What Causes Scaly Eye Pigmentation Around the Iris?

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The discussion centers around identifying an image that was initially thought to be a nebula but is confirmed to be a photo of a retina taken with a fundus camera. Participants note the presence of the optic nerve at the center and eyelash shadows in the lower right corner. There is curiosity about a formation in the bottom left, with suggestions ranging from it being related to pigmentation around the iris to potential signs of disease. One contributor shares their experience maintaining fundus cameras, noting that their images typically had an orange hue due to filters used for detecting macular degeneration. Overall, the consensus is that the image is indeed a retinal photograph, with various interpretations of the unusual formations present.
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Can anyone tell me what this is?
 

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nebula
 
It's definitely not a nebula. It has veins. I'd guess the greenish thing is a fiber optic cable, and this is some kind of a laser surgery.

- Warren
 
oh--you can blow up the photo-----maybe the retina
 
An illuminated phoetus?
 
A nebula with veins
 
Definitely a retina picture. That's the optic nerve in the center. There are even eyelash shadows in the lower right. I'm really curious as to what that formation is on the bottom left is.
 
Greg Freeman said:
I'm really curious as to what that formation is on the bottom left is.
That's what I was wondering.
 
Evo said:
That's what I was wondering.

Hah I said "is" twice in that sentence, whoops.


I initially thought tears ducts, but I don't think so. I've seen discolorations inside of those pictures before, but that looks kind of like scales or some kind of disease, I dunno.
 
  • #10
Yep! It's a photo of a retina through a fundus camera. I used to maintain these cameras at an opthalmic practice, when I was (nominally) the network administrator, but generally got tapped to fix anything that broke. The photos that came out of our cameras tended to be more on the orange side, and that may have been because we were filtering to identify early signs of macular degeneration.
 
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  • #11
Greg Freeman said:
Definitely a retina picture. That's the optic nerve in the center. There are even eyelash shadows in the lower right. I'm really curious as to what that formation is on the bottom left is.

I thought it was just pigmentation of the eye around the iris
 
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  • #12
rewebster said:
I thought it was just pigmentation of the eye around the iris

It's weird with the scaly formation. If you look diagonally across the image you can see a blue/green reflection of the edge of the iris, I think. But I'm an engineer, not a medical person, so take my opinion for what it is :-p
 
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