The Tohoku Journal of Experimental Medicine
Online ISSN : 1349-3329
Print ISSN : 0040-8727
ISSN-L : 0040-8727
The Effect of Nicotinic Acid Amide on Dark Adaptation
A Preliminary Report
Y. Hosoya, H. S. Fang, M. T. Peng
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1950 Volume 53 Issue 1-2 Pages 103-108

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Abstract

In this study we have found that the oral administration of NAA produced an improvement in rod dark adaptation. The duration of the effect and the minimal effective dose varied in different individuals. Although vitamin C has a similar effect, yet this was only slight and transient. The combined effect of NAA and vitamin C on rod adaptation was stronger and more prolonged than either singly.

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