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全層角膜移植を過去に受けた眼に鈍的外傷が加わり,術創が離開した10例10眼を経験した。年齢は18~81歳,平均54.5歳であり,角膜移植から受傷までは11か月~20年,平均5年5か月であった。全例で角膜移植の術創が離開し,その範囲は90°~270°であった。水晶体または眼内レンズの脱出または脱臼が6眼,硝子体出血が5眼,網膜剝離が1眼に起こった。最終観察時に4眼では移植片が透明であり,3眼は眼球癆になっていた。受傷時に外傷を予防する措置を講じていたのは1例のみであった。全層角膜移植を受けた眼での外傷性創離開は重篤で予後不良であることが多く,患者と家族への外傷を予防する指導が望ましい。
We reviewed 10 eyes of 10 cases that had received penetrating keratoplasty in the past and that developed wound dehiscence following accidental blunt trauma. Their ages ranged from 18 to 81 years,average 54.5 years. The interval between keratoplasty and blunt trauma ranged from 11months to 20 years,average 5 years 5months. Dehiscence involved one to three quadrants along the wound of keratoplaty. Luxation of crystalline or intraocular lens developed in 6 eyes. Vitreous hemorrhage occurred in 5 eyes. Retinal detachment resulted in 1 eye. At the last follow-up,the graft remained transparent in 4 eyes. Phthisis bulbi involved 3 eyes. Only one patient took adequate care to avoid eye injury. Wound dehiscence by accidental trauma in eyes with previous penetrating keratoplasty tends to result in poor outcome. We ought to advocate patients and their family to try to prevent accidental injury.
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