نتایج جستجو برای: dalk
تعداد نتایج: 181 فیلتر نتایج به سال:
Definitive treatment for loss of corneal transparency or for corneal distortion is a corneal transplant. When the sight affecting pathology lies in the corneal stroma, deep anterior lamellar keratoplasty (DALK) allows retention of the healthy recipient endothelium and Descemet’s layer. The “Big Bubble” (BB) technique described by Mohamed Anwar is the most popular Descemet’s baring technique wor...
Aims: To analyse the outcome of DALK in patients with keratoconus terms best corrected and uncorrected visual acuity, average K topographic astigmatism. Settings design: Prospective interventional case series study Material methods: 28 eyes diagnosed were evaluated from August 2009 – July 2011 a tertiary eye care hospital. All underwent outcomes assessed on 4 parameters: Average Keratometric re...
The purpose of this study is to demonstrate the feasibility of DALK using a decellularized corneal matrix obtained by HHP methodology. Porcine corneas were hydrostatically pressurized at 980 MPa at 10°C for 10 minutes to destroy the cells, followed by washing with EGM-2 medium to remove the cell debris. The HHP-treated corneas were stained with H-E to assess the efficacy of decellularization. T...
PURPOSE Loss of corneal strength is a central feature of keratoconus progression. However, it is currently difficult to measure corneal mechanical changes noninvasively. The objective of this study is to evaluate if Brillouin optical microscopy can differentiate the mechanical properties of keratoconic corneas versus healthy corneas ex vivo. METHODS We obtained eight tissue samples from healt...
F emtosecond laser technology is all around us now, and many refractive surgeons have chosen to invest in one of the four available technologies. This article will review the current status of those machines designed specifically for refractive surgery, which include the Femto LDV (Ziemer Group, Port, Switzerland), IntraLase (Abbott Medical Optics Inc., Santa Ana, California), Technolas 520F (T...
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