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hypermetropia    
n. 远视

远视

hypermetropia
n 1: abnormal condition in which vision for distant objects is
better than for near objects [synonym: {hyperopia},
{hypermetropia}, {hypermetropy}, {farsightedness},
{longsightedness}] [ant: {myopia}, {nearsightedness},
{shortsightedness}]

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 behind the retina, making vision for
distant objects better than for near objects; farsightedness;
-- called also {hypermetropia}. Cf. {Emmetropia}. --
{Hy`per*op"tic}, a.

Syn: hypermetropia, farsightedness, longsightedness.
[1913 Webster]


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 rays of
light come to a focus behind the retina, making vision for
distant objects better than for near objects; farsightedness;
-- now most commonly called {hyperopia}. Cf. {Emmetropia}.
[Obsolescent]

Syn: hyperopia, farsightedness, longsightedness.
[1913 Webster]

Note: In hypermetropia, vision for distant objects, although
not better absolutely, is better than that for near
objects, and hence, the individual is said to be
farsighted. It is corrected by the use of convex
glasses. -- {Hy`per*me*trop"ic}, a.
[1913 Webster]


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  • Hypermetropia (Long-Sightedness): Symptoms, and Treatment - Patient
    What is hypermetropia? Hypermetropia (long-sightedness) is a refractive error and occurs when light from near objects is not quite brought to focus in time to hit the retina The point of focus would in fact fall behind the retina, if the light could get that far
  • Farsightedness - Symptoms and causes - Mayo Clinic
    Farsightedness (hyperopia) is a common vision condition in which you can see distant objects clearly, but objects nearby may be blurry The degree of your farsightedness influences your focusing ability
  • Hypermetropia : Facts, onset, types, diagnosis, treatment | FactDr
    Hypermetropia (also called hyperopia) is the condition of long-sightedness; a person is clearly able to see distant things but objects nearby appear blurred It is a case of structural defect in the eye, where the eye lenses are elongated and thus not able to focus the image on the retina
  • Farsightedness - Wikipedia
    Far-sightedness, also known as long-sightedness, hypermetropia, and hyperopia, is a condition of the eye where distant objects are seen clearly but near objects appear blurred This blur is due to incoming light being focused behind, instead of on, the retina due to insufficient accommodation by the lens [6]
  • What is Hypermetropia (Long-sightedness)? Causes, Symptoms and . . .
    Hypermetropia, also known as long-sightedness, is a refractive error where distant objects appear clearer than close objects It occurs when the eyeball is too short or the cornea is too flat This refractive error can be caused by genetic factors or age-related changes in the lens
  • Farsightedness: What Is Hyperopia? - American Academy of Ophthalmology
    Farsightedness is an eye focusing disorder, not an eye disease What Causes Farsightedness? To see clearly, light rays must travel through the front of the eye (the cornea and lens) The cornea and lens work together to bend the light so it lands on the back layer of the eye, called the retina
  • Understanding High Hypermetropia: Causes and Treatments
    High hypermetropia is a severe form of hypermetropia where the refractive error is greater than +5 00 diopters What are the symptoms of high hypermetropia? Symptoms of high hypermetropia include blurry vision, eye strain, headaches, and difficulty focusing on nearby objects
  • Hypermetropia (Long-Sightedness): Causes and Treatment - OCL Vision
    Understanding hypermetropia (long-sightedness): symptoms, causes and treatments Hypermetropia occurs when the power of the eye is insufficient or the eye is too short, causing light rays to focus behind the retina rather than directly on it
  • Hypermetropia | What is it, Causes and Treatment - Plano
    Hypermetropia occurs when the length of the eyeball is too short or the cornea (transparent layer at the front of the eye) is not curved enough to cause light to focus on the retina
  • Farsightedness (Hyperopia) - National Eye Institute
    Farsightedness — or hyperopia — is an eye condition that makes nearby objects look blurry Read about what causes farsightedness and how it can be diagnosed and treated





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