emmetropia

[ em-i-troh-pee-uh ]

noun

, Ophthalmology.

1. the normal refractive condition of the eye, in which the rays of light are accurately focused on the retina.

emmetropia

/ ˌɛmɪˈtrɒpɪk; ˌɛmɪˈtrəʊpɪə /

noun

1. the normal condition of perfect vision, in which parallel light rays are focused on the retina without the need for accommodation

Derived Forms

• emmetropic, adjective

Other Words From

• emme·trope noun
• em·me·trop·ic [em-i-, trop, -ik, -, troh, -pik], adjective

Word History and Origins

Origin of emmetropia¹

1860–65; < New Latin, equivalent to emmetr- (stem of Greek émmetros in measure, equivalent to em- em- ² + métr ( on ) measure + -os adj. suffix) + -opia -opia

Word History and Origins

Origin of emmetropia¹

C19: from New Latin, from Greek emmetros in due measure + -opia

Example Sentences

In proportion as myopia is gradually developed in originally existing emmetropia, myopes learn to converge to the neighbourhood of their far point without allowing their accommodation to come into action.

From Project Gutenberg

On looking to the left homonymous diplopia is present, on looking to the front and the right binocular single vision and no squint; on both sides emmetropia and full acuity of vision.

From Project Gutenberg

Among them 3 with double hypermetropia, 2 with emmetropia in one, and hypermetropia in the other eye.

From Project Gutenberg

Determination of refraction of the better eye is given in 6 cases, and showed twice emmetropia, twice slight myopia, twice hypermetropia.

From Project Gutenberg

On May 1, 1879, emmetropia was observed in right eye, V. 5/12 to 5/9.

From Project Gutenberg