The TW-2417R/T is a Goldmann-type applanation tonometer mounted on the slit lamp: the reference method for measuring intraocular pressure.
You measure the pressure during the same slit-lamp examination in which you assess the anterior segment. The measurement is accurate and repeatable: the total tolerance is below 0.066 kPa (0.5 mmHg), and the measuring force can be adjusted for stable readings over time.




