American Optical Binocular Indirect Ophthalmoscope
 Catalogue Number: 4074 American Optical Binocular Indirect Ophthalmoscope Category: Equipment Sub-Category: Ophthalmoscope Corporation: American Optical Co. Time Period: 1940 to 1999 Place Of Publication/Manufacture: Southbridge, Mass. , USA Publisher/Manufacturer: American Optical Co. Description Of Item: Head-mounted binocular indirect ophthalmoscope with electric leads and original transformer in grey metal case. 'Electric Inspection Plate' label on side of transformer with table marked years 1963 to 1967 vertically and months of the year (Jan to Dec) along the top. Transformer engraved 'R.V.E.E.H. Eye O.P. No 2 for ophthalmoscope No 5868'. This information also hand written on inside of case. Plate with' American Optical Company, Made in USA' along with company logo on the light source. Case measures 33 x 28 cm. Historical Significance: In 1947, ophthalmologist Charles Schepens improved the design of the monocular indirect ophthalmoscpe by adding a second lens, allowing a bincoular 3D (inverted and reversed) view of the ocular fundus, with a large field when viewed through a hand held condensing lens. Binocular indirect ophthalmoscopy is now routinely used by ophthalmologists and optometrists for an enhanced view of the ocular fundus through a dilated pupil. How Acquired: Donated by Dr Alan Isaacs Date Acquired: 07/11/19 Condition: Ophthalmoscope good condition, case fair condition Location: Mike's Room |