What Causes Scaly Eye Pigmentation Around the Iris?

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Discussion Overview

The discussion revolves around identifying and understanding an image that appears to show scaly eye pigmentation around the iris. Participants explore various interpretations of the image, considering its potential origins and implications, with a focus on anatomical and photographic aspects.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants suggest the image could depict a nebula, while others firmly reject this idea, proposing it shows a retina instead.
  • One participant speculates that the greenish feature might be a fiber optic cable related to laser surgery.
  • There is a consensus among several participants that the image is indeed a photograph of a retina, with specific references to the optic nerve and eyelash shadows.
  • Participants express curiosity about a particular formation in the image, with some suggesting it resembles scales or a disease, while others consider it as pigmentation around the iris.
  • A participant with experience in maintaining fundus cameras shares insights about the typical coloration of such images, noting a potential filtering effect for identifying macular degeneration.

Areas of Agreement / Disagreement

While there is some agreement that the image is likely a retinal photograph, there remains uncertainty regarding the specific nature of the formations observed, with multiple interpretations and no consensus on their meaning.

Contextual Notes

Participants express differing opinions on the interpretation of the image, highlighting the potential for misidentification based on visual characteristics. The discussion includes assumptions about the nature of the formations and the context of the image capture.

Who May Find This Useful

Individuals interested in ophthalmology, medical imaging, or those curious about anatomical photography may find this discussion relevant.

GreenLRan
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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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