FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   PreferencesPreferences   Log in to check your private messagesLog in to check your private messages   Log inLog in 
Forum index » Medicine forums » patology
Visual Migraine
Post new topic   Reply to topic Page 1 of 1 [3 Posts] View previous topic :: View next topic
Author Message
Green
medicine forum beginner


Joined: 05 May 2006
Posts: 7

PostPosted: Sat May 27, 2006 4:46 am    Post subject: Visual Migraine Reply with quote
Visual migraine affects the lens of the left eye causing auras. The
blood vessels supplying the lens constrict suddenly and completely.
This starves the lens of necessary proteins it can only recieve from
the blood (hemoglobin included). Symptoms are:

1. Visual distortion; 2-D images appear 3-D; visual hallucinations
2. Loss of image perception
3. Loss of color perception
4. Intense aching pain in that lens due to protein starvation
5. Sudden and complete blindess; subject cannot tell even dark or
light!; the description is usualy "seeing nothing at all", no light, no
darkness. Just totaly blank. Wierd feeling!
Back to top
Repeating Rifle
medicine forum Guru Wannabe


Joined: 04 May 2005
Posts: 141

PostPosted: Sat May 27, 2006 6:59 am    Post subject: Re: Visual Migraine Reply with quote
On 5/26/06 9:46 PM, in article
1148705198.722080.295630@j33g2000cwa.googlegroups.com, "Radium"
<glucegen@excite.com> wrote:

Quote:
Visual migraine affects the lens of the left eye causing auras. The
blood vessels supplying the lens constrict suddenly and completely.
This starves the lens of necessary proteins it can only recieve from
the blood (hemoglobin included). Symptoms are:

1. Visual distortion; 2-D images appear 3-D; visual hallucinations
2. Loss of image perception
3. Loss of color perception
4. Intense aching pain in that lens due to protein starvation
5. Sudden and complete blindess; subject cannot tell even dark or
light!; the description is usualy "seeing nothing at all", no light, no
darkness. Just totaly blank. Wierd feeling!

I think this posted "information" is incorrect. I am not a health

professional. I presume you mean ocular migraine.

Having suffered through ocular migraine, I was informed by ophthalmologists
and neurologists, that this phenomenon is not related to defects of the eye
itself. It is caused by not well understood neurological factors after
signals from the retina pass through the optic nerve chiasm.

Of course, your problem might be something else.

Bill
-- Ferme le Bush
Back to top
judy.n@gmail.com
medicine forum beginner


Joined: 26 May 2006
Posts: 9

PostPosted: Sat May 27, 2006 1:22 pm    Post subject: Re: Visual Migraine Reply with quote
Bill,
I agree with you. The lens is actually not really supplied with
direct blood vessels, the ocular symptoms of migraine are due to
disturbances in the cortex of the brain that controls vision and/or the
optic nerve. The lens only refracts light, it doesn't produce
vision--that's what the retina and brain are for. At least that's my
current understanding of the mechanism for visual changes in migraine
and opthalmic migraine. (Without doing some basic research into this.)
Judy
Back to top
Google
Back to top
Display posts from previous:   
Post new topic   Reply to topic Page 1 of 1 [3 Posts] View previous topic :: View next topic
The time now is Sat Nov 22, 2008 7:22 am | All times are GMT
Forum index » Medicine forums » patology
Jump to:  

Similar Topics
Topic Author Forum Replies Last Post
No new posts Images of visual distortion Gary vision 6 Fri Jul 14, 2006 11:38 am
No new posts migraine, blood pressure, maybe chole... Napoleon cardiology 44 Thu Jun 22, 2006 7:24 pm
No new posts Visual Snow/Headaches/Anxiety? hammad.awan_nospam@gmail. vision 4 Mon Jun 12, 2006 6:23 pm
No new posts Questions about Unilateral Visual Auras Radium vision 10 Wed Mar 22, 2006 1:59 am
No new posts 2005: Abrupt visual loss in children.... CaliforniaLyme lyme 0 Sat Jan 14, 2006 8:59 pm

Insurance | Myspace Proxy | McDonalds | Mortgages | Vacation Spots
Copyright © 2004-2005 DeniX Solutions SRL
Other DeniX Solutions sites: electronics forum, Science forum Unix/Linux blog Unix/Linux documentation Unix/Linux forums


Powered by phpBB © 2001, 2005 phpBB Group

[ Time: 0.4333s ][ Queries: 16 (0.3576s) ][ GZIP on - Debug on ]