Cased Liebreich ophthalmoscope
 Catalogue Number: 1552 Cased Liebreich ophthalmoscope Category: Equipment Sub-Category: Ophthalmoscope Designer/inventor: Richard Liebreich Year Of Publication/Manufacture: c1860 Time Period: 19th C Place Of Publication/Manufacture: Germany Description Of Item: Cased Liebreich ophthalmoscope (Non illuminated). Concave mirror with central sight hole. Brass head painted black. Ebony handle. Coccius clip to hold small lenses can pivot out of line of sight. 3 Coccius lenses. One condensing lens. Black leatherette case lined with red satin & velvet. Outside case gold stamped 'Dr Liebreich's Ophthalmoscope'. Inside case: 'L. Bruck, Sydney'. Ophthalmoscope: 12.0cm long. Case:14.0cm L x 6.6cm D x 2.7cm H Historical Significance: A number of early ophthalmoscopes, such as those of Coccius (1853), Wilhelm von Zehender (1854) and Richard Liebreich (1855), used separate individual lenses to correct an out of focus ophthalmoscopic image. These were inconvenient and took time to change. In 1852 Egbert Rekoss added two rotatable discs of lenses to Helmholtz's original 1851 instrument. Rekoss discs are still used in direct ophthalmoscopes today. How Acquired: On loan from Optometrists Association of Australia via Joe Chakman Date Acquired: 02.08.2010 Condition: Very good, (case exterior only fair) Location: Archive Office. Cabinet One Drawer 8 |