Descemet-stripping automated endothelial keratoplasty has revolutionized the treatment of corneal endothelial disease. This procedure requires the removal of the Descemet membrane (DM) and the endothelium from the recipient cornea. We describe a simple technique to perform descemetorrhexis using an ophthalmic viscosurgical device to fill the anterior chamber and using capsulorrhexis forceps to create a controlled, continuous curvilinear DM tear in 19 cases. Avoidance of tearing the DM out to the periphery reduces endothelial cell loss, decreases migration of central endothelium to deficient areas, and minimizes the risk for chronic corneal edema and peripheral bullous keratopathy.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.jcjo.2012.03.045 | DOI Listing |
Cell Rep Med
December 2024
Department of Ophthalmology, Keio University School of Medicine, Shinjuku-ku 160-8582, Tokyo, Japan; Department of Clinical Regenerative Medicine, Fujita Medical Innovation Center, Fujita Health University, Ota-ku, Tokyo 144-0041, Japan. Electronic address:
A first-in-human investigator-initiated clinical study of a corneal endothelial cell substitute (CLS001) derived from a clinical-grade induced pluripotent stem cell (iPSC) line shows improvement of visual acuity and corneal stromal edema, with no adverse events for up to 1 year after surgery for the treatment of bullous keratopathy. While preclinical tests, including multiple whole-genome analysis and tumorigenicity tests adhering to the Food and Drug Administration (FDA) draft guidelines, are negative, an additional whole-genome analysis conducted on transplanted CLS001 cells reveals a de novo in-frame deletion of exon22 in the EP300 gene. No adverse events related to the mutation are observed.
View Article and Find Full Text PDFCornea
January 2025
Department of Ophthalmology and Visual Sciences, Case Western Reserve University School of Medicine, University Hospitals Eye Institute, Cleveland, OH.
Purpose: Describe aims, methods, characteristics of donors, donor corneas and recipients, and potential impact of the Diabetes Endothelial Keratoplasty Study (DEKS).
Methods: The DEKS is a randomized, clinical trial to assess graft success and endothelial cell density (ECD) 1 year after Descemet membrane endothelial keratoplasty (DMEK) using corneas from donors with versus without diabetes in a 1:2 minimization assignment. Diabetes severity in the donor is assessed by medical history, postmortem HbA1c, and donor skin advanced glycation end-products and oxidation markers.
Cornea
January 2025
Eye Unit, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy.
Klin Monbl Augenheilkd
January 2025
Ophthalmology, Amsterdam UMC, Amsterdam, Netherlands.
Background: Refractory corneal edema is the foremost reason for endothelial corneal transplantation (EK) in the world. Descemet membrane endothelial keratoplasty (DMEK) and Descemet stripping automated endothelial keratoplasty (DSAEK) offer good clinical outcomes. However, human donor tissue is limited in availability and has a complex logistical chain.
View Article and Find Full Text PDFClin Ophthalmol
January 2025
Department of Pediatrics, Faculty of Medicine, Chulalongkorn University Bangkok, Bangkok, Thailand.
Purpose: To describe the demographic profile, clinical characteristics, and treatment trends of Fuchs endothelial corneal dystrophy (FECD) in Thai patients, reflecting the evolving landscape of corneal transplantation in this region.
Patients And Methods: This retrospective cohort study included 900 patients (1,743 eyes) diagnosed with FECD at a tertiary referral center in Thailand between January 2017 and June 2023. Demographic, clinical, and surgical data were analyzed, focusing on best-corrected visual acuity (BCVA), central corneal thickness (CCT), endothelial cell density (ECD), surgical interventions, and graft survival rate.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!