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Mark D. McAdams, OD; Anthony J. Adams, OD, PhD
Berkeley, Calif

JAMA. 1975;232(1):21.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

To the Editor.—

A report (220:1425, 1972) discussing the findings of Sassoon and Tolder¹ indicated that a large percentage of young children have a deficiency of blue vision. In view of the apparent absence of any previous reports of blue vision anomalies in children and the serious implications for the early education of young children, we re-examined this question.

We administered the AO H-R-R pseudoisochromatic plate test (American Optical Corp.) and the Farnsworth Panel D-15 test (The Psychological Corp.) to 413 children between 3 and 10 years old. The D-15 test involves the serial placement of 15 colored caps in a gradually changing color sequence, with a fixed reference cap providing the initial color.

We found no blue-yellow vision failures with either the AO H-R-R or the D-15 test when the tests were scored by traditional methods. This result is consistent with the previously reported low incidence of blue . . . [Full Text PDF of this Article]

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