me very upset,
> > preoccupied and depressed.
> > Do any of you know anything about this? To be quite often, having
> > image pasted in the document while I compose and look below it is
> > creating a very similar disorientation and vertigo
> > Please... please have good news. I'm beside myself with concern
> > this, and more than a little scared.
> > --
> > // Merry
> > ----------
> > "Merry" Toirdhealbhach Meriwether Lutre
> > Shire of Standing Stones, University of Missouri at Columbia
> > Formerly known as Philippe Sebastian LeLutre
> > Mundanely known as Christian M. Cepel
> > <http://Thistledowne.org>http://Thistledowne.org
> > 'Toirdhealbhach' or modernly Anglicized 'Turlough'
> > Is pronounced as 'tur-low' or tur-logh'
> > [Non-text portions of this message have been removed]
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