Xerophthalmia
Dry eyes. Also, called conjunctivitis arida. Xerophthalmia can be associated with systemic diseases (such as Sjögren' s syndrome, systemic lupus erythematosus, rheumatoid arthritis, scleroderma, sarcoidosis, amyloidosis, hypothyroidism, and others) or deficiency of vitamin A. Xerophthalmia results from inadequate function of the lacrimal glands which supply water to produce tears. When xerophthalmia is due to vitamin A deficiency, the condition begins with night blindness and conjunctival xerosis (dryness of the eye membranes) and progresses to corneal xerosis (dryness of the cornea), and, in the late stages, to keratomalacia (softening of the cornea) . The word “xerophthalmia” is apt. It comes from the Greek “xeros” (dry) + “ophthalmos” (eye) = dry eye.
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Excessive dryness of the conjunctiva and cornea, which lose their luster and become keratinized; may be due to local disease or to a systemic deficiency of vitamin A. SYN: conjunctivitis arida, xeroma, xerophthalmus. [xero- + G. ophthalmos, eye]

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xe·roph·thal·mia .zir-.äf-'thal-mē-ə, -.äp-'thal- n a dry thickened lusterless condition of the eyeball resulting esp. from a severe systemic deficiency of vitamin A compare KERATOMALACIA
xe·roph·thal·mic -mik adj

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n.
a progressive nutritional disease of the eye due to deficiency of vitamin A. The cornea and conjunctiva become dry, thickened, and wrinkled. This may progress to keratomalacia and eventual blindness.

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xe·roph·thal·mia (zēr″of-thalґme-ə) [xero- + ophthalmia] dryness of the conjunctiva and cornea due to vitamin A deficiency. The condition begins with night blindness and conjunctival xerosis and progresses to corneal xerosis and, in the late stages, to keratomalacia.

Medical dictionary. 2011.

Look at other dictionaries:

  • Xerophthalmia — Classification and external resources ICD 10 E50.6 E50.7 ICD 9 …   Wikipedia

  • xerophthalmia — [zir΄äf thal′mē ə] n. [LL < Gr xērophthalmia: see XERO & OPHTHALMIA] a form of conjunctivitis characterized by a dry and lusterless condition of the eyeball and caused by a deficiency of vitamin A xerophthalmic adj …   English World dictionary

  • Xerophthalmia — Xe roph*thal mi*a, n. [L., fr. Gr. ?; ? dry + ? the eye. See {Ophthalmia}.] (Med.) An abnormal dryness of the eyeball produced usually by long continued inflammation and subsequent atrophy of the conjunctiva. [1913 Webster] …   The Collaborative International Dictionary of English

  • Xerophthalmia — Xerophthalmia, griech., trockene Augenentzündung …   Herders Conversations-Lexikon

  • xerophthalmia — noun Etymology: Late Latin, from Greek xērophthalmia, from xēr xer + ophthalmia ophthalmia Date: circa 1656 a dry thickened lusterless condition of the eyeball resulting especially from a severe systemic deficiency of vitamin A • xerophthalmic… …   New Collegiate Dictionary

  • xerophthalmia — xerophthalmic, adj. /zear of thal mee euh, op /, n. Ophthalm. abnormal dryness of the eyeball characterized by conjunctivitis, caused by a deficiency of tears and attributed to a lack of vitamin A. [1650 60; XER + OPHTHALMIA] * * * …   Universalium

  • xerophthalmia — noun A condition due to a deficiency of vitamin A where the conjunctiva and cornea become dry. The condition starts with conjunctival xerosis and night blindness and progresses to corneal xerosis and, later, a severe condition called… …   Wiktionary

  • xerophthalmia — n. type of eye disease causing dryness of the eye (Medicine, Ophthalmology) …   English contemporary dictionary

  • xerophthalmia — [ˌzɪərɒf θalmɪə, ˌzɛ ] noun Medicine abnormal dryness of the conjunctiva and cornea of the eye, typically associated with vitamin A deficiency …   English new terms dictionary

  • xerophthalmia — xe·roph·thal·mia …   English syllables

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