Microcomputer-Based Objective Visual Field Diagnosis

Abstract

The purpose of a perimetric investigation is to determine the outer limits of the visual field and to examine the functionality of the total region within the limits, as well as to determine the enlargement of the physiological blind spot, the so-called papilla nervi optici. Hence, perimetry represents an important differential diagnostic method not only for ophthalmology, but also for neurology and neurosurgery. Conventional perimetric methods are completely subjective measurements in the sense that the patient whose visual system is the object of measurement is, at the same time, the most important element of the measuring system. The minimum necessary pre-conditions for achieving reliable results are the ability and readiness of the person tested to co-operate. If these pre-conditions are lacking the method will fail.