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£80

TONOMETER

  • Date: C 1920
  • Maker: WEISS
  • Size: 7.5" (19 cm) x 3.25" (8 cm) x 1" (3 cm)
TONOMETER
TONOMETER - Image 1TONOMETER - Image 2

Description

This instrument was used by Optometrists to check the pressure in the eye. There are graphs and documents with it, plus a test certificate dated 1958. The same test today would be done by a puff of air on the eye.

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