PURPOSE To compare the accuracy of intraocular lens (IOL) power calculation using conventional regression formulae or the American Society of Cataract and Refractive Surgery (ASCRS) IOL power calculator for previous corneal refractive surgery. METHODS We retrospectively reviewed 96 eyes from 68 patients that had undergone cataract surgery after keratorefractive surgeries. We calculated the fo...

PURPOSE To prospectively evaluate postoperative clinical outcomes with implantation of toric intraocular lenses (IOLs) using preoperative keratometry from an optical low coherence reflectometry (OLCR) ocular biometer (Lenstar® LS900) and the built-in Barrett toric calculator. PATIENTS AND METHODS A prospective observational study recruited one or both eyes of subjects who underwent uncomplica...

Due to its open character, TEX can act as an authoring tool. This article demonstrates that by integrating TEX, METAPOST, JavaScript and PDF, one can build pretty advanced documents. More and more documents will get the characteristics of programs, and TEX will be our main tool for producing them. The example described here can be produced with PDFTEX as well as traditional TEX. Introduction Wh...

Network calculus [1, 2] was developed for use in IP and ATM networks. It aims to be a system theory for deterministic queuing, allowing to derive deterministic guarantees on throughput and delay, as well as find bounds on buffer sizes and thereby allow for loss-free transfer. Traditional queuing theory analyzes the average or equilibrium behavior of a network, whereas network calculus shows the...

Switzerland like many countries plans to undertake an energy transition and the government proposes different paths for 2035 and 2050 to achieve it. However the authors of this paper felt the need for a better information of the public on the energy matters. A special web-based information platform was introduced in 2015. The platform includes a calculator, a book providing 100 questions and an...