Medical Evaluation of Nutritional Status: VI. Dark Adaptation of High School Children at Different Income Levels

1 July 1941

journal article
research article
Published by JSTOR in The Milbank Memorial Fund Quarterly

Vol. 19 (3) , 252-281
https://doi.org/10.2307/3347634

Abstract

Visual threshold measurements by a Hecht adaptometer showed a mean after 20 mins. of 2.765 [plus or minus] .516 log units for 131 children of a low income group and 2.540 [plus or minus] .330 log units for 136 children in the high income group.

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