Norbert Peters

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PURPOSE To assess the accuracy and variability in pachymetry measurements obtained by Orbscan and by DGH ultrasound in primary laser in situ keratomileusis (LASIK) and LASIK enhancement procedures. SETTING Gimbel Eye Centre, Calgary, Alberta, Canada. METHODS A retrospective analysis of 906 consecutive primary LASIK and 183 consecutive LASIK enhancement(More)
BACKGROUND In select cases, lichen planus has been observed to be a paraneoplastic condition sometimes associated with paraneoplastic pemphigus, a disease featuring autoantibodies directed against plakin proteins, desmogleins 3 and 1, and a still uncharacterized 170-kd antigen. Epitope spreading describes the phenomenon where underlying chronic inflammation(More)
Laser in situ keratomileusis (LASIK) has become the most common procedure to correct refractive errors in North America. Increasing numbers of patients and surgeons are choosing LASIK in the management of low and moderate myopia, astigmatism, and hyperopia. LASIK presents a unique group of postoperative challenges and complications. It is important to be(More)
PURPOSE To systematically examine sources of endotoxin contamination in eye centers as a potential cause of diffuse lamellar keratitis (DLK) and to demonstrate the inflammatory potential of endotoxin in a rabbit model of laser in situ keratomileusis (LASIK) surgery. SETTING University of Calgary, Calgary, Alberta, Canada. METHODS In this prospective(More)
BACKGROUND Mycobacterium chelonae is an uncommon but recognized cause of chronic localized cutaneous infection at a site of penetrating trauma or a surgical wound. OBJECTIVE The problem faced by physicians encountering an infection by M. chelonae is often response to therapy, which may be highly variable. METHODS We describe an immunocompetent patient(More)
Three patients who had laser in situ keratomileusis (LASIK) experienced severe direct corneal trauma 3 to 38 months postoperatively. Flap dislocation resulted in all 3 patients. Presentation following trauma ranged from a few hours to 9 days. All patients were successfully managed by surgical flap repositioning, and all maintained a best corrected visual(More)
PURPOSE To evaluate the effect of an intraoperative topical intrastromal steroid on the incidence and severity of nonspecific diffuse intralamellar keratitis (NSDIK). SETTING T.L.C. The Laser Center, Brea, California, USA. METHODS This prospective study included 2 cohort groups, each consisting of 105 consecutive eyes treated with laser in situ(More)
PURPOSE To evaluate the safety and efficacy of laser in situ keratomileusis (LASIK) in selected post-radial-keratotomy (RK) eyes with residual myopia and astigmatism. SETTING TLC-The Brea Laser Eye Center, Brea, California, USA. METHODS Nine eyes of 6 patients who had had RK but had residual myopia and/or astigmatism had LASIK. All RK eyes had 8 radial(More)
PURPOSE To report on a complication of blepharopigmentation. METHODS Case report. RESULTS An 81-year-old woman underwent cosmetic tattooing of all four eyelids. The pigment immediately spread from the right lower eyelid lash line to the nasojugal fold. The dispersion was so extensive in surface area that nonsurgical techniques for ameliorating the(More)