Maddox wing test instrument, c 1920-1937.
Image number: 10287592
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:
- Science Museum/Science & Society Picture Library
- Date taken:
- 12 January 2004 15:55
- Image rights:
- Science Museum