全植床深板层角膜移植（full-bed deep lamellarkeratoplasty，FB—DLKP）是通过基质纤维钩取法口袋型暴露后弹力膜，再注入黏弹剂分离基质与后弹力膜层，全植床暴露后弹力膜，再移植冰冻供体的角膜移植技术^[1]。FB—DLKP技术的最大优...全植床深板层角膜移植（full-bed deep lamellarkeratoplasty，FB—DLKP）是通过基质纤维钩取法口袋型暴露后弹力膜，再注入黏弹剂分离基质与后弹力膜层，全植床暴露后弹力膜，再移植冰冻供体的角膜移植技术^[1]。FB—DLKP技术的最大优点在于能完整暴露整个植床的后弹力膜，穿孔发生率低，整个手术时间仅1h左右^[2-3]。现将手术方法介绍如下。展开更多
Deep anterior lamellar keratoplasty(DALK) has recently been introduced as an alternative procedure to penetrating keratoplasty(PK) for corneal pathologies not affecting the corneal endothelium. DALK does not rely on d...Deep anterior lamellar keratoplasty(DALK) has recently been introduced as an alternative procedure to penetrating keratoplasty(PK) for corneal pathologies not affecting the corneal endothelium. DALK does not rely on donor endothelium and requires less rigid criteria for donor corneal tissue quality. Therefore, DALK makes it possible to use donor corneas deemed unsuitable for PK. Furthermore, lamellar keratoplasty allows acellular corneal tissue to be transplanted. As a result, long-term preservation techniques are being revisited to increase the availability of donor corneas and subsequently alleviate constraints of availability, cost, storage, and transportation in many countries. The recent alterations in corneal transplantation techniques and hence the type of donor cornea tissues used for each technique, may require corneal surgeons and eye banks to reevaluate their selection criteria. The purpose of this systematic review is to present an updated analysis on the type and quality of donor corneas used for PK and DALK, assess the influence of donor and eye bank factors on the quality of donor corneas, and determine whether any of these donor factors affect clinical outcomes, complications, and graft survivals.展开更多
文摘全植床深板层角膜移植（full-bed deep lamellarkeratoplasty，FB—DLKP）是通过基质纤维钩取法口袋型暴露后弹力膜，再注入黏弹剂分离基质与后弹力膜层，全植床暴露后弹力膜，再移植冰冻供体的角膜移植技术^[1]。FB—DLKP技术的最大优点在于能完整暴露整个植床的后弹力膜，穿孔发生率低，整个手术时间仅1h左右^[2-3]。现将手术方法介绍如下。
基金Supported by The Ophthalmic Research Center,Shahid Beheshti University of Medical Sciences,Tehran,Iran
文摘Deep anterior lamellar keratoplasty(DALK) has recently been introduced as an alternative procedure to penetrating keratoplasty(PK) for corneal pathologies not affecting the corneal endothelium. DALK does not rely on donor endothelium and requires less rigid criteria for donor corneal tissue quality. Therefore, DALK makes it possible to use donor corneas deemed unsuitable for PK. Furthermore, lamellar keratoplasty allows acellular corneal tissue to be transplanted. As a result, long-term preservation techniques are being revisited to increase the availability of donor corneas and subsequently alleviate constraints of availability, cost, storage, and transportation in many countries. The recent alterations in corneal transplantation techniques and hence the type of donor cornea tissues used for each technique, may require corneal surgeons and eye banks to reevaluate their selection criteria. The purpose of this systematic review is to present an updated analysis on the type and quality of donor corneas used for PK and DALK, assess the influence of donor and eye bank factors on the quality of donor corneas, and determine whether any of these donor factors affect clinical outcomes, complications, and graft survivals.
