Stopped: Due to unstalbe cell sheet quality. We didn't use this tech on patients.
Since cultivated autologous oral mucosal epithelial sheets on amniotic membrane have been reported to have good clinical results in treating patients with ocular surface disorders in both human or animal studies, and such technique has not been used in our hospital, the main purpose of this study is to use these cell sheets to treat patients with severe surface disorders, which include limbal insufficiency induced corneal surface problem, and symblepharon caused by severe conjunctival epithelial insufficiency. We will first choose patients who meet the surgical criteria, and these patients need to receive dental examination three months before surgery. Two weeks before transplantation, the oral mucosa tissue will be obtained by a dentist and the oral mucosal epithelial cell sheets will be cultivated on amniotic membrane until reaching confluency and stratification. During the transplantation surgery, the abnormal fibrovascular tissues on the ocular surface will be removed. The areas of symblepharon will also be released. The cultivated oral mucosal cell sheets will be transplanted on the denuded corneal surface or the scleral surface of the symblepharon area. Therapeutic contact lenses will be applied after surgery. After operation, the patients will be admitted for about two weeks. After discharge, the patients need to receive regular follow up weekly during the first two months, followed by biweekly follow up until postoperative 6 months. Afterward, the patients need to receive monthly follow up until postoperative 2 years. During the follow up, the data of the patients' visual acuity, intraocular pressure, slit lamp biomicroscopic findings, and in vivo confocal microscopic data will be obtained. The project plans to start from July 1st 2007 until June 30th 2010. We plan to enroll totally 20 patients.
Age range
18 Years – 80 Years
Sex
ALL
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
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Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
condition of ocular surface
Timeframe: 6 months