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vision jumps (big to small) and "colored sand"

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Unread 02-21-2014, 05:08 PM   #1
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Default vision jumps (big to small) and "colored sand"

Hi All,

My son is almost 12 and when he was about 4 he asked why bright reflections looked like "colored sand". He still has this phenomomon. The past year he now also has an occurrance where it is like a lens magnification switch being flipped, where everything appears smaller, then snaps back after a few seconds, perhaps several times. Anything familiar sounding that I can research? Costco took super high-rez images of his eyes and besides having my nearsightedness, his eyes are healthy.
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Unread 02-21-2014, 05:37 PM   #2
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Hi there.

Welcome to the NeuroTalk Support Groups.

Not sure about the coloured sand part, but your post caught my eye regarding the vision jumps. Does your son have any other conditions like Epilepsy or Migraine, or anything else? Does he wear glasses? (edited to add: I've also heard of people with gluten sensitivity who have visual disturbances such as micropsia.)

You might like to search for "Micropsia".

I'd get a referral to a Neurologist if it was my boy.

Please let us know how he's doing.


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Unread 02-21-2014, 08:02 PM   #3
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He does wear glasses and is very healthy, with exception of a few months when every week or two he was throwing up at night for no reason. No headaches but migraines was mentioned as possibility by stumped pediatrician.
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Unread 02-22-2014, 01:10 AM   #4
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Migraines don't always involve headaches; they're called acephalgic migraine (sometimes referred to as 'silent migraine'). They often/usually involve visual aura/component.

Dr. Zachary Smith
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Dr. Smith is NOT a medical doctor. He was a character from LOST IN SPACE.
All opinions expressed are my own. For medical advice/opinion, consult your doctor.
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Unread 03-09-2014, 05:38 AM   #5
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Default Vision abnormailties

When he says his vision looks like colored sand does he mean it looks "grainy" as if he has lost fine resolution. Sort of like going from 720p to 240p on a youtube video?

Also does he note any "shimmering" of his vision when this happens? By this I mean something akin to objects seen through the hot air coming off a desert blacktop road.

And when he has his vision "jump" is it like he's looking through a zoom lense then it pops back to normal? This can go either way, that is from zoom-in back to normal or zoom-out back to normal.
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