Bernell test lantern
 Catalogue Number: 1685 Bernell test lantern Category: Equipment Sub-Category: Reading card, tests of near vision Year Of Publication/Manufacture: c 1980 Time Period: 1940 to 1999 Place Of Publication/Manufacture: South Bend, Indiana, USA Publisher/Manufacturer: Bernell Corporation Description Of Item: Cream coloured metal case 145 W x 140 H x 87 D mm with U shaped stand that allows to unit to be tilted. It has an internal light source with provision to place test slides in either the front or back of the unit. This unit has two removable slides, one for measuring fixation disparity and the other for near vision and near heterophoria. A Worth 4-dot test is built into one side. Electrical lead with switch.Unit has no maker's plate but one of the slides is labelled 'No 553A Near Point Analysis Slide, Bernell Corp., So. Bend. Ind.' Historical Significance: Bernell is a large supplier of vision test products and other materials for optometric practice. The original company was founded in 1954 by Dr. Bernard Vodnoy and his wife Nellie (hence BERnell). The company was rebuilt when it had financial problems in 1997 by two practising optometrists, Dr. Craig Andrews and Dr. Charles Shearer. It specialises in low cost binocular vision and visual training materials that could be loaned or sold to patients for home training. This kind of material lead to the abandonment from the 1980s of the synoptophore as the main diagnostic and training instrument How Acquired: Donated by ACO Optometry Clinic Date Acquired: 8.11.2010 Condition: Good Location: Archive room. West wall. Unit 4 Overhead display |