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364584 tn?1197943485

Single Iris Strand Across Pupil?!

Ok, I'm seriously stumped.  After endless hours of searching and researching, I've found nothing that matches the case of my boyfriend's funky iris.

Basically, he has fairly normal, brown pigmented irises, though if compared to each other they appear to be slightly differing in size and shape.  It wasn't until recently, when I took a picture of his unusually dilated pupil (dilated in midday, I may add) that I realized he had a strand of iris fiber stretching across the pupil of his right eye.

I'm not concerned that it's necessarily a disease of his eye.  However, I'm concerned it may indicate an underlying problem.  The only site I found with an iris with a similar appearance was one dealing in iridology, not something I take too seriously myself.  (The site is here: http://cnri.edu/content.asp?contentid=521, and the eye in question is the seventh one down, the "Weak Connective Tissue type  - Mesenchymal Pathological Constitution".)

Instead of just explaining it, let me link to actual pictures we've taken:

http://www.hotherym.net/bilder/Photos/Organisms/Drin%20Left%20Iris.jpg 'Normal' left eye.
http://www.hotherym.net/bilder/Photos/Organisms/Drin%20Right%20Iris%2001.jpg 'Abnormal' right eye, also showing what I felt was unusual dilation for the amount of light (which was initially why I snapped the picture).
http://www.hotherym.net/bilder/Photos/Organisms/Drin%20Right%20Iris%2002.jpg Same, but closer, showing the strand more clearly.
http://www.hotherym.net/bilder/Photos/Organisms/Drin%20Right%20Iris%2004.jpg Same eye, with lighting to show the depth of the iris as well.

In addition to his perplexing eye problem, he has a mild pectus excavatum (his mother, however, has a pronounced pectus carinatum), corrected full phimosis, possible low bone density (he breaks his bones easily), somewhat disproportionately large head, mild scoliosis, and an as-of-yet identified golf ball sized and very hard (but movable) tumor near his th1 vertebra, which seems to be causing some displacement.  Additionally, he has no 'café au lait' birthmarks, and I pick up on an intermittent click murmur, occasionally with what sounds like a quiet late systolic murmur, when I listen to his heart.  I don't know if this will help anyone with experience or with similar symptoms but I felt it was necessary to mention as an aside.

The health community where he resides has been little to no help.

If anyone has any input at all, I'd be incredibly grateful.
7 Responses
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177275 tn?1511755244
Not a week goes by that I don't see someone, mostly people with brown eye, that have strands of iris tissue going across the pupil or stuck to the lens capsule. Its a developmental curiosity and not the same as persistent pupillary membrane.
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Avatar universal
I have the same thing!!!
I have brown eyes, my right eye has a strand of Iris across the pupil.
I can't find info on this anywhere, I thought I was the only one in the world with this!
contact me if you have more info !
***@****
Helpful - 0
233488 tn?1310693103
MEDICAL PROFESSIONAL
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Helpful - 0
364584 tn?1197943485
Yes!  Thanks again.  That gave me an idea what to search for and I came up with 'persistent pupillary membrane,' which sounds at least very similar.  Unfortunately it was mostly about basenji dogs, but it's good enough for me right now.

Thanks again for all your help.  It's much appreciated.
Helpful - 0
233488 tn?1310693103
MEDICAL PROFESSIONAL
In the last trimester of pregnancy while the eye is forming the iris is solid, then the pupil develops by the center of the iris disolving. The strands are where it did not completely disolve. Nevertheless he does need a check-up.

JCH III MD
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364584 tn?1197943485
Unfortunately he's not been to an ophthalmologist (or optometrist) in his life, and I'd definitely like it if he could see one.  I'm really curious what's up with that strand.

Thank you for the reassurance and compliments, Dr. :)
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233488 tn?1310693103
MEDICAL PROFESSIONAL
Hey great pictures. You seem to have picked a one of a kind guy.

The little wisps of iris tissue onto the lens front surface are not anything to worry about, are very common, are not associated with any particuliar intraocular disease.

However if your friend has not had a medical eye exam in the last 2-3 years he should see an eye MD for a medical exam. Find one at www.aao.org

JCH III MD
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177275 tn?1511755244
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