Mark j Mannis cornea

PURPOSE: To highlight the paucity of surgeons performing ocular surface stem cell transplantation with systemic immunosuppression (OSSTx with SI) for limbal stem cell deficiency (LSCD) patients, suboptimal treatments for LSCD, and obstacles to adoption. METHODS: A review of the Eye Bank Association of America annual reports and the authors' case volume for OSSTx with SI was performed. Examination of the published literature on corneal surgeries, especially for LSCD, was completed...

PURPOSE: This case describes the successful visual restoration of a patient with end-stage Stevens-Johnson syndrome (SJS) with a severely keratinized ocular surface. METHODS: This study is a case report. RESULTS: A 67-year-old man with SJS secondary to allopurinol sought visual rehabilitation options. His ocular surface was severely compromised from sequelae of chronic SJS, leaving him with light perception vision bilaterally. The left eye was completely keratinized with severe ankyloblepharon...

PURPOSE: The aim of this study was to evaluate the visual, pachymetric, tomographic, and biomicroscopic findings in a series of cases presenting laser in situ keratomileusis (LASIK) flap interface fluid syndrome (IFS) after Descemet membrane endothelial keratoplasty (DMEK) surgery. METHODS: Six cases were included in this study; all patients had a history of LASIK surgery and underwent DMEK for the treatment of bullous keratopathy. After uneventful surgery, all patients presented with corneal edema and IFS under the LASIK flap, which was demonstrated with anterior segment optical coherence tomography (AS-OCT)...

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PURPOSE: The purpose of this study was to report a case of corneal opacity resulting from pigment deposition after face-down positioning, which was treated with Descemet stripping only (DSO) to enable concurrent pars plana vitrectomy (PPV) for retinal detachment repair. METHODS: A 79-year-old man with a history of Fuchs endothelial dystrophy and retinal detachment presented for the repair of recurrent retinal detachment and evaluation of a central corneal opacity...

PURPOSE: To analyze some of the bioethical dilemmas that may arise during the process required for corneal transplantation. METHODS: We conducted a narrative review based on the available literature and the experience of cornea specialists from 3 different countries. RESULTS: Bioethical dilemmas related to informed consent for organ and tissue donation, allocation of corneal tissues, transplant tourism, corneal tissue exportation and importation, and for-profit eye banking were analyzed and discussed...

PURPOSE: To characterize cornea specialists' current practice preferences in the management of primary pterygium. METHODS: A 25-item survey regarding indications for surgery, surgical technique, use of adjuvant therapy, type and duration of postoperative therapy, and treatment of early recurrences was designed and sent to members of the Cornea Society through the kera-net listserv. RESULTS: In total, 199 cornea specialists completed the questionnaire...

The course travelled by corneal epithelial cells from their stem cell niche at the limbus toward the vertex of the cornea is normally not evident due to their transparency, but in certain conditions, the epithelial cells can be rendered visible to the clinician. In such cases, the pathway taken by epithelial cells can manifest as a whorl pattern described using a variety of terms including hurricane keratitis/keratopathy, vortex keratopathy, whorl keratopathy, cornea verticillata, and at times, named after causative agents as exemplified by amiodarone keratopathy...

PURPOSE: To evaluate the predictability and reproducibility of stromal bed thickness for single-pass donor Descemet stripping automated endothelial keratoplasty (DSAEK) tissue preparation, using the ML7 Microkeratome Donor Cornea System (Med-logics Inc, Athens, TX). METHODS: In this retrospective chart review of 256 consecutive corneal tissue preparations for DSAEK surgery, from June 2013 to August 2014, tissue thicknesses were divided into 3 groups, depending on surgeon preference: <91 μm (group A), 90 to 120 μm (group B), and 120 to 160 μm (group C)...

OBJECTIVE: To obtain normative data for the normal laboratory beagle cornea using high-resolution in vivo confocal microscopy (IVCM). ANIMALS STUDIED: Sixteen eyes of eight healthy young female intact beagles. PROCEDURES: The central cornea was imaged using IVCM. Mixed effects linear regression was used for statistical analysis. RESULTS: in vivo confocal microscopy allowed detailed visualization and quantification of epithelial cells (superficial epithelial cell diameter: 43...

