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The British Refracting Unit and its Use
ARCHIVAL ITEMS
instruction leaflet
S. Pulzer & Son Ltd
Europe: United Kingdom
1933
paper
overall: 212 x 135 mm

Booklet outlining the construction and use of the British Refracting Unit (BRU) including measuring phorias by Maddox test or Duplicating Prism method, retinoscopy, subjective and near tests, measurement of ductions, accommodation and convergence tests. Black and white illustrations of the unit, its accessories and a practitioner (possibly Eric Ebbage) conducting a test on a patient. Also advertisements for the Pulzone chair and the automatic arm bracket. 16 pages.


2004.620

Gift of A. H. Rivron & Son Ltd, 2004



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