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Haag Streit R900 Tonometer

Haag Streit R900 Tonometer


Haag Striet R900 tonometer is designed to fit most all tower slit lamps.


  • The measurement of the ocular pressure is carried out on the patient sitting at the slit lamp in conjunction with other routine microscopic examinations.
  • High accuracy of the measurement - the average deviation in any one single examination does not exceed ± 0.5 mm Hg.
  • The intraocular pressure in mm Hg is found by multiplying the drum reading by ten.
  • Scleral-rigidity is not to be taken into account as the small volumetric displacement of 0.56 mm3 increases the intraocular tension by about 2.5 % only.
  • Repeated measuring procedures do not reduce the ocular pressure, as no massaging effect occurs.
  • The instrument stays permanently mounted to the slit lamp and is swung into place when IOP readings are required.

*A mount is needed to mount this to your slitlamp. Please make sure to add a mount to your cart and specify what slit lamp you will be mounting it to.




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