Stenopaeic Lorgnette for clinical refraction

Catalogue Number: 1087
Stenopaeic Lorgnette for clinical refraction
Category: Equipment
Sub-Category: Equipment, other clinical
Year Of Publication/Manufacture: c1920
Time Period: 1900 to 1939
Description Of Item: Small instrument on ebony handle for clinical refraction.Rotating disc has 3 slits of differing widths and 5 holes of various diameters. A spring clip can hold an auxilliary lens of 37mm diameter. The slits are to determine the cylinder axis of a refractive error. The holes are to narrow the central bundle of rays. L: 14.2 cm x W: 4.2 cm
Historical Significance: Refer: Hirschberg's History of Ophthalmology, Volume 11, Part 2, pp A70, A71
How Acquired: Purchased by Kett Museum
Date Acquired: 14.01.2009
Condition: Very good
Location: Archive room. West wall. Unit 6 Drawer 4

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