The PASCAL Dynamic Contour Tonometer (DCT)  is a slitlamp mounted tonometer for measuring intraocular pressure IOP independent of corneal properties. The PASCAL is capable of providing true IOP, independent of CCT and rigidity confirmed with intracameral measurements. It also offers the highest repeatability for a refine IOP and glaucoma progression analysis, and determines Ocular Pulse Amplitude (OPA), which has been correlated to glaucoma risk.