A Close up Look Infographic – #3 – Chameleon vision/Focusing

A Close Up Look #3 - Chameleon Vision/Focusing Infographic

How do our eyes focus on moving objects and chameleon eyes zoom into their environment? Learn about the differences between the human eye and chameleon eyes in our latest infographic.

An insightful infographic written and illustrated by Gil Torten.

Author(s)

  • Gil Torten is currently in his 2nd year of his Ph.D. at UCLA. His research is particularly interested in vision, specifically in the maintenance and function of the photoreceptor cell in the retina, with a focus on utilizing new technology in microscopy to better understand this complex cell. While Gil spends a bit too much time in the lab, he is also passionate about art and has been working with clay in some capacity for over 12 years - see his work on his Instagram: @tortenceramics. In the future, Gil hopes to use his experience in both art and science to encourage cross disciplinary education in K-12 and in universities, and teach others about the value of exploring a wide range of interests

Gil Torten

Gil Torten is currently in his 2nd year of his Ph.D. at UCLA. His research is particularly interested in vision, specifically in the maintenance and function of the photoreceptor cell in the retina, with a focus on utilizing new technology in microscopy to better understand this complex cell. While Gil spends a bit too much time in the lab, he is also passionate about art and has been working with clay in some capacity for over 12 years - see his work on his Instagram: @tortenceramics. In the future, Gil hopes to use his experience in both art and science to encourage cross disciplinary education in K-12 and in universities, and teach others about the value of exploring a wide range of interests

3 thoughts on “A Close up Look Infographic – #3 – Chameleon vision/Focusing

  • March 5, 2021 at 5:21 pm
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    Enjoyed the infographic please keep it coming.. I wanted to ask that – we know that vision is sharp at center of eyes that is at fovea as compared to periphery (the reason given is that concentration of cones is more at fovea in contrast to lesser concentration of cones on periphery) but is there any other explanation for this other than above mentioned one (cause the relaying neurons behind cones or rods would be the ones which can make difference here right but I never understood it’s exact nature ) please help me out here..

    Reply
    • March 7, 2021 at 10:29 am
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      Glad you enjoyed it!

      So the higher concentration of cones in the fovea is the primary reason, but there are a couple other factors that play a role.

      First, the density of ganglion cells (the last cell in the retinal pathway before it goes to the brain) is much higher in the fovea than the periphery. Since these cells are very sensitive to particular types of light signal and movement it heavily improves contrast and edge detection in the center of the visual field. There are also more overall ganglion cells per visual area, so you can notice more minute differences in the center of your vision.

      Second, there’s some new research at UCLA showing that identical cell types could actually have very different gene expression entirely based on their location with the retina! For example, a rod photoreceptor in the fovea may appear morphologically and functionally very similar to one in the periphery, but it could have a very different gene expression profile changing the way it responds to light in ways that enhance foveal vision. If you’re interested in this, check out this paper by Yirong Peng, a new faculty member at UCLA – https://pubmed.ncbi.nlm.nih.gov/30712875/ . Pretty exciting work!

      Reply
  • March 7, 2021 at 5:59 pm
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    There are also more overall ganglion cells per visual area, so you can notice more minute differences in the center of your vision” -ohh now it makes sense
    Great thanks for your attention
    Surely I will go through the article
    Thanks

    Reply

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