Hyperopia

Hyperopia
Farsightedness; the ability to see distant objects more clearly than close objects. Hyperopia may be corrected with glasses or contact lenses.
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Longsightedness; that optical condition in which only convergent rays can be brought to focus on the retina. SYN: far sight, farsightedness, hypermetropia, long sight. [hyper- + G. ops, eye]
- absolute h. manifest h. that cannot be overcome by an effort of accommodation.
- axial h. h. due to shortening of the anteroposterior diameter of the globe of the eye.
- curvature h. h. due to decreased refraction of the anterior ocular segment.
- facultative h. SYN: manifest h..
- latent h. the difference between total and manifest h..
- manifest h. h. that can be compensated by accommodation. SYN: facultative h..
- total h. (Ht) that which can be determined after complete paralysis of accommodation by means of a cycloplegic.

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hy·per·opia .hī-pə-'rō-pē-ə n a condition in which visual images come to a focus behind the retina of the eye and vision is better for distant than for near objects called also farsightedness, hypermetropia
hy·per·opic -'rō-pik, -'räp-ik adj

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n.
the usual US term for hypermetropia.

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hy·per·opia (hi″pər-oґpe-ə) [hyper- + -opia] an error of refraction in which rays of light entering the eye parallel to the optic axis are brought to a focus behind the retina, as a result of the eyeball being too short from front to back. Symbol H. Called also farsightedness (because the near point is more distant than it is in emmetropia with an equal amplitude of accommodation) and hypermetropia. hyperopic adj

Hyperopia.


Medical dictionary. 2011.

Look at other dictionaries:

  • 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 a focus… …   The Collaborative International Dictionary of English

  • hyperopia — 1884, Mod.L., from HYPER (Cf. hyper ) + Gk. ops eye (see EYE (Cf. eye)) …   Etymology dictionary

  • hyperopia — [hī΄pər ō′pē ə] n. [ HYPER + OPIA] abnormal vision in which the rays of light are focused behind the retina, so that distant objects are seen more clearly than near ones; farsightedness hyperopic [hī΄pəräp′ik] adj …   English World dictionary

  • Hyperopia — Hypermetropia Classification and external resources ICD 10 H52.0 ICD 9 367.0 Hyperopia, also known as farsig …   Wikipedia

  • hyperopia — hyperopic /huy peuhr op ik, oh pik/, adj. /huy peuhr oh pee euh/, n. Ophthalm. a condition of the eye in which parallel rays are focused behind the retina, distant objects being seen more distinctly than near ones; farsightedness (opposed to… …   Universalium

  • hyperopia — 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 …   The Collaborative International Dictionary of English

  • hyperopia — Ametropia Am e*tro pi*a, n. [Gr. ? irregular + ?, ?, eye.] (Med.) a visual impairment resulting from faulty refraction of light rays in the eye. Subtypes include {myopia} {astigmatism} and {hyperopia}. {Am e*trop ic}, a. [1913 Webster +PJC] …   The Collaborative International Dictionary of English

  • hyperopia — noun Etymology: New Latin Date: 1884 a condition in which visual images come to a focus behind the retina of the eye and vision is better for distant than for near objects called also farsightedness • hyperopic adjective …   New Collegiate Dictionary

  • hyperopia — noun A disorder of the vision where the eye focusses images behind the retina instead of on it, so that distant objects can be seen better than near objects. Syn: farsightedness, hypermetropia, hypermetropy …   Wiktionary

  • hyperopia — n. far sightedness, ability to see distant objects more clearly than near ones …   English contemporary dictionary

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