purpose: to determine the incidence and prevalence of clinical keratoconus (kcn) in yazd province. methods: in this population-based survey, a surveillance program was established in yazd province (population size=990,818). all new clinically diagnosed cases of kcn were registered and referred for topographic imaging during one year (2008-2009) by all local ophthalmologist and optometrists. peo...

The pellucid zone (PZ) is a protective embryonic cells barrier against chemical, physical or biological substances. This put, usual transfection methods are not efficient for mammal oocytes and embryos as they are exclusively for somatic cells. Carbon nanotubes have emerged as a new method for gene delivery, and they can be an alternative for embryos transfection, however its ability to cross t...

This case report is about a rare disease with unusual presentation. Failure to recognise atypical presentation may lead to error in managing the patient and cause disastrous complications. Here we highlight a case of Terrien Marginal Degeneration in both eyes with atypical presentation; namely pseudopterygium. A 22 year old man was referred to our centre for iatrogenic right eye corneal perfora...

Our purpose was to examine the long-term efficacy of toric intraocular lens (IOL) implantation in cataract patients with high astigmatism due to corneal ectasia, who underwent phacoemulsification cataract surgery. Five eyes of 3 cataract patients with topographically stable keratoconus or pellucid macular degeneration (PMD), in which phacoemulsification with toric IOL implantation was used to c...

The Pellucid project is developing a customisable platform for experience management in public organisations. This paper introduces the Pellucid model of experience management, relates it to the design of the platform, and discusses how Semantic Web technologies have been applied in the project. The principal idea is the active hint as a transmitter of experience, generated spontaneously accord...

PURPOSE When treating peripheral ectatic disease-like pellucid marginal degeneration (PMD), corneal cross-linking with UV-A and riboflavin (CXL) must be applied eccentrically to the periphery of the lower cornea, partly irradiating the corneal limbus. Here, we investigated the effect of standard and double-standard fluence corneal cross-linking with riboflavin and UV-A (CXL) on cornea and corne...

In this paper we present the use of ontology for knowledge representation and handling for Administration Processes. Motivation has come from Pellucid (Platform for Organizationally Mobile Public Employees) is European Project IST-2001-34519, where we need to capture and capitalize employee’s knowledge in an organization. This knowledge is then presented to other employees as they work on parti...