PURPOSE To develop a mathematical model that can predict refractive changes after Descemet stripping endothelial keratoplasty (DSEK). METHODS A mathematical formula based on the Gullstrand eye model was generated to estimate the change in refractive power of the eye after DSEK. This model was applied to four DSEK cases retrospectively, to compare measured and predicted refractive changes afte...

BACKGROUND High volume cataract surgery is practised in many eye centres. OBJECTIVE To investigate whether routine high volume cataract surgery can be performed without compromising the quality of surgery. MATERIALS AND METHODS A retrospective interventional study was carried out at a high volume eye care centre including 368 subjects with cataract operated within 5 randomly selected theatr...

BACKGROUND Laboratory analysis and optical quality assessment of explanted hydrophilic intraocular lenses (IOLs) with clinically significant opacification after posterior lamellar keratoplasty (DMEK and DSAEK). METHODS Thirteen opacified IOLs after posterior lamellar keratoplasty, 8 after descemet stripping automated endothelial keratoplasty (DSAEK), 3 after descemet membrane endothelial kera...

PURPOSE To report the two-year results of Descemet membrane endothelial keratoplasty (DMEK) for managing corneal endothelial disorders. METHODS Non-randomized prospective clinical trial. A DMEK was performed in ten patients with Fuchs' endothelial dystrophy or bullous keratopathy. A 3.5 mm clear corneal incision was made and "under air" DM was stripped off from the posterior stroma. A 9.0 mm ...

PURPOSE To compare the big-bubble method using air and liquid as medium of separation for Descemet membrane endothelial keratoplasty (DMEK) lenticule preparation in an eye bank. METHODS Donor corneas (n=20) were immersed in liquid [tissue culture medium (TCM)]. Air and liquid was injected using a 25-gauge needle in the posterior stroma or as near to the stroma-Descemet membrane (DM) phase as ...

Rękas et al. 1report on a new technique for lavage of predescemetic hemorrhage and blood clot removal after canalostomy assisted using the iTrack microcatheter (Ellex, Inc.). We have been using canaloplasty since 2006. In the beginning we used a 6-0 polypropylene suture for the catheterization of Schlemm canal and placing of a tension suture. This technique was adapted from 360-degree trabeculo...

PURPOSE To compare posterior corneal curvature in the fellow eye of the same patients after Descemet membrane endothelial keratoplasty (DMEK) and Descemet stripping automated endothelial keratoplasty (DSAEK). METHODS This retrospective, case series comparative study included consecutive patients who underwent DSAEK in one eye and DMEK in the fellow eye. Each eye underwent corneal evaluation w...

PURPOSE To evaluate the endothelial cell survival and stromal bed quality when creating deep stromal cuts with a low-pulse energy, high-frequency femtosecond laser to produce "ultrathin" tissue for Descemet stripping automated endothelial keratoplasty. METHODS Seventeen corneas were used for this study. Five corneas were cut with the laser at a depth of 420 to 500 μm to produce a tissue thick...