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The Use of the Bio-Photometer in Determining the Dark Adaptation of Pre-School Age Children

The degree to which the normal eye can adapt to the dark is related to or dependent upon the eye's ability to regenerate visual purple. The relationship of vitamin A to the visual cycle has caused much development in improved methods of detecting vitamin A deficiency. For the most part these methods have been applied to adults and school age children. This study seeks to analyze this method as applied to pre-school age children.

Identiferoai:union.ndltd.org:unt.edu/info:ark/67531/metadc798280
Date08 1900
CreatorsWright, Mary Lou McCauley
ContributorsScoular, Florence I., Odom, Edwin Dale, 1929-
PublisherNorth Texas State Teachers College
Source SetsUniversity of North Texas
LanguageEnglish
Detected LanguageEnglish
TypeThesis or Dissertation
FormatText
RightsPublic, Copyright, Copyright is held by the author, unless otherwise noted. All rights

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