| 释义 |
setting sun sign set·ting sun signretraction of the upper lid without upgaze so that the iris seems to "set" below the lower lid; suggestive of neurologic damage in the newborn, but usually clears up without sequelae. See: Collier sign, Epstein sign. Inferior ocular deviation, typical of severe infantile hydrocephaly, less often associated with subdural haematomas. It is often accompanied by the ‘cracked-pot’ sign, prominent scalp veins, thinned and shiny skin, a high-pitched cry, and optic nerve atrophy, due to optic nerve and chiasm compressionsetting sun sign Pediatrics Inferior ocular deviation, typical of severe infantile hydrocephalus–occasionally seen in subdural hematomas; it is often accompanied by the 'cracked-pot' sign, prominant scalp veins, thinned and shiny skin, a high-pitched cry, and optic nerve atrophy, due to nerve and chiasm compression. See Hydrocephalus. set·ting sun sign (set'ing sŭn sīn) Retraction of the upper lid without upgaze so that the iris seems to "set" below the lower lid, thus resembling the sun dropping below the horizon; suggestive of neurologic damage in the newborn, but usually clears up without sequelae.
Synonym(s): sunset eyes. setting sun sign Persistent downward deviation of the eyes without a corresponding lowering of the upper lids, so that the corneas appear to descend behind the edge of the lower lids. This is a sign of raised pressure within the skull as occurs in infants with HYDROCEPHALUS. |