片眼特発性黄斑円孔症例のHaidinger's brushesの認知形態

Pattern of perception of Haidinger brushes by patients with unilateral idiopathic macular hole

要約　目的：特発性黄斑円孔患者での患眼と健眼によるHaidinger brushの認知形態の比較。対象と方法：特発性黄斑円孔に対する硝子体手術を受けた20例20眼を対象とした。男性6例，女性14例で，年齢は52～71歳（平均64歳）である。Haidinger brushの認知形態をコージナトールで調べ，視力と光干渉断層計の所見を術前後で比較した。結果：Haidinger brushの認知は，術前後を通じ，不可，ぼける，中心欠損，ずれる，正常の5型があり，経過を通じて一定の段階を踏む傾向があった。手術から6か月以上が経過した症例の視力は良好で，すべて“ずれ”または“正常”になった。Haidinger brushの認知形態と光干渉断層計による所見には相関がなかった。結論：特発性黄斑円孔でのHaidinger brushの認知形態は，黄斑円孔の治癒過程と連動している可能性がある。

Abstract.　Purpose：To report the pattern of perception of Haidinger brushes by patients with unilateral idiopathic macular hole before and after surgery. Cases：This study was made on 20 patients with unilateral idiopathic macular hole. The series comprised 6 males and 14 females. The age ranged from 52 to 71 years,average 64 years. Pattern of perception of Haidinger brushes was examined by a coordinator. Patients were also examined regarding visual acuity and findings by optical coherence tomography（OCT）. Results：There were 5 patterns of perception of Haidinger bruches：invisible,blurred,lack of center,eccentric and normal. All the cases gained good visual acuity 6 months after surgery and reported either eccentric or normal. There was no correlation between findings by Haidinger brush and OCT. Conclusion：Pattern of perception of Haidinger brushes could be divided into 5 types in eyes with idiopathic macular hole. There was a fixed step in the recovery of foveal function after surgery.