April 1981
Volume 20, Issue 4
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Articles  |   April 1981
The eyes of young chickens grow toward emmetropia.
Investigative Ophthalmology & Visual Science April 1981, Vol.20, 557-561. doi:
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      J Wallman, J I Adams, J N Trachtman; The eyes of young chickens grow toward emmetropia.. Invest. Ophthalmol. Vis. Sci. 1981;20(4):557-561.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

The distribution of refractive errors was followed in chicks from hatching to 8 weeks of age. A dramatic progressive decrease in the variability of refractions was observed over this period. In addition, there appeared to be a parallel decline in hyperopia, even when the artifactual hyperopia of retinoscopy was taken into account. These results are evidence for a postnatal development regulatory mechanisms, most likely dependent on vision, which directs growth of the eye toward emmetropia.

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