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[The foregoing communication was referred to Dr. Small, who replies:]
To the Editor:
—When this paper was read before the Chicago Ophthalmological Society, I stated that I was not presenting any particularly new facts, but that my chief purpose was to point out the unusual conditions arising in this new field in order to get suggestions or criticisms and thus be able to make this branch of our military service as efficient as possible. I therefore wish to thank Dr. Blaauw for his criticism and am perfectly willing to abide by the judgment of other oculists in regard to these or other points in this subject. I can only state my personal opinion on the three points he discusses:1. Normal color sense is absolutely essential. The particular illustration used was simply to call attention to the inability of this form of color-blind person to distinguish between red and green.
Small CP. VISUAL REQUIREMENTS OF MILITARY AVIATORS. JAMA. 1917;LXVIII(16):1205–1206. doi:10.1001/jama.1917.04270040193025
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