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Die Bestimmung des Astigmatismus durch die Schattenprobe mit Cylindergläsern.

JAMA. 1927;88(4):271. doi:10.1001/jama.1927.02680300057039.
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Cylinder retinoscopy! What a formidable sounding method to the ophthalmologist trained to do retinoscopy with spherical lenses only. And still really not any more difficult after the principles and basic rules are understood. But to do an accurate cylinder retinoscopy, the ophthalmologist must be able first to do an accurate spherical lens retinoscopy, a point which Lindner emphasizes. One is accustomed to think of cylinder retinoscopy as a Vienna product; in reality, it was first described in France and then elaborated at length by Jackson and Duane. It has been practiced in Vienna only within the last ten years. In his booklet, Lindner has described the method at length, avoiding the mathematical pitfalls in which the average ophthalmologist is so easily trapped. The various steps and many of the conditions encountered are illustrated with drawings that are more or less self-explanatory. It is to be regretted that Lindner has not


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