Lister Perimeter

Listing ID #1537134

Lister Perimeter is used to measure the peripheral field of vision. The apparatus comprises of a calibrated arc, contains five color and five apertures of different diameter calibrated scale. At the back of the arc arrangement is provided for fixing of chart which has concentric corresponding to the degrees of arc. Adjustable chin rest all fitted over a sturdy base with receptacle for keeping charts for table top use. Complete with 10 charts.