Descemet-stripping automated endothelial keratoplasty (DSAEK) has become the procedure of choice to treat corneal endothelial dysfunction. The technique involves replacing the diseased host endothelium with a graft consisting of a thin layer of posterior stroma, Descemet membrane, and endothelium. In comparison to penetrating keratoplasty (PK), DSAEK confers quicker visual and structural recove...

Descemet’s stripping automated endothelial keratoplasty (DSAEK) has become the procedure of choice to treat corneal endothelial dysfunction. The technique involves replacing the diseased host endothelium with a graft consisting of a thin layer of posterior stroma, Descemet’s membrane and endothelium. In comparison with penetrating keratoplasty (PK), DSAEK confers quicker visual and structural r...

normal 0 false false false en-us x-none ar-sa background : the aim of this study was to determine the correlation between corneal hysteresis (ch) and the corneal resistance factor (crf), which are both novel methods of analyzing ocular rigidity/elasticity, and various corneal characteristics, mainly corneal volume in normal subjects. methods : this cross-sectional study included 500 normal eyes...

Patients with a variety of corneal diseases may develop stromal scars that interfere with vision. Vascularization of these scars may lead to inflammation, extravasation of lipid, and progressive opacification. Laser treatment of the neovascular vessels may induce regression of these vessels, with resultant increased corneal clarity and improved vision. We describe the treatment and outcome of 3...

PURPOSE To investigate the potential inhibitory effects of RNA interference-mediated knockdown of neuropilin-2 (NP2) on inflammation-induced corneal hemangiogenesis and lymphangiogenesis, and whether selective inhibition of lymphangiogenesis on vascularized recipient beds before transplantation improves the graft survival. METHODS Mouse lymphatic endothelial cells were transfected with the pl...

Infiltration of granulocytes into the transparent mammalian cornea can result in loss of corneal clarity and severe visual impairment. Since the cornea is an avascular tissue, recruitment of granulocytes such as neutrophils and eosinophils into the corneal stroma is initiated from peripheral (limbal) vessels. To determine the role of vascular adhesion molecules in this process, expression of pl...

to evaluate long term safety and efficacy of the photo refractive keratectomy (prk) in myopic eyes with thin cornea, this study has been designed. in this retrospective case series study, we included 74 eyes of 38 myopic patients with preoperative central corneal thickness (cct) less than 550 micrometer who underwent for prk surgery prior to 2010 and had 4 years of mean follow up postoperativel...

The anterior one-fifth of the human eye is called the cornea. It consists of several specialized cell types that work together to give the cornea its unique optical properties. As a result of its smooth surface and clarity, light entering the cornea focuses on the neural retina allowing images to come into focus in the optical centres of the brain. When the cornea is not smooth or clear, vision...