hypermetropia


hypermetropia
SYN: hyperopia. [hyper- + G. metron, measure, + ops, eye]
- index h. h. arising from decreased refractivity of the lens.

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hy·per·me·tro·pia .hī-pər-mi-'trō-pē-ə n HYPEROPIA
hy·per·me·tro·pic -'trō-pik, -'träp-ik adj

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n.
the condition in which parallel light rays are brought to a focus behind the retina when the accommodation is relaxed. Moderate degrees of hypermetropia may not cause blurred vision in children and young adults because of their ability to accommodate, but for older people and those with greater degrees of hypermetropia near vision is more blurred than distance vision. Normal vision can be restored by wearing spectacles with convex lenses. Compare emmetropia, myopia.

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hy·per·me·tro·pia (hi″pər-me-troґpe-ə) hyperopia.

Medical dictionary. 2011.

Look at other dictionaries:

  • Hypermetropia — Hy per*me*tro pi*a, Hypermetropy Hy per*met ro*py, n. [NL. hypermetropia, fr. Gr. ? excessive + ?, ?, the eye. See {Hypermeter}.] An abnormal condition of the eye in which, through shortness of the eyeball or fault of the refractive media, the… …   The Collaborative International Dictionary of English

  • hypermetropia — [hī΄pərmi trō′pē ə] n. 〚ModL < Gr hypermetros, beyond measure (see HYPER & METRIC) + OPIA〛 HYPEROPIA hypermetropic [h …   Universalium

  • hypermetropia — [hī΄pərmi trō′pē ə] n. [ModL < Gr hypermetros, beyond measure (see HYPER & METRIC) + OPIA] HYPEROPIA hypermetropic [hī΄pər miträp′ik, hī΄pər məträp′ik] adj …   English World dictionary

  • hypermetropia — Hyperopia Hy per*o pi*a (h[imac] p[ e]r*[=o] p[i^]*[.a]), n. [NL., fr. Gr. ype r over + w ps, wpo s, the eye.] An abnormal condition of the eye in which, through shortness of the eyeball or fault of the refractive media, the rays of light come to …   The Collaborative International Dictionary of English

  • hypermetropia — long sightedness; n. the condition in which parallel light rays are brought to a focus behind the retina when the accommodation is relaxed . Moderate degrees of hypermetropia may not cause blurred vision in children and young adults because of… …   The new mediacal dictionary

  • hypermetropia — noun Etymology: New Latin, from Greek hypermetros + New Latin opia Date: 1868 hyperopia • hypermetropic adjective …   New Collegiate Dictionary

  • hypermetropia — noun hyperopia …   Wiktionary

  • hypermetropia — hy·per·me·tro·pi·a || ‚haɪpÉ™(r)mɪ trəʊpɪə n. far sightedness, ability to see distant objects more clearly than near ones (abnormal condition of the eyes) …   English contemporary dictionary

  • hypermetropia — [ˌhʌɪpəmɪ trəʊpɪə] noun Medicine long sightedness. Derivatives hypermetropic adjective Origin C19: from Gk hupermetros beyond measure + ōps eye …   English new terms dictionary

  • hypermetropia — hy·per·me·tro·pia …   English syllables