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October 4, 1930

Untersuchungen über das Dunkelsehen mit Tscherning's photometrischen Gläsern.

Author Affiliations

Von Hans Ulrik Möller, I. Assistent an der Augenabteilung des Reichshospitals. Paper. Pp. 149. Copenhagen: Arnold Busck, 1929.

JAMA. 1930;95(14):1042. doi:10.1001/jama.1930.02720140064033

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This short monograph on dark adaptation gives an extensive and thorough review of all the literature of the subject, beginning with Aubert's work in 1865. The work includes investigations of the eye with regard to the various influences on the ultimate outcome, such as the diameter of the pupil, monocular and binocular results, and the size of the object. There are many investigations mentioned regarding the sensitivity in the various areas of the retina, the suppression of the visual acuity in reduced light and the variations of daylight. Extensive use was made of Tscherning's photometric glasses, first introduced in 1922, to vary the light intensity in applying its effects on the eye; also of Tscherning's lamprometer to measure the light intensity. Included are numerous tables and graphs regarding the ultimate results. The bibliography is practically complete, as it incorporates all the articles published to date on this subject. It is

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