emmetropia


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emmetropia

em·me·tro·pi·a

 (ĕm′ĭ-trō′pē-ə)
n.
The condition of the normal eye when parallel rays of light are focused exactly on the retina and vision is perfect.

[Greek emmetros, well-proportioned, fitting (en, in; see en-2 + metron, measure; see meter2) + -opia.]

em′me·trop′ic (-trŏp′ĭk, -trō′pĭk) adj.

emmetropia

(ˌɛmɪˈtrəʊpɪə)
n
(Physiology) the normal condition of perfect vision, in which parallel light rays are focused on the retina without the need for accommodation
[C19: from New Latin, from Greek emmetros in due measure + -opia]
emmetropic adj

em•me•tro•pi•a

(ˌɛm ɪˈtroʊ pi ə)

n.
the normal refractive condition of the eye in which the rays of light are accurately focused on the retina.
[1860–65; < Greek émmetr(os) in measure, fitting]
em′me•trope`, n.
em`me•trop′ic (-ˈtrɒp ɪk, -ˈtroʊ pɪk) adj.

emmetropia, emmetropy

the normal refractive function of the eye in which light is focused exactly on the retina with the eye relaxed. — emmetropic, adj.
See also: Eyes
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.emmetropia - (ophthalmology) the normal refractive condition of the eye in which there is clear focus of light on the retina
ophthalmology - the branch of medicine concerned with the eye and its diseases
physical condition, physiological condition, physiological state - the condition or state of the body or bodily functions
References in periodicals archive ?
Emmetropia is believed to be maintained when the AL increases are compensated by changes in crystalline lens power.
Aiming for emmetropia after cataract surgery: Swedish National Cataract Register study.
Today, cataract surgery is regarded as a refractive surgery, promises rapid visual rehabilitation and pseudophakic emmetropia, which makes eliminating corneal astigmatism critical.
3] Emmetropia or normal refractive status is achieved when light rays are focused on the retina directly.
Emmetropia and orthophoria of both eyes are mandatory for the foundation of Binocular Single Vision (BSV).
Fourteen eyes from seven clinically normal cats were examined for intraocular distances (using A-scan ultrasound biometry) and corneal curvature (using keratometry) and by using these data appropriate posterior chamber IOL strength to achieve emmetropia after lens removal has been predicted.
The collaboration with the Emmetropia Mediterranean Eye Institute, in Crete, came about after a consultant ophthalmologist based in South Wales recognised the perfect platform that existed at the Cardiff centre to support the research being conducted by Dr Ioannis Aslanides.
The collaboration between Tomorrow's Generation and the Emmetropia Mediterranean Eye Institute, in Crete, came about after Vinod Kumar, a consultant ophthalmologist based in South Wales, recognised the perfect platform that existed at the Cardiff centre to support the research being conducted by Dr Ioannis Aslanides.
Clinical study on higher-order aberrations of anterior cornea in eyes with emmetropia and myopia of adults.
This pseudomyopia was diagnosed if the patient reported blur at distance that could be corrected with minus lenses when the patient had no previous history of such a prescription and, furthermore, if a cycloplegic refraction elicited either emmetropia, low hyperopia, or significantly less myopia [12].