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Thomas Harrison Eames

Arch Ophthal. 1933;9(1):104-105.

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

Examinations of the eyes of groups of unselected school children, made in connection with two previous studies,¹ indicated practical orthophoria in distant vision and also at the reading distance. This was at variance with the statements of a number of authorities who maintain that a certain amount of exophoria at the reading distance is physiologic, its amount being estimated by Worth as between 2 and 3 degrees, and by Maddox as between 0 and 8 degrees. The possibility that physiologic exophoria at the reading distance might be a concomitant of age presented itself and was investigated.

Three hundred and two cases were examined for lateral heterophorias both in distant vision and at the reading distance. Ninety of the patients were presbyopic (40 years of age and over), and 212 were nonpresbyopic (39 years of age and younger). These 2 groups were compared statistically, and the data . . . [Full Text PDF of this Article]

Author Affiliations
Cambridge, Mass.

From Harvard University.

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