Maddox wing test instrument, c 1920-1937.

Image number: 10287592

Maddox wing test instrument, c 1920-1937.

Maddox wing test instrument, made by Weiss, London, used to test for imbalances in binocular vision, for example heterophoria; ie the tendency to squint. Full view.

Image number:
10287592
Credit:
Science Museum/Science & Society Picture Library
Date taken:
12 January 2004 15:55
Image rights:
Science Museum