Catalogue Number: 2232
American Optical May ophthalmoscope No.115 SB
Designer/inventor: Charles H May
Year Of Publication/Manufacture: c1935
Time Period: 1900 to 1939
Place Of Publication/Manufacture: USA
Publisher/Manufacturer: American Optical Co
Description Of Item: Metal and glass ophthalmoscope finished in black. Battery handle missing end cap. Marked 'No 115 SB/ MAY OPHTHALMOSCOPE/ AMERICAN OPTICAL CO./ U.S.A./ T.M. REG. U.S. PAT. OFF./ U.S. PAT. 1767266/ MADE IN U.S.A.' The patent of April 14, 1928 refers to an illumination system. 223mmx43mm. Black surface finish worn on instrument head and rear of battery handle.
Historical Significance: May designed an improved ophthalmoscope in 1915. The improvement was to the illuminating optics. See May C H The May Electric ophthalmoscope. Trans Am Ophthal Soc 1915; 14: 165-167. Charles Henry May (1861-1943) was a New York ophthalmologist who wrote 'May's Manual of Diseases of the Eye for students and practitioners' first published 1900 and which ran to 22 American Editions and many other editions in other countries and languages. See his obituary Snyder C Arch Ophthal 1961 142-1943.
How Acquired: Purchased by Kett Museum via EBay
Date Acquired: 22.07.2013
Location: Archive office. East wall shelves unit 1