部分带板层角膜巩膜植片偏中心治疗性穿透角膜移植

目的 探讨病变偏于一侧时穿透性角膜移植，保留健康角膜，降低排斥反应和减少角膜散光的方法。方法 病灶一侧制作偏中心板层角巩膜植床，切除病变。在供眼取相同位置植片，角巩膜交界处标记。对16例偏中心角膜病变患者实施带板层角膜巩膜植片偏中心穿透角膜移膜术。术后随访6月～2年。结果 12例移植片透明，11例裸眼视力0.1以上，其中6例0.4以上。结论 带板层角巩膜植片的偏中心治疗性穿透性角膜移植术，能有效地保留健康角膜，降低排斥反应和减少散光，且获取较佳视力。

Eccentric therapeutic penetrating corneal transplantation with partial lamellar corneoscleral rings

To study the effective ways to preserve health cornea,degrade rejection and control the postoperative corneal astigmatism in eccentric penetrating keratoplasty.Methods The eccentric corneal and partial lamellar corrneoscleral pathologic changes were marked and made on corneoscleral limbus of recipient bed.Afterward,the donor graft was cut down from a donor eye at corresponding position and sutured on the recipient bed.This technique was performed on 16 cases with eccentric corneal pathologic changes.Results The grafts of 12 eyes remained transparent.The visual acuities were obtained>0.1 in 11 cases in which >0.4 in 6 cases.Conclusion The eccentric penetrating keratoplasty with partial lamellar corneoscleral rings can effective preserve the health cornea,degrade rejection,reduce corneal astigmatism of postoperation and obtain satisfactory visual acuity.