This is a tonometer used to screen for intraocular pressures over what was deemed “normal”. From around 1950.Based on the Schiotz tonometer. There are instructions for its use included.(see images)
This is a tonometer used to screen for intraocular pressures over what was deemed “normal”. From around 1950.Based on the Schiotz tonometer. There are instructions for its use included.(see images)
