Effect of Graft Shift Direction on Graft Detachment and Endothelial Cell Survival After Descemet Membrane Endothelial Keratoplasty
Conclusions: Graft shift direction in DMEK, especially inferior graft shift, affected the postoperative graft detachment rate. Superior graft shift had a beneficial effect on postoperative corneal endothelial values. These data suggest that inferior graft shift should be avoided in DMEK.
To analyze corneal neovascularization using anterior segment optical coherence tomography angiography (AS-OCTA) in patients following cultivated oral mucosal epithelial sheet transplantation (COMET).
ConclusionsThe study reveals a dynamic development of the eye bank over the last 30 years and emphasizes the importance of an active quality management in coping with the challenges of modern eye banking. The increasing trend of cornea collection and transplantation is a reflection of the needs and efforts towards treating and eliminating corneal blindness.
Conclusions: Although there are significantly fewer amounts of peripheral cells available after graft preparation for keratoplasty, these cells can still be used for endothelial cell culture due to their proliferative capability. The peripheral cells that are discarded after graft preparation can thus be utilized to increase the donor endothelial cell pool for regenerative treatments. PMID: 31428467 [PubMed]
Abstract Although liver transplantation is a potential effective cure for patients with end-stage liver diseases, this strategy has several drawbacks including high cost, long waiting list, and limited availability of liver organs. Therefore, stem cell-based therapy is presented as an alternative option, which showed promising results in animal models of acute and chronic liver injuries. ABCB5+ cells isolated from skin dermis represent an easy accessible and expandable source of homogenous stem cell populations. In addition, ABCB5+ cells showed already promising results in the treatment of corneal and skin injury....
We read with great interest the article “Effect of keratoconus severity on clinical outcomes after deep anterior lamellar keratoplasty” by Feizi and associates.1 The authors have brought out clarity on an essential aspect of keratoplasty in keratoconus, that is, the impact of clinical severity on the outcomes of deep anterior lamellar keratoplasty (DALK). However, there are a few concerns that we would like to highlight.
Abstract Limbal Stem Cell Deficiency (LSCD) is a painful and debilitating disease that results from damage or loss of the Corneal Epithelial Stem Cells (CESCs). Therapies have been developed to treat LSCD by utilizing epithelial stem cell transplants. However, effective repair and recovery depends on many factors, such as the source and concentration of donor stem cells, and the proper conditions to support these transplanted cells. We do not yet fully understand how CESCs heal wounds or how transplanted CESCs are able to restore transparency in LSCD patients. A major hurdle has been the lack of vertebrate models ...
Whether complement dysregulation directly contributes to the pathogenesis of peripheral nervous system diseases, including sensory neuropathies, is unclear. We addressed this important question in a mouse model of ocular HSV-1 infection, where sensory nerve damage is a common clinical problem. Through genetic and pharmacologic targeting, we uncovered a central role for C3 in sensory nerve damage at the morphological and functional levels. Interestingly, CD4 T cells were central in facilitating this complement-mediated damage. This same C3/CD4 T cell axis triggered corneal sensory nerve damage in a mouse model of ocular gra...
Conditions: Fuchs' Endothelial Dystrophy; Cataract Intervention: Drug: Netarsudil 0.02% Ophthalmic Solution Sponsor: Massachusetts Eye and Ear Infirmary Recruiting
Condition: Fungal Keratitis Intervention: Device: Lamellar keratoplasty-ABCcolla® Collagen Ophthalmic Matrix Sponsor: ACRO Biomedical Co. Ltd Recruiting