hyperopia

Also known as hypermetropia, far-sightedness

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. Minor hypermetropia in young patients is usually corrected by their accommodation, without any defects in vision. But, due to this accommodative effort for distant vision, people may complain of eye strain during prolonged reading. If the hypermetropia is high, there will be defective vision

AI overview

Hyperopia, commonly called far-sightedness, is a condition where your eyes focus light behind the retina instead of directly on it, making nearby objects appear blurred while distant ones stay clear. It matters because while mild cases may go unnoticed due to your eye's natural focusing ability, severe hyperopia causes blurred vision and eye strain during close-up activities like reading.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Medical condition (new).name: Hyperopia
Medical condition (new).synonyms: Hypermetropia, hyperopia, longsightedness, long-sightedness
Medical condition (new).image: Hypermetropia color.svg
Medical condition (new).caption: Far-sightedness without (top) and with lens correction (bottom)
Medical condition (new).field: Ophthalmology, optometry
Medical condition (new).symptoms: Near blur, Distance and near blur, Asthenopia
Medical condition (new).complications: Accommodative dysfunction, binocular dysfunction, amblyopia, strabismus
Medical condition (new).causes: Axial length of eyeball is too short, lens or cornea is flatter than normal, aphakia
Medical condition (new).risks: Ageing, hereditary
Medical condition (new).diagnosis: Eye exam
Medical condition (new).differential: Amblyopia, retrobulbar optic neuropathy, retinitis pigmentosa sine pigmento
Medical condition (new).treatment: Eyeglasses, contact lenses, refractive surgeries, IOL implantation
Medical condition (new).frequency: ~7.5% (US)

via Wikipedia infobox

Research

6,170 papers

[Refractive surgery for hyperopia].ReviewJournal francais d'ophtalmologie · 2021Delbarre M, Le HM, Boucenna W et al.DOI: 10.1016/j.jfo.2020.11.008
Hyperopia: a meta-analysis of prevalence and a review of associated factors among school-aged children.BMC ophthalmology · 2014Castagno VD, Fassa AG, Carret ML et al.DOI: 10.1186/1471-2415-14-163
[Research progress on influencing factors of hyperopia reserve in children].ReviewZhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi · 2022Zhao MY, Zhu Y, Xu SJ et al.DOI: 10.3760/cma.j.cn112338-20220420-00324
Phakic intraocular lens implantation for the correction of hyperopia.ReviewJournal of cataract and refractive surgery · 2019Alshamrani AA, Alharbi SSDOI: 10.1016/j.jcrs.2019.05.051
Infant hyperopia: detection, distribution, changes and correlates-outcomes from the cambridge infant screening programs.ReviewOptometry and vision science : official publication of the American Academy of Optometry · 2007Atkinson J, Braddick O, Nardini M et al.DOI: 10.1097/OPX.0b013e318031b69a
The epidemiology of early childhood hyperopia.ReviewOptometry and vision science : official publication of the American Academy of Optometry · 2007Tarczy-Hornoch KDOI: 10.1097/OPX.0b013e318031b674
Infant and child hyperopia.Optometry and vision science : official publication of the American Academy of Optometry · 2007Mutti DO, Candy R, Cotter SA et al.DOI: 10.1097/OPX.0b013e31803404bb
Future Developments in SMILE: Higher Degree of Myopia and Hyperopia.ReviewAsia-Pacific journal of ophthalmology (Philadelphia, Pa.) · 2019Wang Y, Ma JDOI: 10.1097/01.APO.0000580128.27272.bb

via PubMed

Wikidata facts

Image: Hypermetropia.svg

Show 4 more facts

ICPC 2 ID: F51
Commons category: Hyperopia
exact match: purl.obolibrary.org/obo/HP_0000540
ICD-9-CM: 367.0

Sources (6)

via Wikidata · CC0

~10 min read

Article

14 sections

Contents

Signs and symptoms
Complications
Causes
Diagnosis
Classification
Clinical classification
Classification according to severity
Components of hypermetropia
Treatment
Corrective lenses
Surgery
Etymology
References
External links

There are many causes for this condition. It may occur when the axial length of eyeball is too short or if the lens or cornea is flatter than normal. Changes in refractive index of lens, alterations in position of the lens or absence of lens are the other main causes. Risk factors include a family history of the condition, diabetes, certain medications, and tumors around the eye. It is a type of refractive error. Diagnosis is based on an eye exam.