THE EYES OF YOUNG CHICKENS GROW TOWARD EMMETROPIA

  • 1 January 1981
    • journal article
    • research article
    • Vol. 20  (4) , 557-561
Abstract
The distribution of refractive errors was followed in chicks from hatching to 8 wk of age. A dramatic progressive decrease in the variability of refractions was observed over this period. 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 mechanism, most likely dependent on vision, which directs growth of the eye toward emmetropia.

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