PASCAL dynamic contour ton-ometer and clinical application

The measurement of intraocular pressure plays an important role in diagnosis and treatment of glaucoma.The fact that center cornea thickness affects the results of the Goldmann applanation tonometer(GAT) made the "gold standard" position of GAT changed.The latest developed dynamic contour tonometer using contour matching principle and pressure sensor principle to measure intraocular pressure can overcome the shortcomings of GAT in theory.This article mainly introduces the principal of measurement,composition,process of measurement,and the using methods of this new tonometer.Further more,there is a comparison with GAT in clinical application.