The standard for the measurement of intraocular pressure
between 0 to 78mmHg. As the area of applanation is only 3.042mm the scleral
rigidity does not influence readings.
Goldmann Model Tonometer Haag Streit: This attaches to
the footplate of the slit lamp and is removed from the slit lamp when
not in use. Fits the Haag-Streit 900BM and 900BQ slit lamps.
Goldmann Tonometer: This tonometer Haag streit 900 is permanently attached
to the slit lamp by means of a special mounting spigot.
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