Abstract
Conclusions
1. A method is described in which a rapid light flash is made use of as a perinietric target. 2. The technique of the examination is simple, neither the observer nor the patient become fatigued by tlie procedure and the perception of the flash being critical. The flash is recognized or it is not seen. Field defects are discovered to a degree not detectable by the older, far more painstaking method, which required greater cooperation and intelligeiice on the part of the patient. 3. Although a complete interpretation of all the findings delineated by this method must await further case study and subsequent confirmation by biopsied and autopsied materials, it appears that the method has certain advantages in localization of lesions of the optic pathways.
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