Einsatz von Pseudo-Random-Arrays (PRA) für die objektive Perimetrie

One of the most important tasks in ophthalmology is the detection of thc visual field. The method therefore is called perimetry and the used devise is a permeter. Conventional perimeters work with subjective methods, where the patient has to signal the recognition of an applied light-stimulus by pressing a button. The cooperation of the patient is absolute necessary for a good result of the measurement. But, due to different causes, many patients can or will not cooperate that is why an objective method for perimetry is to be bound. A method of objective detection of the visual field is the usage of Visual Evoked Potentials (VHP). To reduce the measuring-time, multifocal stimulation has to be used. For multifucal Stimulation special sequences are necessary. A new form of sequences for perimetry is presented in this article.