Abstract: Examinations of the visual field required a spatially large system in the form of a perimeter or a (noise-field) campimeter with a microcomputer, a control and a video monitor. Additional testing apparatuses were required for further examinations. A compact apparatus is provided which can be transported and handled easily for determining visual field defects and for carrying out further examinations, such as testing distance and near vision, vision in the case of an approaching-light glare, testing strabismus, stereo tests, color tests and tests for measuring a reaction. For this purpose, a computer-controlled measuring apparatus is provided by way of a display and a lens system. The apparatus is housed in a spectacle-type and/or helmet-type carrier while the dimensions are small.