Ciliary Body And Iris Of The Eye is a photograph by Cnri/science Photo Library which was uploaded on February 24th, 2021.
Ciliary Body And Iris Of The Eye
False-colour, low-power scanning electron micrograph (SEM) of the human eye, showing the ciliary body & iris. The deeply folded tissue at left & top... more
Title
Ciliary Body And Iris Of The Eye
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Cnri/science Photo Library
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Photograph
Description
False-colour, low-power scanning electron micrograph (SEM) of the human eye, showing the ciliary body & iris. The deeply folded tissue at left & top is the ciliary body, which normally encircles & controls the lens of the eye, flattening it to focus distant objects onto the retina & making it more spherical to focus closer ones. In this view, seen from the back of the eye, the lens has been removed. As a result, one can see through to the less folded muscles of the iris, which control the aperture of the pupil (the black area at bottom right) & so the amount of light that reaches the retina. Magnification: x2.5 at 35mm size. Yellow tint. Reference: MICROCOSMOS, figure 2.9, page 19.
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February 24th, 2021
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