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The bright light from the flash reflects off the back of the eye where there are a great many blood vessels, this makes the light appear red as it is reflected back out of the eye.
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∙ 13y ago
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Do ducks get red eye on photos?
Animals can exhibit the same characteristic retinal reflection that causes "red eye" in people photographs. I know of no animal that reflects red, but have seen many a dog, raccoon or cat photo where the eyes were blueish or green.
Where can I find a free photo editor to take away the red eye effect on my photographs?
Kodak has a free photo editor that works great. It reduces red eye and your photographs will look fantastic. It looks like a professional has done them.
What causes red eye in swimming pools?
the devils pee
What is A highly vascular layer of the eye that containing rods and cones?
The retina (the red of your eye that you sometimes see in photographs) are where the rods and cones are located.
What does it mean when your eye hurts when you blink and its pinkish red?
Probably not. Pink eye causes drainage from your eye and will make it watery and may even cause yellow/green puss to drain from your eye. Your eye will also be red and itchy.
A failure of the red-sensitive nerves in the eye to respond to light properly causes?
color blindness
Weed causes eye redness how can you stop the redness or what is the precaution to take?
get eye drops (for red eye it says it right on the bottle)
Why do eyes appear red in photographs sometimes?
I Think its because the fflash can reflect of the persons eye and back into the lense..? Not 100% sure though, hope this helps That's correct!
A failure of the red-sensitive nerves in the eye to respond to respond to light properly causes?
Color blindness is the failure of the red sensitive nerves in the eye that don't respond to light properly.
What causes one pupil to be red in photographs and the other pupil to remain black?
The red-eye effect in photography is the common appearance of red pupils in color photographs of eyes. It occurs when using a photographic flash very close to the camera lens (as with most compact cameras), in ambient low light. Red-eye effect appears in the eyes of humans and animals that have no tapetum lucidum, hence no eyeshine, and rarely in animals that have a tapetum lucidum. The red-eye effect is a photographic effect, not seen in nature.Because the light of the flash occurs too fast for the pupil to close, much of the very bright light from the flash passes into the eye through the pupil, reflects off the fundus at the back of the eyeball, and out through the pupil. The camera records this reflected light. The fact that the reflected light is red often is attributed to the ample blood supply of the retina and/or chorium, but this is incorrect. The red-eye effect is due to the color of the fundus, which is due to melanin, a pigment, principally located in the retinal pigment epithelium (RPE).Although in many animals the RPE is black, in humans it is brown. Red-eye effect is more pronounced in people and animals with lighter colored eyes, especially grey or blue eyes, and in children. In both groups, all tissues of the eye have relatively less melanin. In a pale eye, and in a child's eye, not only does the iris have less melanin to stop stray light from passing through it, but also the retina and choroid have less melanin to absorb stray light that enters the eye. The role of melanin in red-eye effect is most clearly seen in animals with heterochromia: only the blue eye displays the effect. The effect is still more pronounced in humans and animals with albinism. All forms of albinism involve abnormal production and/or deposition of melanin. Red-eye effect is seen in photographs of children also because children's eyes have more rapid dark adaption: in low light a child's pupils enlarge sooner, and an enlarged pupil accentuates the red-eye effect. More information on the related link below.
What does tetrahydrozoline do?
It removes the red eye infection to our eye. It removes the red eye infection to our eye.
Which rays are used to take photographs in dark?
infra red
