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OBJECTIVE To investigate the magnitude and the possible causes of the refractive changes after Descemet's stripping with automated endothelial keratoplasty (DSAEK). In this article we describe the changes in corneal power after DSAEK and correlate them with the shape, diameter, and thickness of the endothelial graft obtained. STUDY DESIGN Retrospective(More)
OBJECTIVE Telerobotic surgery is a novel technology that can improve a surgeon's manual dexterity as well as the results achieved with microsurgical procedures. METHODS A prototype Robot-Assisted MicroSurgery (RAMS) microdexterity enhancement system developed by the Jet Propulsion Laboratory and MicroDexterity Systems, Inc., was tested in 10 rats. Carotid(More)
Penetrating keratoplasty (PK) has been the gold standard for the surgical treatment of most corneal pathologies; lamellar keratoplasty that only replaces the diseased corneal layers has recently evolved as an alternative, however. Innovations in surgical technique and instrumentation provide visual outcomes comparable to PK. We review the indications and(More)
PURPOSE Post-laser in situ keratomileusis (LASIK) corneal ectasia is a progressive deformation of the gross corneal anatomy that occurs after surgery. However, this is a rare event even after deep lamellar keratoplasty. We hypothesize that the strength of the lamellar keratoplasty wound is derived from the sutures that enhance the wound edge healing(More)
PURPOSE To evaluate excimer laser in situ keratomileusis (LASIK) for hyperopia and its predictability. METHODS We performed a retrospective study of 100 eyes that had LASIK for hyperopia to assess predictability and long-term stability of refractive results. The Chiron Automated Corneal Shaper was used to create the flap and the Keracor 117CT(More)
PURPOSE To show poor adhesion between the conjunctiva and the sclera in eyes with superior conjunctivochalasis (CCh) and to introduce a new surgical approach by reinforcing adhesion between the conjunctiva and the sclera for correcting this deficiency. METHODS After conjunctival peritomy and removal of the loose Tenon remnants, "Tenon reinforcement" for(More)
A 41-year-old patient with severe anterior segment ectasia and a previous history of failed corneal graft was treated by placing a 14-mm tectonic corneoscleral allograft in the eye to support both the corneal and the scleral thinning. Nylon 10-0 interrupted sutures were used at the sclero-scleral junction. The host conjunctiva, including the limbal area,(More)
PURPOSE To investigate the effect of nerve growth factor (NGF) in combination with docosahexaenoic acid (DHA) on corneal nerve regeneration in a rabbit model after PRK and correlate the findings with functional tear test. METHODS Unilateral PRK was performed on 21 New Zealand albino rabbits. Three groups, each consisting of six rabbits, were randomized to(More)
Conjunctival intraepithelial neoplasia (CIN) is the most common conjunctival malignancy in the United States. It occurs in exposed areas of the bulbar conjunctiva with frequent involvement of the adjacent corneal epithe-lium. Recent studies 1 have noted a recurrence rate of about 50% when there is pathological evidence of residual tumour in the surgical(More)
PURPOSE To determine whether a novel platelet-activating factor (PAF) antagonist prevents experimentally induced diffuse lamellar keratitis (DLK) after laser in situ keratomileusis (LASIK). SETTINGS Department of Ophthalmology and Neuroscience Center of Excellence, Louisiana State University Health Science Center, New Orleans, Louisiana, USA. METHODS(More)