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要約 目的:高速回転切除装置を内在する硝子体手術装置の成績の報告。対象と方法:過去23か月間に硝子体手術を行った68眼を対象とした。増殖糖尿病網膜症25眼(36.8%),黄斑上膜11眼(16.2%),裂孔原性網膜剝離10眼(14.7%)などである。前半の40眼には在来の装置を用い,後半の28眼には高速回転装置を用いた。視力はlogMARで評価した。結果:術前の平均視力は,在来装置群1.02,高速回転群0.69で,術後視力はそれぞれ0.29と0.16であった。手術時間の平均は,それぞれ83.8分と74.2分であった。合併症として医原性裂孔がそれぞれ5.0%と3.6%に生じた。術後の低眼圧と網膜剝離はなかった。結論:高速回転切除装置を用いる硝子体手術の成績は,在来の装置と比較し,視力の転帰,手術時間,術中と術後の合併症について,差がなかった。
Abstract. Purpose:To compare the outcome of vitreous surgery using conventional and high-speed cutter. Cases:This study was made on consecutive 68 eyes that received vitreous surgery in the past 23 months. The series comprised proliferative diabetic retinopathy 25 eyes, epiretinal membrane 11 eyes, and rhegmatogenous retinal detachment 10 eyes among others. Initial 40 eyes were treated by conventional and the latter 28 eyes by high-speed cutter. Visual acuity was evaluated as logMAR. Results:Visual acuity averaged 1.02 in the conventional and 0.69 in high-speed group before surgery. It averaged 0.29 and 0.16 respectively after surgery. Duration of surgery averaged 83.8 and 74.2 minutes respectively. Iatrogenic retinal break developed in 5.0% and 3.6% of eyes respectively. Conclusion:There was no difference in outcome of vitreous surgery using conventional and high-speed cutter regarding postoperative visual acuity, duration of surgery or complications before and after surgery.
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