T1 20 tonometer is an instrument based on the principle of Imbert Fick Observer can get accurate IOP measurement data from dial drum after pressing the front of prism to contact patients cornea slightly and shining the light of slit lamp. The result of observation will be better with the use of fluorescein in light.
The margin of error caused by the accuracy of slit lamp is less than 0.066kPa (0.5mmHg).
Specifications :