Endothelial keratoplasty has been adopted by corneal surgeons worldwide as an alternative to penetrating keratoplasty (PK) in the treatment of corneal endothelial disorders. Since the first surgeries in 1998, different surgical techniques have been used to replace the diseased endothelium. Compared with penetrating keratoplasty, all these techniques may provide faster and better visual rehabilitation with minimal change in refractive power of the transplanted cornea, minimal induced astigmatism, elimination of suture-induced complications and late wound dehiscence, and a reduced demand for postoperative care. Translational research involving cell-based therapy is the next step in work on endothelial keratoplasty. The present review updates information on comparisons among different techniques and predicts the direction of future treatment.
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http://dx.doi.org/10.1590/s0004-27492012000600016 | DOI Listing |
Adv Healthc Mater
January 2025
Max Bergmann Center of Biomaterials Dresden, Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Str. 6, 01069, Dresden, Germany.
Cell-instructive polymer hydrogels are instrumental in tissue engineering for regenerative therapies. Implementing defined and selective responsiveness to external stimuli is a persisting challenge that critically restricts their functionality. Addressing this challenge, this study introduces a versatile, modular hydrogel system composed of four-arm poly(ethylene glycol)(starPEG)-peptide and glycosaminoglycan(GAG)-maleimide conjugates.
View Article and Find Full Text PDFCornea
January 2025
Eye Clinic Sulzbach, Knappschaft Hospital Saar, Sulzbach/Saar, Germany.
Purpose: To analyze the clinical outcome of organ-cultured endothelium-outward preloaded DMEK (pDMEK) using the RAPID cartridge.
Methods: This prospective study included 80 eyes of 80 patients who received a pDMEK. Best-corrected visual acuity (BCVA), endothelial cell count (ECC), and central corneal thickness were measured preoperatively and 4 to 6 weeks, 3 months, 6 months, and 1 year postoperatively.
Cornea
January 2025
Department of Ophthalmology, University of Düsseldorf, Germany.
Purpose: To evaluate outcome and incidence of ocular hypertension after Descemet membrane endothelial keratoplasty (DMEK) and DMEK combined with cataract surgery (triple DMEK) after Nd:YAG laser iridotomy (IO) and surgical iridectomy (IE).
Methods: This is a single-center, retrospective cohort study of patients who underwent DMEK or triple DMEK surgery at the Department of Ophthalmology, University Hospital Düsseldorf, Germany, from January 2018 to June 2020 and had received either a prophylactic preoperative IO or an intraoperative IE. Patient demographic data; best corrected visual acuity; central corneal thickness; intraocular pressure (IOP); endothelial cell density; and complications such as occurrence of early postoperative IOP elevation, macular edema, rebubbling rate, and incidence of glaucoma were analyzed.
Acta Ophthalmol
January 2025
Department of Ophthalmology, Faculty of Medicine, University of Cologne, Cologne, Germany.
Purpose: To analyse anterior segment optical coherence tomography (AS-OCT) parameters of graft dehiscence after Descemet membrane endothelial keratoplasty (DMEK) for graft failure post penetrating keratoplasty (PK).
Methods: Retrospective evaluation of AS-OCT images of 142 dehiscences post-DMEK in 75 eyes. Dehiscences' size, depth, location, correlation with graft-host interface (GHI) override and step at GHI were assessed.
Eye (Lond)
January 2025
Department of Ophthalmology, Tokyo Dental College Ichikawa General Hospital, Chiba, Japan.
Objective: To investigate the association between preoperative aqueous humour (AqH) cytokines and mid-term endothelial cell density (ECD) following penetrating keratoplasty (PKP).
Methods: This study analysed a total of 87 eyes of which 54 underwent PKP and 33 eyes underwent cataract surgery. AqH samples were collected at the beginning of surgery.
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