未熟児網膜症瘢痕期の裂孔原性網膜剥離

Rhegmatogenous retinal detachment in cicatricial stage of retinopathy of prematurity

（19-c-4）　未熟児網膜症の瘢痕期に発症した網膜剥離6例を過去17年間に経験した。すべて片眼性であり，年齢は9歳から33歳，平均17歳であった。未熟児網膜症の急性期の治療が2例で行われていた。裂孔の位置は全例で耳側にあり，多発裂孔が多かった。全例に手術を行い，4例では再手術を必要とし，最終的な復位が3眼で得られた。網膜裂孔は未熟児網膜症の急性期に行われた網膜凝固が原因である例があった。初回の網膜陥凹術で復位しても，前部増殖硝子体症または多発性の新裂孔の形成がときにあり，長期の経過観察が必要である。

We observed rhegmatogenous retinal detachment in 6 cases with cicatricial stage of retinopathy of prematurity during the foregoing 17 years. All the cases were unilaterally affected. The ages ranged from 9 to 33 years, average 17 years. Two cases had been treated by cryo or photocoagulation during the active stage of retinopathy. The retinal break was frequently multiple and was located in the temporal periphery in all the eyes. Surgery was performed on all the eyes. Four eyes necessitated another surgery. Final reattachment was obtained in 3 eyes (50%) . The retinal break appeared to be associated with prior retinal coagulation in some eyes. We advocate longer follow up in cases of retinal detachment during the cicatricial stage of retinopathy because of possible anterior proliferative vitreoretinopathy or new formation of multiple retinal breaks.