Objective To evaluate the performance of dynamic contour tonometry(DCT)(Swiss Microtechnology AG) before and after laser in situ keratomileusis(LASIK) by comparing it to Goldmann applanation tonometry(GAT).

Preliminary report on use of dynamic contour tonometer in clinic;

Investigation of intraocular pressure and ocular pulse amplitude measured by dynamic contour tonometer in old population;

Research on dynamic contour tonometer and non-contact tonometer intraocular pressure in normal young people sitting day and night fluctuations trend

Methods OPA value and intraocular pressure(IOP) were measured with PASCAL dynamic contour tonometer(DCT) in 97 myopia patients with 17 to 40 years old(42 male patients,84 eyes;55 female patients,110 eyes).

AIM:To determine the distributions of intraocular pressure (IOP) and ocular pulse amplitude(OPA) using dynamic contour tonometer(DCT) in myopia population and relationships between IOP and refractive diopter,central corneal thickness and corneal curvature.

Only constraining the curves to be continuous and regular,the general active contour models achieve their local flexibility in the cost of global integrity and consequently cause the contour extraction to be highly sensitive to noise and nearby edges.

In general, the general active contour models is constrained barely by local features such as continuity and regularity, which made the curve moving flexibly and being capable of capturing various edge shapes.

The analysis of IOP measured with dynamic contour tonometer and applanation tonometer in LASIK patients.;