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EMMETROPIC - 2 reference results
Emmetropia
Emmetropia (from the Greek emmetros, well-proportioned, fitting) describes the state of vision where an object at infinity is in sharp focus with the eye lens in a neutral or relaxed state. This condition of the normal eye focuses rays exactly on the retina resulting in perfect vision. An eye in a state of emmetropia requires no correction.

Emmetropia is a state in which the eye is relaxed and focused on an object more than 6 meters or 20 feet away. The light rays coming from that object are essentially parallel, and the rays are focused on the retina without effort (an emmetropic eye does not need corrective lenses). If the gaze shifts to something closer, light rays from the source are too divergent to be focused without effort. In other words, the eye is automatically focused on things in the distance unless you make an effort to focus elsewhere. For a wild animal or our prehistorical ancestors, this arrangement would be adaptive because it allows for alertness to predators or prey at a distance.

References

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Last updated on Wednesday June 18, 2008 at 07:42:26 PDT (GMT -0700)
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Computed tomographic method of axial length measurement of emmetropic Indian eye a new technique.(Original Article)
Jan 01, 1987; Byline: Madhumati. Misra, Santan. Rath This is a study of 50 orbital CT Scans in emmetropic adults in 'the neuro ocular plane. A...
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Data from Queensland University of Technology advance knowledge in ophthalmology.
Feb 09, 2009; According to a study from Australia, Based on recent biometric data, four-surface paraxial schematic emmetropic eyes for...
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Research from University of Ankara, Department of Ophthalmology has provided new information about myopia.
Dec 17, 2008; New investigation results, 'Corneal elevation and thickness in relation to the refractive status measured with the Pentacam...
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FDA panel recommends approval of CK System for near vision improvement.
Mar 08, 2004; 2004 MAR 8 - (NewsRx.com & NewsRx.net) -- Ophthalmic device manufacturer Refractec, Inc., announced that the U.S. Food and Drug...
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Low vision aids developed by intermediate technology and its specific role in the management of macular diseases.(Articles)
May 01, 1983; Byline: Vijay. Dada, Swadeshi. Acharjee Introduction Healthy macula is essential for the acuity of vision. In an emmetropic eye...
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