Takagi MT318 Ophthalmometer
 Catalogue Number: 1106 Takagi MT318 Ophthalmometer Category: Equipment Sub-Category: Keratometer Ophthalmometer Designer/inventor: L E Javal & H A Schiotz Year Of Publication/Manufacture: c1975 Time Period: 1940 to 1999 Place Of Publication/Manufacture: Nakano, Japan Publisher/Manufacturer: Takagi Manufacturing Co Description Of Item: Takagi Javal Schiotz keratometer (ophthalmometer). Table mounted with joystick control & chin & brow rest. Grey & black painted metal.Imprint: MODEL MT318, No 8249, Takagi Mfg Co, Nakano, JapanH: 45cm x W: 32 cm D: 38 cm Historical Significance: The Javal Schiotz type keratometer (or ophthalmometer) uses two self illuminated mires, one a red square, the other a green staircase design, to determine the radius of curvature of the cornea. It uses a fixed image size and two positions to measure corneal curvature, whereas Bausch & Lomb type keratometers use a fixed object size and measure from one position.In 1881, Louis Emile Javal (1839-1907) & Hjalmar August Schiotz (1850-1927) first detailed their ophthalmometer in "Un opthalmometre pratique", in Annales d'Oculistique, Paris 1881, 86:5-21. How Acquired: Donated by David Glennie, Karingal Optical, Frankston Date Acquired: 14.02.2009 Condition: Very good Location: Archive room. East wall Unit 2 Cupboard |