Fig. 4. Infra-red video images of the eye of Liposarcus pardalis (standard length 14 cm) in (A) the absence of any visible light and (B) after 60 min exposure to 5.6x10³ µW cm^-2 white light. Illumination resulted both in a decrease of pupil diameter and the outgrowth of an iris flap, such that overall pupil area following illumination in this example is 34% of the dark-adapted value. Scale bar, 2 mm.

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