Near point target

Catalogue Number: 2161
Near point target
Category: Equipment
Sub-Category: Reading card, tests of near vision
Year Of Publication/Manufacture: 1940s ?
Time Period: 1940 to 1999
Place Of Publication/Manufacture: Mt Vernon, New York, USA
Publisher/Manufacturer: General Optical Co Inc
Description Of Item: Near point card, white card,115 x 127 mm, near point cross cyl target on one side and vertical;y aligned words on the other. Name and location of manufacturer and the code P-4530-1 on both sides. A separate item is the same card cut in a shape of a T.
Historical Significance: The cross target is for determining near addition to correct presbyopia using a cross cylinder. The vertical lines are probably intended as a target for measuring fusion reserves
Condition: Good
Location: Archive office. Pamphlet and ephemera filing cabinet. Drawer 5

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