OBJECTIVE: To obtain normative data for the canine cornea and conjunctiva using high-resolution time- and Fourier-domain optical coherence tomography (TD-OCT and FD-OCT) and ultrasound pachymetry (USP). ANIMALS: One hundred sixty-eight eyes of 133 healthy young intact laboratory beagles. PROCEDURES: The cornea and conjunctiva of 16 eyes of 8 healthy young intact female beagles were imaged using FD-OCT. Corneal thickness was measured with FD-OCT and USP, while corneal epithelial thickness and conjunctival epithelial thickness were measured with FD-OCT...

IMPORTANCE: The Cornea Donor Study (CDS) showed that donor age is not a factor in survival of most penetrating keratoplasties for endothelial disease. Secondary analyses confirm the importance of surgical indication and presence of glaucoma in outcomes at 10 years. OBJECTIVE: To assess the relationship between donor and recipient factors and corneal graft survival in the CDS. DESIGN, SETTING, AND PARTICIPANTS: Multicenter prospective, double-masked, controlled clinical trial conducted at 80 clinical sites...

PURPOSE: The aim of this study was to assess the effect of donor and recipient factors on corneal allograft rejection and evaluate whether a rejection event was associated with graft failure. METHODS: One thousand ninety subjects undergoing penetrating keratoplasty for a moderate risk condition (principally Fuchs dystrophy or pseudophakic corneal edema) were followed for up to 12 years. Associations of baseline recipient and donor factors with the occurrence of a rejection event were assessed in univariate and multivariate proportional hazards models...

PURPOSE: The aim of this study was to recount the immense and abrupt change in the private and professional life of a prominent German-Jewish ophthalmologist in the transition from democracy to dictatorship in Germany during the first half of the 20th century. METHODS: This involves a Retrospective analysis of Fehr's clinical and scientific work as the first assistant of Julius Hirschberg's world-famous eye clinic in Berlin; evaluation of Fehr's successful tenure as a chair of Virchow's Eye Hospital; the catastrophic influence of Hitler's seizure of power on the private and professional lives of German-Jewish physicians; and an analysis of Fehr's personal and professional will to continue the practice of medicine in England...

Ocular surface disorders, such as dry eye disease, ocular rosacea, and allergic conjunctivitis, are a heterogeneous group of diseases that require an interdisciplinary approach to establish underlying causes and develop effective therapeutic strategies. These diverse disorders share a common thread in that they involve direct changes in ocular surface chemistry as well as the rheological properties of the tear film and topographical attributes of the cellular elements of the ocular surface. Knowledge of these properties is crucial to understand the formation and stability of the preocular tear film...

OBJECTIVE: To examine the effect of donor age and other perioperative factors on long-term endothelial cell loss after penetrating keratoplasty (PKP). DESIGN: Multicenter, prospective, double-masked clinical trial. PARTICIPANTS: We included 176 participants from the Cornea Donor Study cohort who had not experienced graft failure ≥ 10 years after PKP for a moderate risk condition (principally Fuchs' dystrophy or pseudophakic/aphakic corneal edema)...

OBJECTIVE: To determine whether the 10-year success rate of penetrating keratoplasty for corneal endothelial disorders is associated with donor age. DESIGN: Multicenter, prospective, double-masked clinical trial. PARTICIPANTS: A total of 1090 participants undergoing penetrating keratoplasty at 80 sites for Fuchs' dystrophy (62%), pseudophakic/aphakic corneal edema (34%), or another corneal endothelial disorder (4%) and followed for up to 12 years...

PURPOSE: To evaluate the microbial flora of eyes with a Boston Keratoprosthesis (K-Pro). METHODS: A prospective study was performed for 17 eyes of 15 patients who underwent a K-Pro implantation between September 2005 and June 2011. Preoperative diagnoses included failed corneal grafts, limbal stem cell deficiency, chemical burns, and Stevens-Johnson Syndrome. The patients used topical antibiotics after their surgery including a fluoroquinolone, polymyxin-trimethoprim, vancomycin, or a combination of the 3...

No abstract text is available yet for this article.

PURPOSE: To report the clinical utility of high-resolution anterior segment optical coherence tomography (AS-OCT) combined with in vivo confocal microscopy (IVCM) to diagnose and follow the effectiveness of treatment of 2 cases of epithelial downgrowth after penetrating keratoplasty. METHODS: A retrospective case review was performed on 2 eyes of 2 patients with a history of multiple penetrating keratoplasties that developed epithelial downgrowth 4 and 6 months after the most recent penetrating graft...