Pit-macular syndromeに対する治療経験

Therapeutic outcome in pit-macular syndrome

　Pit-macular症候群8例8眼の治療経過を光干渉断層計（OCT）を用いて評価した。乳頭縁にレーザー光凝固を行った3眼では，黄斑部網膜剥離と乳頭黄斑間の網膜分離は消失しなかった。硝子体内ガス注入を行った2眼では，網膜剥離の軽減ないしは黄斑外への移動があり，視力が改善した。硝子体手術にガスタンポナーデを併用した3眼では，網膜剥離と網膜分離が復位し，視力が改善した。硝子体牽引が本症の増悪因子であると考えられ，硝子体手術にガスタンポナーデの併用が治療の第一選択であると結論される。

We treated 8 eyes in 8 cases of pit-macular syndrome. An optical coherence tomography (OCT) was used in evaluating the clinical course. Three eyes received laser photocoagulation along the disc margin. Retinal detachment in the macular area and retinoschisis in the papillomacular area remained unchanged in these eyes. Two eyes were treated by intravitreal gas injection. Visual acuity improved following decrease or extramacular displacement of retinal detachment in these eyes. Three eyes received vitrectomy with gas tamponade. Visual acuity improved following reti-nal reattachment and disappearance of retinoschisis. These findings seemed to show that vitreous traction is a major factor in the progression of pit-macular syndrome. We advocate vitrectomy with gas tamponade as the first choice in the treatment of this syndrome.