Leukocoria

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Leukocoria
Classification and external resources
File:Rb whiteeye.PNG
A child with leukocoria due to retinoblastoma in the left eye
ICD-9 360.44
DiseasesDB 33379

Leukocoria (also leukokoria[1]) is an abnormal white reflection from the retina of the eye. Leukocoria resembles eyeshine, but leukocoria can occur in humans and other animals that lack eyeshine because their retina lacks a tapetum lucidum.

Leukocoria is a medical sign for a number of conditions, including Coats disease, congenital cataracts, corneal scarring, melanoma of the ciliary body,[2] Norrie disease, ocular toxocariasis, persistence of the tunica vasculosa lentis (PFV/PHPV), retinoblastoma, and retrolental fibroplasia.

Because of the potential life threatening nature of retinoblastoma, a cancer, that condition is usually considered in the evaluation of leukocoria.

Diagnosis

File:Fundus retinoblastoma.jpg
A fundus with retinoblastoma

On photographs taken using a flash, instead of the familiar red-eye effect leukocoria can cause a bright white reflection in an affected eye.[3] Leukocoria may appear also in low indirect light, similar to eyeshine.

Leukocoria can be detected by a routine eye exam (see Ophthalmoscopy). For screening purposes, the red reflex test is used. In this test, when a light is shone briefly through the pupil, an orange red reflection is normal. A white reflection is leukocoria.

References

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External links

de:Leukokorie

es:Leucocoria hi:श्वेत प्रदर

pl:Leukokoria
  1. thefreedictionary.com
  2. Lua error in package.lua at line 80: module 'Module:Citation/CS1/Suggestions' not found.
  3. "The 'strange white light' that nearly killed baby Grace". Daily Mail. June 1, 2009.