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JACOB B. FELDMAN, M.D.

Arch Ophthal. 1937;18(5):821-826.

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

On several occasions I have presented data obtained by the examination of eyes for the study of dark adaptation.¹

These tests were quantitative and required the instillation of a miotic which was occasionally objected to by the patient. Then, too, the procedure was a time-consuming one, since it took about one-half hour for the actual study to be made and a like amount of time for the plotting of a graph.

In an extensive study of unselected cases one expects to find a large number of normal persons with normal dark adaptation. It was therefore felt that much time could be saved if a simpler device was used which would quickly eliminate this group of normal persons. With such a test only a single reading of the minimum light visible is taken, with the light as the constant and time as the variable. This is in . . . [Full Text PDF of this Article]

Author Affiliations
PHILADELPHIA

From the Laboratory of Ophthalmology, the Wills Hospital.

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