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Product Overview

Haag-Streit R900  Main Pic 1.jpg

Haag-Streit AT900 Goldmann Applanation Tonometer

The gold standard in IOP measurement

Because it is fast and reproducible, Goldmann applanation tonometry has been the gold standard of tonometry for many decades until today. It is based on the Goldmann principle – proven during more than 50 years of usage with millions of patients.
Furthermore, thanks to the high precision of manufacturing at Haag-Streit the Goldmann applanation tonometer offers reliable performance during many years without the need for manufacturer maintenance.

Slit lamp compatibility

The Haag-Streit Goldmann applanation tonometers are mounted in different ways depending on which slit lamp is being used. The tonometers are compatible with all models of Haag-Streit slit lamps, including the BQ 900, BP 900, BI 900, BM 900 and BD 900.


BQ type tonometer

The BQ type applanation tonometer fits the Haag-Streit slit lamps BQ 900 and BP 900. It provides a parking position and can be easily be moved into place for working. The applanated surface is observed monocularly through the right eyepiece of the stereo microscope.


R type tonometer

The R type applanation tonometer fits the BI 900, BM 900 and BD 900 as well as many third-party slit lamps. It can be left on the slit lamp permanently. It is fastened to the microscope on a mounting base and swivelled in front of the microscope for the examination. The observation of the applanated surface is conducted monocularly – only through the left eyepiece.


T type tonometer

The T type applanation tonometer fits the Haag-Streit slit lamps BQ 900, BP 900, BM 900 and BI 900. It is set on a guide plate over the slit lamp axis. The instrument can be moved between two positions on the guide plate for observation through the right or left eyepiece. The tonometer is placed on the slit lamp only when applanation tonometry is performed.


Excellent optical quality

The reusable Goldmann measuring prisms are distinguished by their optical and mechanical performance which allows for fast and reliable measurements in daily practice. They are largely handmade by experienced workers, and are checked for tight tolerances in weight, optical quality, durability and for consistent measurement results.

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