title: An improved screen for use with the auto-plot perimeter.
abstract: The Auto-Plot perimeter is a projection perimeter designed for analysis of the central 30 degrees of the visual field. It supplies clean test spots, which can easily be varied in size and colour, and the results can be recorded rapidly. However, because the screen is flat, the size and illumination of the projected spots of light vary as the targets are moved outward from the fixation point. We have devised a very inexpensive curved screen which eliminates these disadvantages.
mesh_terms: D006801:Humans; D014787:Vision Tests / Q000295:instrumentation*; D014794:Visual Fields