CAT NO: DIDACTICNLE-Export-132079
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 colours 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..