Perimeter

* Used to measure the peripheral field of vision. * The apparatus comprises of a calibrated arc., revolving chart holder. * The object carrier which moves over the arc, contains five colors and five apertures of different diameter, calibrated scale. * At the back of the arc arrangement is provided for fixing of chart which has concentric circles 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 100 charts. * Dispatched in 5-7 days. * Picture may differ from actual.