Encyclopedia

red eye

Also found in: Dictionary, Medical, Idioms, Wikipedia.

red eye

The appearance of red eyes on people and animals when pictures are taken with flash. In dimly lit environments, the eye's iris opens to let in more light. The light from the flash unit reflects back from the retina, which is full of blood vessels; hence, the red look.

Pre-Flash
Some cameras have an option that produces a flash of light just ahead of the actual flash. The first flash causes the iris to close, eliminating some of the reflection.

Automatic and Manual Removal
Some digital cameras have red eye removal, which removes the red before the image is stored in the camera's flash memory. The removal may be automatic or an option that can be enabled and disabled. However, all photo editing programs have red eye removal. It requires that the user highlight the area around the eyes and either select a default removal function or adjust the amount of reduction. Some programs offer options for replacing the red with a color, which is helpful for pictures where the eyes are an important focal point.

The red can always be removed manually in an image editor by carefully replacing the red with the correct eye color. Although this takes a fair amount of practice to do it well, the results are often the best.


Red Eye Removal
In Nabocorp's excellent cam2pc photo editor, red eye removal is accomplished by sliding a lever to the desired result using the adjustment in the dialog box at the bottom left. (Images courtesy of Nabocorp Softwares, www.nabocorp.com)


Red Eye Removal
In Nabocorp's excellent cam2pc photo editor, red eye removal is accomplished by sliding a lever to the desired result using the adjustment in the dialog box at the bottom left. (Images courtesy of Nabocorp Softwares, www.nabocorp.com)
Copyright © 1981-2025 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
Mentioned in
References in periodicals archive
The most commonly reported symptom was eye injury 368(39.7%), followed by red eye, painful eye, swollen eyes, reduced vision, itching, watery eyes, eye discharge and burning eyes (Table-2).
Frequency of ocular emergencies in a tertiary care setting in Karachi, Pakistan - It is time to reduce unnecessary visits
A 35-year-old woman presents with a painful red eye for two days.
Cases of red eye
Although Hirt had already left Red Eye by the time Twitter's popularity rose, she watched Red Eye react and shift its target to reach that audience.
The right stuff
The Red Eye from Red CCTV is a detector that makes a difference, the wide-angle camera records a 10 second video, this video is sent to the monitoring station where agents can watch in real time, eliminating uncertainty.
Exciting Times Currently at Red CCTV
In the last ten days, increased cases were reportedly recorded in Juba Teaching Hospital (JTH), with United Nations clinics (UNDP and UNMIS) also reporting red eye cases among its staff.
WHO confirms Red Eye disease outbreak in South Sudan
This article describes a pediatric clinical case presentation of red eye. In addition, a discussion of the most common differential diagnoses for the presentation of red eye and its treatment is provided.
Differential diagnosis of red eye
Covering Photoshop essentials in general, including Photoshop 7 and Photoshop CS in particular, "Digital Photography" addresses simple and complex retouching techniques, removing 'red eye' from images, cloning, hand tinting, restoring old photographs, photo montages, digital painting, adding text to images, special effects, storing images, creating photo essays, printing, file size, composition, color theory, bracketing, lighting, backgrounding, and so much more.
Digital Photography
FotoNation embedded red-eye reduction technology finds and digitally corrects red eye caused by a reflection of the flash off the cornea of the eye.
FOTONATION RED-EYE REDUCTION IN 50 MILLION CAMERAS
Indoor flash photos are often marred by "red eye," which is caused by the reflection of the flash off the eye's retina.
Photoshop tips: perfecting the imperfections
While I may grumble about the red eye flights back from Las Vegas or the clothes that need ironing every time I unpack my bag, the reality is that meeting our readers and advertisers face-to-face has yet to be topped by an e-mail note.
On being a road warrior
Though he's never taken an acting class in his life, Murphy landed the first role he ever auditioned for--in an acclaimed play called Disco Pigs--and set aside dreams of playing rock and roll for a career that has included Cold Mountain and two big hits this summer--the blockbuster Batman Begins and the Wes Craven thriller Red Eye.
Red Eye to eye shadow: hot off rave reviews from summer hits Batman Begins and Red Eye, Irish actor Cillian Murphy does drag for Crying Game director Neil Jordan in Breakfast on Pluto
Copyright © 2003-2025 Farlex, Inc Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.