RESUMO
Limbal stem cell deficiency (LSCD) is a very challenging situation and difficult to manage. A great works and ideas were conducted over the past 50 years. Numerous surgical techniques were proposed. We are reporting more than a 20-year follow-up of a case of limbal autograft stem cell transplantation due to LSCD secondary to chemical injury.
Assuntos
Doenças da Córnea , Epitélio Corneano , Limbo da Córnea , Humanos , Doenças da Córnea/cirurgia , Autoenxertos , Seguimentos , Limbo da Córnea/cirurgia , Acuidade Visual , Âmnio/transplante , Transplante de Células-Tronco/métodos , Epitélio Corneano/transplanteRESUMO
PURPOSE: To assess intra-correlations between lens density based-on Scheimpflug Imaging System, power used during surgery, surgery duration, and endothelial cell loss in eyes with nuclear cataract. SETTING: Department of Ophthalmology, King Fahd Hospital of the University, Alkhobar, Saudi Arabia. DESIGN: Prospective cross-sectional observational study. METHODS AND MATERIAL: The objective lens density and endothelial cell density were measured using the Scheimpflug system and specular microscopy, respectively. Intra-operatively, all phacodynamic parameters and duration of the surgery were documented. RESULTS: This study of 62 patients (71 eyes) with a mean age of 58.56⯱â¯10.4â¯years. The mean Scheimpflug-measured lens density was 13.93⯱â¯3.27. The mean phacodynamic parameters, namely, power, ultrasound time, and elliptical motion were 13.63⯱â¯6.38, 1.27⯱â¯1.12, and 50.56⯱â¯50.06, respectively. There were a positive linear correlations between the Scheimpflug-measured lens density and phacodynamic parameters, power (AVG %), ultrasound time, and elliptical motion (râ¯=â¯0.501, râ¯=â¯0.620, and râ¯=â¯0.641, respectively; all Pâ¯<â¯.001), amount of endothelial loss (râ¯=â¯0.445, Pâ¯<â¯.001), and surgery duration (râ¯=â¯0.346; Pâ¯<â¯.01). Phacodynamic parameters were positively correlated with degree of endothelial loss (Pâ¯<â¯.01). The length of the surgery failed to show any correlation with damage happened to the endothelium (râ¯=â¯0.210, Pâ¯>â¯.05). CONCLUSION: A positive correlations were observed between Scheimpflug-measured lens density with phacodynamic parameters, surgery duration, and endothelial loss. A strong correlation was observed between the degree of endothelial cell loss and phacodynamic parameters but not with the length of the procedure.
RESUMO
Extraskeletal myxoid chondrosarcoma (EMC) is a rare soft tissue tumor. Numerous cases of EMC have been reported in different anatomical locations. There is currently only a single case of EMC of the orbit and that was reported in 1985. We report a second case of orbital EMC in a 34-year-old healthy male.