Handpupillometer zur Prüfung der Pupillenlichtreflexe in der Praxis und am Krankenbett : Subjektive und objektive Funktionsprüfungen des Auges
1994
Owing to the sophisticated equipment currently required for the investigation of pupillary behavior, pupillographic procedures are still the preserve of a few specialized laboratories. To allow pupillographic measurements under ophthalmological office conditions, we designed a portable pupillometer that can also be used for bedside examinations. Following a defined light stimulus, the prototype presented in this paper records a direct pupillary light reflex on the basis of infrared reflex photometry. The latency of the pupillary reflex and the pupillary constriction time are determined and shown on a digital display.
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