| 释义 |
keratomalacia
Thesaurus| Noun | 1. | keratomalacia - softening and drying and ulceration of the cornea resulting from vitamin A deficiency; symptom of cystic fibrosis or spruesymptom - (medicine) any sensation or change in bodily function that is experienced by a patient and is associated with a particular disease |
Translationskeratomalacia
keratomalacia[‚ker·əd·ō·mə′lā·shə] (medicine) Degeneration of the cornea characterized by infiltration and keratinization of the epithelium, eventually leading to thinning and perforation of the cornea; generally occurs in vitamin A deficiency. keratomalacia
keratomalacia [ker″ah-to-mah-la´she-ah] softening and necrosis of the cornea associated with vitamin A deficiency.ker·a·to·ma·la·ci·a (ker'ă-tō-mă-lā'shē-ă), Dryness with ulceration and perforation of the cornea, with absence of inflammatory reactions, occurring in cachectic children; results from severe vitamin A deficiency. Synonym(s): xerotic keratitis [kerato- + G. malakia, softness] ker·a·to·ma·la·ci·a (ker'ă-tō-mă-lā'shē-ă) Dryness with ulceration and perforation of the cornea occurring in cachectic children; results from severe vitamin A deficiency. [kerato- + G. malakia, softness]keratomalacia Softening or ‘melting’ of the cornea usually in severely malnourished children whose body stocks of vitamin A have become exhausted. Corneal melt leads to internal infection and irremediable blindness and this is the fate of millions of children every year in economically depressed parts of the world. A small regular dose of vitamin A, as from a few fleshy green leaves, will prevent this.KeratomalaciaKeratomalacia is ulceration of the cornea.Mentioned in: Vitamin A DeficiencykeratomalaciaVitamin A deficiency in which the cornea becomes desiccated at first and then softens, at which stage it is associated with infiltration, pannus, necrosis, opacification and the eye becomes blind. There is also a lack of reaction to inflammation leading to a destruction of the eye if infection occurs. It is part of a general systemic condition due to malnutrition. Associated with this condition are night blindness, faulty growth of bone, xerophthalmia, etc. See hemeralopia.keratomalacia
Related to keratomalacia: xerophthalmia, Bitot's spots, follicular hyperkeratosisWords related to keratomalacianoun softening and drying and ulceration of the cornea resulting from vitamin A deficiencyRelated Words |