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Arch Ophthalmol. 2004;122:184.

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

At the beginning of last year, the report by an outstanding expert of the judicial court of St Petersburg that they had identified a murderer in Ssaratow by means of an Optogram, which they had succeeded in obtaining from the eye of the slain, created a great commotion in the Russian press.

In my article, "About Optography and its Medicolegal Aspects," printed in the "Journal of Hygiene, Medicolegal and Practical Medicine" of January, published by the Ministry of the Interior, I refuted not only the fact of the discovery of the murderer—which had turned out to be untrue—but also the possibility that such Optograms could preserve themsleves on the retina of slain person and then be photographed. I concluded my article by attaching the following letter of Profesor W. Kuehne, which he had sent me graciously from Heidelberg:

Esteemed Doctor!
Since the visual purple is bleached by light to a . . . [Full Text of this Article]