May ophthalmoscope by Wiseman and spot retinoscope, cased

Catalogue Number: 4111
May ophthalmoscope by Wiseman and spot retinoscope, cased
Category: Equipment
Sub-Category: Ophthalmoscope retinoscope set
Designer/inventor: Charles H May
Year Of Publication/Manufacture: c1930
Time Period: 1900 to 1939
Place Of Publication/Manufacture: England
Publisher/Manufacturer: M Wiseman & Co Ltd
Description Of Item: Self illuminating ophthalmoscope head, spot retinoscope head and black battery handle with metal cap and white sliding on-off switch. Black metal ophthalmoscope head with prism reflector & revolving lens disc. Stamped 'PAT 358766 on rear. Front marked: 'MAY OPHTHALMOSCOPE Improved/ M WISEMAN & Co Ltd'. Black leatherette-covered fitted wooden case with purple velvet lining & metal snap catch. Case:W:180 mm x D:120 mm x H:55 mm. Inside rim of case stamped with gilt lettering 'MADE IN ENGLAND'.
Historical Significance: May designed this 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: Donated by William Law
Date Acquired: 29.11.2021
Condition: Good
Location: Archive Office. Cabinet One Drawer 12

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