hyperopia

[hi″per-o´pe-ah]

a defect of vision in which parallel light rays reaching the eye come to focus behind the retina, vision being better for distant objects than for near. Called also farsightedness.

Most children are born with some degree of farsightedness. As the child grows this decreases and usually disappears by the age of 8 years. If the child is excessively farsighted, however, the constant effort to focus may cause headaches and fatigue. Eyeglasses used to correct hyperopia are convex; that is, they bend the light rays toward the center, helping the lens of the eye to focus them on the retina.

Refraction and correction in hyperopia. From Ignatavicius and Workman, 2002.

hy·per·o·pi·a (H),

(hī'pĕr-ō'pē-ă),

Longsightedness; that optic condition in which only convergent rays can be brought to focus on the retina.

Synonym(s): far sight, farsightedness, hypermetropia, long sight

[hyper- + G. ōps, eye]

Farlex Partner Medical Dictionary © Farlex 2012

farsightedness

(fär′sī′tĭd-nĭs)

See hyperopia.

farsightedness

Hyperopia, see there.

hy·per·o·pi·a

(H) (hī'pĕr-ō'pē-ă)

An ocular condition in which only convergent rays can be brought to focus on the retina.
Synonym(s): farsightedness, hypermetropia.

[hyper- + G. ōps, eye]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

hy·per·o·pi·a

(H) (hī'pĕr-ō'pē-ă)

An ocular condition in which only convergent rays can be brought to focus on the retina.
Synonym(s): farsightedness, hypermetropia.

[hyper- + G. ōps, eye]

Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about farsightedness

Q. Is there a laser vision correction operation that will correct both near and farsightedness? My optometrist said that typical laservision would require that I wear glasses for reading since it only corrects farsightedness. I'm leery of the technique of doing only one eye for distance and leaving the other "as is" for reading. I seem to recall a brief news report of some new laser vision technique that corrects both near- and farsightedness. Is that true or were they referring to the "one eye for closeup and one eye for distance" type of correction that I'm skeptical about? Thanks!!

A. my mother-in-law had that done about a yeara ago,for both near and far,they make them the oppisite,i had my near sightness fixed two years ago and i love it should of done it sooner.....

More discussions about farsightedness

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References in periodicals archive

* Astigmatism often combined with nearsightedness or farsightedness, occurs when the clear cornea has a non-round curvature - more like a teaspoon.

EYE HEALTH An Overview

"Afghanistan can find solutions to its problems, but those seeking to help it need great wisdom, courage, and farsightedness. This is the ultimate challenge that Afghanistan poses for the next US president," said William Maley, professor and director of the Asia-Pacific College of Diplomacy at the Australian National University.

Afghan imbroglio needs great wisdom, courage

You cannot compensate for your eyes' astigmatism when using binoculars or a telescope by merely refocusing the instrument, though this trick can negate mere near-or farsightedness. (The eye shown above suffers from both astigmatism and myopia.)

Eyeball optics

Today, RK has been replaced almost entirely by Lasik, which is used in about 95% of the surgical procedures to correct nearsightedness, farsightedness and astigmatism.

Deducting the cost of laser eye surgery

In one famous rumination on the tube, "Television: Set and Screen" (1996), Samuel Weber reminds us that the word television, literally rendered, means "seeing at a distance" or, better, "farsightedness." And while the "Perpetual Photos" were his only works based on TV per se, such a concept neatly describes nearly all of McCollum's methods, which hover deliciously between sharp institutional critique and melancholy visual poetics.

Allan McCollum: Friedrich Petzel Gallery

Some doctors question how the lens will affect younger eyes as patients age, and Shoemaker acknowledges, "Someone in their 40s with low to moderate near or farsightedness would be better off with LASIK."

Auto focus: the new Crystalens implantable helps cataract patients see the light--and so much more

A relatively new form of refractive surgery called conductive keratoplasty (CK), already approved to treat farsightedness, is being used to treat presbyopia, even though it isn't yet specifically approved by the U.S.

Women & eye health at midlife

Anamed, Inc., Lake Forest, CA, announced the US Food and Drug Administration (FDA) has allowed the Phase II expansion of the clinical trial with its PermaVision intracorneal lens for the correction of hyperopia (farsightedness) up to +i6 diopters.

FDA to allow Anamed to expand Phase II study of its PermaVision Intracorneal lens

Though flawed, Jones embodied much of what it meant to be an American, leading presidents and admirals to praise him profusely for strategic farsightedness and prevailing over modest circumstances.

Navy blues

Laser surgery is for people who have standard vision problems, like nearsightedness or farsightedness, says Dr.

The grind. (GL Body: Q&A)

To have booked him up now, when he still has the less cluttered diary of the leader of the Church in Wales, rather than once the appointment had been made, shows an admirable degree of farsightedness on the part of Mr John and the diary salutes him for it.

London Diary: Divine inspiration