6 research outputs found
Use of hyaluronic acid gel filler to improve contact lens wear in patients with deep sunken superior sulcus
Purpose: Deep sunken superior sulcus of the upper eyelid can result from aging, genetic, prostaglandin use, and prior aggressive upper blepharoplasty. If severe, it can cause exposure keratopathy, lagophthalmos, and giant fornix syndrome. We herein report on another milder manifestation of deep superior sulcus and its treatments. Methods: Case report. Results: Deep sunken superior sulcus syndrome caused to soft contact lens displacement and wear intolerance and was treated with upper eyelid suclus hyaluronic acid gel injection. Conclusions: Contact lens wear intolerance is likely more common in patients with deep sunken superior sulcus syndrome and can potentially be treated with superior sulcus hyaluronic acid gel injection. Keywords: Eyelid filler, Sunken eye, Cosmetic eyelid surgery, Non-surgical, Contact lens, Hyaluronic acid ge
Isolation of Progenitor Cells from GFP-Transgenic Pigs and Transplantation to the Retina of Allorecipients
Work in rodents has demonstrated that progenitor transplantation can achieve limited photoreceptor replacement in the mammalian retina; however, replication of these findings on a clinically relevant scale requires a large animal model. To evaluate the ability of porcine retinal progenitor cells to survival as allografts and integrate into the host retinal architecture, we isolated donor cells from fetal green fluorescent protein (GFP)-transgenic pigs. Cultures were propagated from the brain, retina, and corneo-scleral limbus. GFP expression rapidly increased with time in culture, although lower in conjunction with photoreceptor markers and glial fibrillary acid protein (GFAP), thus suggesting downregulation of GFP during differentiation. Following transplantation, GFP expression allowed histological visualization of integrated cells and extension of fine processes to adjacent plexiform layers. GFP expression in subretinal grafts was high in cells expressing vimentin and lower in cells expressing photoreceptor markers, again consistent with possible downregulation during differentiation. Cells survived transplantation to the injured retina of allorecipients at all time points examined (up to 10 weeks) in the absence of exogenous immune suppression without indications of rejection. These findings demonstrate the feasibility of allogeneic progenitor transplantation in a large mammal and the utility of the pig in ocular regeneration studies
Nine loci for ocular axial length identified through genome-wide association studies, including shared loci with refractive error
10.1016/j.ajhg.2013.06.016American Journal of Human Genetics932264-277AJHG