Catalogue Number: 4407 Clement Clarke R.A.F. Near Point Rule Category: Equipment Sub-Category: Tests of binocular vision Corporation: Clement Clarke Ltd. Time Period: 1940 to 1999 Place Of Publication/Manufacture: England Publisher/Manufacturer: Clement Clarke Ltd. Description Of Item: Binocular gauge to measure objective and subjective convergence as well as accommodation. Overall measurements 590 mm long, 110 mm wide, 167 mm high. Black square section rod 500 mm long with cheek rest attached with imprints on each face and a black plastic foldable hand piece bearing a hand written label 'CLINICAL RESEARCH R3.' at the other end. Imprints are: Top face in centimetres in 2 cm divisions from 6 to 50, Left face in Age 8 to 48. Right face Dioptres 2 to 20. Bottom face CLEMENT CLARKE LTD. MADE IN ENGLAND. R.A.F. NEAR POINT RULE DEFECTIVE REDUCED NORMAL CONVERGENCE. A black plastic sliding carrier holds a four sided rotatable target with black on white imprints of a reduced Snellen Chart, a telephone directory extract, a near point reading chart N 5 to N 12 and a fixation line target. How Acquired: Donated by ACO Clinical Services Date Acquired: 17/7/2023 Condition: Excellent Location: Archive room. West wall. Unit 4 Overhead display |