3D Mapping for PVI- Geometry, Image Integration and Incorporation of Contact Force Into Work Flow.

Catheter ablation of atrial fibrillation has evolved enormously thanks to rapid improvement of modern mapping technologies, progress in catheter development and current possibilities for reduction of radiation exposure. Pulmonary vein isolation is thereby the cornerstone in this interventional treatment. Increased precision of catheter localization by modern three-dimensional mapping systems, faster and better processing of local electrograms and their immediate color-based visualization make it possible to treat even challenging arrhythmias very effectively.

Central versus thinnest pachymetry of the cornea and thinnest point vector length: impact of ocular side, refractive state, age, and sex.

Purpose: To quantify the difference in corneal thickness between the central and thinnest point (ΔCCT-TPCT) and the distance between the center of the cornea and its thinnest point (TPCT vector length) and to explore the impact of ocular side, refractive state, age, and sex.

Methods: Multicenter, retrospective, cross-sectional study. Medical records of 8054 eyes of 4027 refractive surgery candidates were reviewed.