Web Results

en.wikipedia.org/wiki/Red-eye_effect

The camera records this reflected light. The main cause of the red color is the ample amount of blood in the choroid which nourishes the ...

www.allaboutvision.com/resources/red-eye-photo.htm

The appearance of red eyes in pictures, known as the "red-eye effect," occurs when a camera captures light reflecting from the retina at the back of your subject's ...

www.photographymad.com/pages/view/the-red-eye-effect-what-it-is-avoiding-it-and-removing-it

Learn what causes it, how to prevent it, and how to fix it. ... The red eye effect is caused by your camera's flash bouncing off the back of the subject's eyes.

sciencenetlinks.com/science-news/science-updates/camera-red-eye

He says red-eye occurs when your camera's flash reflects off the back of the eye ... The purpose of this flash is to cause the subject's pupil to constrict (just as it ...

www.aao.org/eye-health/tips-prevention/diagnosing-children-from-photographs

Jul 28, 2014 ... A red reflex is produced when the flash of a camera lights up the ... the most serious eye conditions don't typically cause children pain or visual ...

www.yalescientific.org/2011/05/what-causes-the-red-eye-effect

May 12, 2011 ... Your modified appearance is caused by the red-eye effect,… ... a result of the eye's biology interacting with the camera's lighting mechanism.

www.todayifoundout.com/index.php/2011/09/what-causes-red-eyes-in-photographs

Sep 15, 2011 ... For instance, camera's with red eye reduction settings use a two flash system in which the first flash causes the pupil to constrict, and the ...

www.ask.com/youtube?q=What+Causes+Red+Eye+in+a+Camera&v=KBk0LBMjmbI
Dec 30, 2014 ... How can a camera's flash make your eyes glow red? Tune in to learn how it works -- and how to prevent it. Learn more at HowStuffWorks.com: ...

photo.stackexchange.com/questions/47553/can-red-eye-in-only-one-eye-be-a-sign-of-cancer

Feb 3, 2014 ... Having one red eye could happen if, for example: ... If in doubt, I would suggest to the client that 'it can be a symptom of eye problems, you ... can deduct from only one red eye is: only one eye was directed towards the camera.