Leukocoria
Leukocoria (also leukokoria [ [http://medical-dictionary.thefreedictionary.com/leukokoria thefreedictionary.com] ] ) is an abnormal white reflection from the
retina . Despite its color, the reflection is related to the familiarred-eye effect , not to eyeshine. Leukocoria can be detected by routine medicalophthalmoscopy . Usually, when a light is shone through the iris,Fact|date=June 2008 the retina appears red to the observer. In leukocoria, the retina abnormally appears white. This may indicate congenitalcataract s,retrolental fibroplasia ,corneal scarring ,retinoblastoma ,ocular toxocariasis ,persistence of the tunica vasculosa lentis (PFV/PHPV), Coats' disease,Norrie disease ,melanoma of theciliary body [Demirci H et al. Leucocoria as the presenting sign of a ciliary body melanoma in a child. Br J Ophthalmol 2001;85:115-6. PMID 11201946.] , etc. Because of the potential life threatening nature of retinoblastoma, acancer , that condition is usually considered in the evaluation of leukocoria.References
External links
* [http://rad.usuhs.edu/medpix/medpix_image.html?quiz=no&imageid=31018&widgets=-1&start=-1&mode=#top PHPV] Persistent Hyperplastic Primary Vitreous
* [http://rad.usuhs.edu/medpix/master.php3?mode=slide_sorter&imageid=8285&pt_id=3875&topic_id=2607&quiz=no#top Retinoblastoma] MedPix Images
Wikimedia Foundation. 2010.
Look at other dictionaries:
leukocoria — noun An abnormal white reflection from the retina of the eye, a medical sign for a number of conditions … Wiktionary
leukocoria — leu·ko·co·ria (loo″ko korґe ə) leukokoria … Medical dictionary
leukocoria, leukokoria — Reflection from a white mass within the eye giving the appearance of a white pupil. SYN: leukokoria, white pupillary reflex. [leuko white, + G. kore, pupil] … Medical dictionary
Red reflex — The red reflex refers to the reddish orange reflection from the eye s retina that is observed when using an ophthalmoscope or retinoscope from approximately 30 cm / 1 foot. This examination usually done in a dimly lit or dark room. Many eye… … Wikipedia
Norrie disease — Classification and external resources ICD 9 743.8 OMIM 310600 DiseasesDB … Wikipedia
Red-eye effect — 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… … Wikipedia
Tapetum lucidum — The tapetum lucidum (Latin: bright tapestry , plural tapeta lucida) [ [http://www.archives.nd.edu/cgi bin/lookup.pl?stem=tapet ending=um Latin Word Lookup ] ] is a layer of tissue in the eye of many vertebrate animals, that lies immediately… … Wikipedia
Chromatic adaptation — is one aspect of vision that may fool someone into observing a color based optical illusion, such as the same color illusion. An object may be viewed under various conditions. For example, it may be illuminated by sunlight, the light of a fire,… … Wikipedia
Color theory — For the American electronica/synthpop musician, see Color Theory. In the visual arts, color theory is a body of practical guidance to color mixing and the visual impacts of specific color combinations. Although color theory principles first… … Wikipedia
Retinoblastoma — DiseaseDisorder infobox Name = PAGENAME ICD10 = ICD10|C|69|2|c|69 ICD9 = ICD9|190.5 ICDO = ICDO|9510|3 Caption = Leukocoria of right eye indicating presence of tumor OMIM = 180200 MedlinePlus = 001030 eMedicineSubj = oph eMedicineTopic = 346… … Wikipedia
