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 (impaired vision in one eye). With a major degree of anisometropia, the brain cannot able to reconcile the difference in images coming from the two eyes. It develops a preference for the image coming from one eye and suppresses the image from the other eye and, in time, the brain loses the ability to "see" the image from that eye. Anisometropia is made up of four parts: an-, -iso-, -metr-, and -opia. All four parts are from the Greek and their meaning (in parentheses) is simple. An- (not) + -iso- (equal) + -metr- (measure) + -opia (vision). Literally, the measure of vision is not equal. The refractive power of the two eyes is different. The opposite of anisotropia is isometropia. In isometropia, the refractive power is equal in both eyes.
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A difference in the refractive power of the two eyes. [aniso- + G. metron, measure, + ops, sight]

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an·iso·me·tro·pia .an-.ī-sə-mə-'trō-pē-ə n unequal refractive power in the two eyes
an·iso·me·tro·pic -'träp-ik, -'trō-pik adj

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n.
the condition in which the power of refraction in one eye differs from that in the other.

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an·iso·me·tro·pia (an-i″so-mə-troґpe-ə) [an- + Gr. isometros of equal measure + -opia] an error of refraction in which a person's two eyes have different refractive powers. anisometropic adj

Medical dictionary. 2011.

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 — 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… …   Wikipedia

  • 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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