# pneumotonometer

> English word · Noun

## Definitions
1. An ophthalmic instrument that is used to measure the intraocular pressure using a balanced air pressure (sometimes achieved by blowing a puff of air at the cornea and measuring the subsequent flattening for the corneal surface)

## Etymology
From pneumo- + tonometer.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/pneumotonometer