Haag-Streit AT 900 & AT 900 D

Two instruments - one gold standard

Haag-Streit offers two models of Goldmann applanation tonometers: the AT 900 a purely mechanical instrument and the AT 900 D which introduces advantages from digital technology.

Haag-Streit AT 900 & AT 900 D

Enduring performance

Thanks to the high precision of manufacturing at Haag-Streit, the Goldmann applanation tonometer offers reliable performance over many years without the need for manufacturer maintenance.

Tonometer fixation

Which tonometer with which slit lamp

Depending of the slit lamp, the Haag-Streit Goldmann applanation tonometers have different ways of how they are mounted.

Tonometer fixation

Type BQ / BP

The Applanation Tonometer type BQ / BP fits the Haag-Streit slit lamps BQ 900 and
BP 900
. It provides a parking position and can be easily placed into working position. The applanated surface is observed monocularly through the right eyepiece of the stereo microscope.

Tonometer fixation

Type R

The applanation tonometer type R fits the BI 900, BM 900 and BD 900 as well as many 3rd 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.

Tonometer fixation

Type T

The Applanation Tonometer type T 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.