PURPOSE To report the indications and techniques of corneal transplantation at a tertiary referral center in Tehran over a 3-year period. METHODS Records of patients who had undergone any kind of corneal transplantation at Labbafinejad Medical Center, Tehran, Iran from March 2004 to March 2007 were reviewed to determine the indications and types of corneal transplantation. RESULTS During th...

PURPOSE We report a case of Terrien's marginal degeneration (TMD) with a unilaterally typical narrow band of peripheral corneal stroma thinning, accompanied by the presence of an unusual network of opacities diffusing throughout the anterior stroma layers. CASE REPORT A 43-year-old woman presented with superior nasal peripheral corneal thinning and an unusual network of polygonal stromal opac...

purpose: to study the effect of phototherapeutic keratectomy (ptk) in the treatment of various superficial corneal pathologies. methods: we performed a nonrandomized, prospective study on patients who presented with superficial corneal disease and/or poor vision. fifty eyes were included recurrent corneal erosion (rce): 25 eyes, salzmann’s nodular degeneration: 9 eyes, spheroidal degeneration: ...

A 16-year-old female with juvenile idiopathic arthritis presented with a one-month history of decreasing vision and increasing corneal edema in her left eye. Slit-lamp examination, keratometric measurements, and OCT evaluation led to a diagnosis of Terrien's marginal degeneration in both eyes along with a complete detachment of Descemet's membrane in the left eye and partial detachment in the r...

A tapetoretinal degeneration combined with a marginal corneal dystrophy was described by Bietti in three patients (two of whom were brothers) in 1937.' The fundus picture was reported to be similar to that of retinitis punctata albescens, but the spots, located mainly at the posterior pole, were refractile, polygonal, and could be seen at all levels of the neuroretina. Pigment changes were seen...

In this paper we describe Pellucid Agent Architecture for experience knowledge management. This architecture is suitable for public organizations, which enact administration processes. Pellucid captures knowledge from experienced employees, explores new knowledge and assists unexperienced employee by providing relevant knowledge. Pellucid spontaneously gives advices (recomended contacts, useful...

OBJECTIVE The main objectives for this evidence-based analysis were to determine the safety and effectiveness of photochemical corneal collagen cross-linking with riboflavin (vitamin B(2)) and ultraviolet-A radiation, referred to as CXL, for the management of corneal thinning disease conditions. The comparative safety and effectiveness of corneal cross-linking with other minimally invasive trea...