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The Goldmann Tonometer
The Applanation Tonometer is still the most widely used instruments to measure interocular pressure. The "Goldmann" method
allows IOP measurements to be taken with the patient at the
slit lamp as part of a routine
The accuracy of the measurement is extremely high. The average deviation in any one single examination does not exceed +/- 0.5.
mm HG.
The Applanation Tonometer 900 is a powerful accessory to the Haag-Streit 900 series slit lamps.The tonometer is also compatible with many other
brands of slit lamps.
Main Tonometer Features
- 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.
- There are no standardisation and calibration difficulties.
Tonometer Downloads for more information
Links for approved disinfectant solutions
Diagnostic and pediatric contact lenses — the perfect complement to our slit lamps.
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