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Leucocoria, [ 1] white pupillary reflex. A child with leukocoria due to retinoblastoma in the left eye. Specialty. Ophthalmology, pediatrics. Leukocoria (also white pupillary reflex) is an abnormal white reflection from the retina of the eye. Leukocoria resembles eyeshine, but leukocoria can also occur in animals that lack eyeshine because ...
Waardenburg syndrome is a group of rare genetic conditions characterised by at least some degree of congenital hearing loss and pigmentation deficiencies, which can include bright blue eyes (or one blue eye and one brown eye ), a white forelock or patches of light skin. These basic features constitute type 2 of the condition; in type 1, there ...
Retinoblastoma (Rb) is a rare form of cancer that rapidly develops from the immature cells of a retina, [ 2] the light-detecting tissue of the eye. [ 3] It is the most common primary malignant intraocular cancer in children, especially those under 3 years old. [ 4][ 5] Though most children in high income countries survive this cancer, [ 2] they ...
Specialty. Ophthalmology. Coats' disease is a rare congenital, nonhereditary eye disorder, causing full or partial blindness, characterized by abnormal development of blood vessels behind the retina. Coats' disease can also fall under glaucoma. It can have a similar presentation to that of retinoblastoma.
Eye color. Eye color is a polygenic phenotypic trait determined by two factors: the pigmentation of the eye 's iris [ 1][ 2] and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris. [ 3]: 9. In humans, the pigmentation of the iris varies from light brown to black, depending on the concentration of ...
The sclera, [ note 1] also known as the white of the eye or, in older literature, as the tunica albuginea oculi, is the opaque, fibrous, protective outer layer of the eye containing mainly collagen and some crucial elastic fiber. [ 2] In the development of the embryo, the sclera is derived from the neural crest. [ 3]
Herman Lehmann was born near Mason, Texas, on June 5, 1859, to German immigrants Ernst Moritz Lehmann and Augusta Johanna Adams Lehmann.He was a third child, following a brother Gustave Adolph, born in 1855, and a sister Wilhelmina, born in 1857.
Shaw is an advocate for parent-based, photographic screening of pediatric eye diseases that present with "white-eye". [10] [11] The software has been credited with initiating multiple early diagnoses of retinoblastoma, Coats’ disease, and myelin retinal nerve fiber layer.