<unk>  (also white pupillary reflex) is an abnormal white reflection from the retina of the eye.<unk>  resembles eyeshine, but<unk>  can also occur in animals that lack eyeshine because their retina lacks a tapetum lucidum.<unk>  is a medical sign for a number of conditions, including Coats disease, congenital cataract, corneal scarring, melanoma of the ciliary body, Norrie disease, ocular toxocariasis, persistence of the tunica vasculosa lentis (PFV/PHPV), retinoblastoma, and retrolental fibroplasia. Because of the potentially life-threatening nature of retinoblastoma, a cancer, that condition is usually considered in the evaluation of<unk> . In some rare cases (1%) the<unk>  is caused by Coats' disease (leaking retinal vessels).
Leukocoria
Sclerocornea
Periorbital hyperpigmentation
Mydriasis
Ocular tremor
Oscillopsia
Carotidynia
Pityriasis