穿孔性眼外傷における硝子体手術と超音波検査

Ultrasonography and vitrectomy in penetrating eye injuries

　穿孔性眼外傷100例100眼に超音波検査を行い，うち73眼に硝子体手術を行った．100眼のうち16眼は超音波所見に異常を認めず，残り84眼には網膜剥離がのべ46眼，硝子体出血が43眼，硝子体の増殖性変化が39眼にみられた．超音波所見に異常がない例は受傷後期間が7日以内の例に多く，それ以降の例には稀であった．増殖性変化は受傷後8日以降の例に頻度が高く，網膜剥離は14日以降高頻度となり30日以降と90日以降では差がなかった．73眼の硝子体手術の結果56眼（76％）の視力は改善または不変で，41眼（56％）は0,1以上の視力をえた．このうち網膜剥離を伴わない38眼では視力の改善，不変は34眼（89％），0.1以上は30眼（78％）であったが，網膜剥離を伴う35眼ではそれぞれ22眼（62％），11眼（2896）であり予後に差を認めた．

We evaluated a series of 100 cases with penetrat-ing eye injury and ultrasonography record due to opaque ocular media. Ultrasonography revealed retinal detachment in 46 eyes, vitreous hemorrhage in 43 and proliferative vitreous changes in 39. No ultrasonographic abormality was found in 16 eyes, of which 13 eyes were examined within 14 days after injury. Retinal detachment increased in inci-dence when examined 15 days or later after injury.

A total of 73 eyes were eventually treated by vitrectomy. A good final visual outcome, or final visual acuity of 0.1 or more, resulted in 30 of 38 eyes (78%) with retinal detachment, and in 11 of 35 eyes (28%) with retinal detachment.