Anisometropia

Anisometropia

DiseaseDisorder infobox
Name = Anisometropia
ICD10 = ICD10|H|52|3|h|49
ICD9 = ICD9|367.31

Anisometropia is the condition in which the two eyes have unequal refractive power; that is, are in different states of myopia (nearsightedness), hyperopia (farsightedness) or in the extreme, antimetropia (wherein one eye is myopic and the other is hyperopic), the unequal refractive states cause unequal rotations thus leading to diplopia and asthenopia.

Anisometropia can adversely affect the development of binocular vision in infants and children if there is a large difference in clarity between the two eyes. The brain will often suppress the vision of the blurrier eye in a condition called amblyopia, or lazy eye.

The name is from four Greek components: "an-" "not," "iso-" "same," "metr-" "measure," "ops" "eye."

One study estimated that 6% of those between the ages of 6 and 18 have anisometropia. [Czepita D, Goslawski W, Mojsa A. " [Occurrence of anisometropia among students ranging from 6 to 18 years of age.] " "Klin Oczna." 2005;107(4-6):297-9. Polish. PMID 16118943.]

Spectacle correction

For those with large degrees of anisometropia, spectacle correction may cause the person to experience a difference in image magnification between the two eyes which could also prevent the development of good binocular vision.

References


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Look at other dictionaries:

  • anisometropía — f. oftalm. Diferencias en el poder de refracción de ambos ojos. Medical Dictionary. 2011. anisometropía desigualdad en el …   Diccionario médico

  • Anisometropia — An i*so*me*tro pi*a, n. [NL., fr. Gr. ? + ? measure + ?, ?, eye.] Unequal refractive power in the two eyes. [Webster 1913 Suppl.] …   The Collaborative International Dictionary of English

  • anisometropia — [an ī΄sō mə trō′pē ə] n. 〚 ANISO + METR(O) + OPIA〛 a condition of the eyes in which they have unequal refractive power anisometropic [an ī΄sōträp′ik] adj. * * * an·i·so·me·tro·pi·a (ăn ī sə mĭ trōʹpē ə) n …   Universalium

  • anisometropia — [an ī΄sō mə trō′pē ə] n. [ ANISO + METR(O) + OPIA] a condition of the eyes in which they have unequal refractive power anisometropic [an ī΄sōträp′ik] adj …   English World dictionary

  • Anisometropia — The condition in which the two eyes have an unequal refractive power. One eye may be myopic (nearsighted) and the other hyperopic (farsighted). Anisometropia is a serious concern in newborns and young children because it can lead to amblyopia… …   Medical dictionary

  • anisometropía — Eng. Anisometropia Desigualdad notable en el poder refractivo de ambos ojos. Heteroscopia. Antimetropía. Heterometropía. Asimetropía. Heteropsia …   Diccionario de oftalmología

  • anisometropia — noun Etymology: New Latin, from Greek anisometros of unequal measure (from anis + metron measure) + New Latin opia more at measure Date: circa 1880 unequal refractive power in the two eyes • anisometropic adjective …   New Collegiate Dictionary

  • anisometropia — noun A condition in which the two eyes of an individual have different refractive power …   Wiktionary

  • anisometropía — ► femenino PATOLOGÍA Desigualdad del poder de refracción de ambos ojos …   Enciclopedia Universal

  • anisometropia — n. defect causing one eye to refract light differently than the other …   English contemporary dictionary

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