Similar Effects
Similar effects, some related to red-eye effect, are of several kinds:
- In many flash photographs, even those without perceptible red-eye effect, many animals' pupils display eyeshine. Although eyeshine is an unrelated effect, animals with blue eyes may display the red-eye effect in addition to eyeshine.
- A related effect, red reflex, is seen in fundoscopy; unlike the red-eye effect, it is not a photographic effect.
- In photographs recorded with infrared-sensitive passive (non-IR emitting) equipment, the eyes (not only the pupils) usually appear very bright. This is due not to reflection, but to radiation of core body heat in the form of infrared light (see Night vision).
Read more about this topic: Red-eye Effect
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