Stocky Dr. Henry Cadan of Brooklyn said last week that in many cases he could do a lot about color blindness. The Air Forces and the Navy do not want colorblind men, weed them out with color cards composed of varicolored dot patterns. Those who flunk color tests and go to doctors get various kinds of handling: some doctors give no treatment at all ("color blindness is not curable"); others try everything but the kitchen sink. At the Optometric Extension Foundation, Duncan, Okla., 25% of the young colorblind men who took vitamin A...
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