PURPOSE To compare corneal biomechanical properties following three different transplantation techniques, including Descemet stripping automated endothelial keratoplasty (DSAEK), deep anterior lamellar keratoplasty (DALK) and penetrating keratoplasty (PK) in comparison to normal eyes. METHODS This cross-sectional comparative study included 118 eyes: 17 eyes of 17 patients received DSAEK, 23 e...

Purpose: The optical quality of the interface after deep anterior lamellar keratoplasty (DALK) using the big-bubble technique has been shown to be excellent, leading to results comparable to penetrating keratoplasty. However, there is little in the literature with respect to the controversy surrounding the preparation of the donor cornea. The purpose of this study was to evaluate visual acuity ...

Case reporting the use of one donor cornea for two transplantation procedures: deep anterior lamellar keratoplasty (DALK) in a case of an imminent corneal perforation caused by herpetic stromal necrosis, and Descemet stripping with endothelial keratoplasty (DSEK) in an eye with pseudophakic bullous keratopathy (PBK). Descemet's membrane (DM), denuded by stromal necrosis, served as the starting ...

PURPOSE To compare the microstructural differences in fresh corneal tissue (FCT) with glycerin-cryopreserved corneal tissue (GCCT) used during deep anterior lamellar keratoplasty (DALK). METHODS The medical records of 48 consecutive patients who underwent DALK for stromal opacity without endothelial abnormalities were retrospectively reviewed. Patients were divided into two groups: an FCT gro...

Dear Editor, The phenotypic appearance of granular corneal dystrophy (GCD) type 1 and GCD type 2 (also known as Avellino corneal dystrophy) changes with age, but is believed to also be influenced by trauma or intervening surgical procedures [1-3]. This report presents two cases of GCD, with varied manifestations before and after surgical intervention. Incidentally, Lee et al. [4] noted high pre...

We describe a technique using deep anterior lamellar keratoplasty (DALK) in 5 eyes that developed keratectasia after LASIK. The technique is based on surgical manipulation that allows visualization of the lamellar dissection depth using a posterior approach to reach the predescemetic space. The mirror effect, indentation effect, and folding effect were used to determine proximity to Descemet's ...

Purpose: To report a case of double descemet membrane forming a double anterior chamber following ‘Big bubble’ DALK converted to PKP. Results: A 52-year-old man with keratoconus underwent DALK operation converted to PKP due to macro perforation of the descemet membrane. On the postoperative evaluation a remnant of the host’s descemet membrane formed a double anterior chamber. After a few months...

purpose : to compare outcomes of penetrating keratoplasty (pk) and deep anterior lamellar keratoplasty (dalk) in keratoconic eyes in a university teaching hospital setting methods : in this longitudinal cross-sectional study all patients who underwent pk or dalk for keratoconus at 2 years period were included to the study. the patients were recalled and complete eye examination including best s...