نتایج جستجو برای: corneal transplantation
تعداد نتایج: 169524 فیلتر نتایج به سال:
Purpose: To evaluate the long-term outcome of limbal stem cell transplantation (LSCT) for the management of total limbal stem cell deficiency (LSCD) due to chemical burn in Labbafinejad Medical Center (LMC). Methods: Records of patients with a history of severe (i.e. grade III and IV) chemical burns, who were referred to LMC and underwent LSCT, were reviewed and data including demographic chara...
introduction epithelial rejection typically begins in a linear pattern from the periphery of the graft and progresses centripetally. here in, we reported a patient with a new presentation of corneal epithelial graft rejection. case presentation a 23-year-old man presented with blurred vision two months after penetrating keratoplasty. conclusions slit lamp examination revealed sharply demarcated...
extractdefective corneas are the leading cause of blindness world wide and the second leading cause, after diabetic retinopathy,of blindness in the united state , afflicting 30000 americans each year. happily, nearly 95 percent of those who have corneal transplantations( in 1985 they numbered,26300) regain their sight. the cornea is a transparent, a vascular, dim-sized tissue continious with th...
abstract background: keratoconus is a bilateral corneal disease, which one way to cure it is to transplant. the transplantation may be rejected by recipient's immune system, which leads to failure of the graft. this study aimed to analysis the factors affecting bilateral corneal graft rejection based on copula function. methods: a sample of bilateral graft rejection times was assessed. since co...
purpose: to report the early results of transplantation of autologous limbal stem cell cultivated on amniotic membrane in total limbal stem cell deficiency. methods: four eye of 4 patients with total unilateral stem cell deficiency secondary to severe chemical or thermal burn were included. stem cell deficiency was confirmed with impression cytology in all cases. under topical anesthesia, a sma...
Purpose: To report a 3-decade eye bank data and activity of the Central Eye Bank of Iran (CEBI). Methods: All the eye bank records in terms of procured eyes, utilized tissues, corneal transplants per capita, and indications for keratoplasty over the last 3 decades were analyzed. Results: During the last 27 years, 115 743 whole eyes were donated, among which 114 169 eyes were donated between 199...
The cornea is the most commonly transplanted tissue in the body. Although corneal grafts generally have high success rates, transplantation onto inflamed and vascularized host beds, or so-called high-risk corneal transplantation, has a high rate of graft rejection. The management of this high-risk corneal transplantation is challenging and involves numerous measures. One of the key measures to ...
PURPOSE Amniotic membrane transplantation is currently being used as an alternative approach to treat severe corneal surface disorders refractory to medical therapy. The authors report complications of corneal surface disorders after successful amniotic membrane transplantation. METHODS Case series. RESULTS Twenty-eight patients with corneal surface disorders due to severe chemical burns, c...
PURPOSE To discuss the importance of ocular surface management in corneal transplantation, especially in limbal transplantation. METHODS Since the corneal epithelium is not completely recovered after corneal transplantation, meticulous attention should be paid to the ocular surface to prevent infection and rejection, which are the major causes of corneal transplantation failure. Preoperative ...
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