Objective To investigate the blood supply to sclera near the extrocular rectus end area by fluorescence angiogra -phy in rabbits , so as to provide evidence for the preservation of the sclera flap size in the implantation of artificial eye .Methods Ten healthy adult New Zealand white rabbits were used for the study and underwent evisceration .After excision of the optic nerve and the posterior sclera , sclerotomy was performed , but the sclera flap with four petals remained intact .Sodium fluorescin was injected into the auricular vein for the observation of staining in the deep sclera flap .Results Instantaneous staining range of scleral fluoresce by fluores-cence angiography was within 4 mm to 7 mm near the extraocular rectus muscle end area .Conclusion In the hydroxyapatite orbital im-plantation, the small autoscleral flap with extraocular rectus muscle should be preserved to prevent the implant from exposure .%目的 通过荧光造影了解兔眼巩膜深层眼动脉肌支血供范围,为巩膜花瓣状成形羟基磷灰石义眼台植入术中保留巩膜瓣的大小提供依据.方法 将10只健康新西兰白兔眼内容物剜除,剪除视神经及后极部巩膜壳,做保留4条直肌的巩膜瓣,经耳缘静脉行荧光造影,观察深层巩膜瓣的荧光素瞬间着染范围.结果 采用荧光造影的方法观察到兔巩膜深层的荧光素瞬间着染的范围为眼外肌止端附近约4~7 mm范围内.结论 兔眼巩膜花瓣状成形羟基磷灰石义眼台植入术中应保留带眼外肌止端附近约4~7 mm的小巩膜瓣以预防义眼台外露.
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