Arc perimeter on stand
 Catalogue Number: 4481 Arc perimeter on stand Category: Equipment Sub-Category: Perimeter, visual field analyser Time Period: 1900 to 1939 Description Of Item: Black metal stand perimeter. Small mirror as fixation target. Chin rest and cheek rest. White plastic celluloid scale and dial with black metal pointer. Labelled 'Donated by Member Ronald Bromley/ 24/11/2003'. H: 590mm W: 270mm D: 130mm. Historical Significance: Labelled 'Donated by Member Ronald Bromley/ 24/11/2003'Measurement of loss of peripheral visual fields dates from 1856 (von Graefe) and the first arc perimeter was devised in 1857 by Hermann Aubert. The hand held arc perimeter was devised in 1888 for use at a patient's bedside. This item is a small arc perimeter on a stand but it is possible it began life as a hand held perimeter and the stand was added later, or that it was made to be either on a stand or with a handle. Ref: BOA Museyeum No 2004.606 How Acquired: Donated by Optometry Australia Queensland Date Acquired: 30 Sept 2024 Condition: Fair Location: Archive room. West wall. Unit 6 Overhead display |