オクトパス視野計に備えられたTendency Oriented Perimetryの臨床評価

Clinical evaluation of Tendency Oriented Perimetry in Octopus perimeter

（B9-2-12）　Tendency Oriented Perimetry（TOP）はオクトパス視野計に備えられた新しい閾値測定法である。今回TOPによる視野計測を行い，その臨床評価を行った。対象は正常者40例40眼，高眼圧症患者9例9眼，緑内障患者40例64眼で，全症例に対してOCTOPUS1-2-3のG1XプログラムをNormal　strategy （NS）とTOPで行った。NSと比べたTOPの測定時間短縮率は平均86.9％であった。Mean　defect （MD），loss vaiance （LV）の比較では，MDに差がなく，TOPのLVが有意に小さくなった（p＜0.0001）。TOPは短時間で閾値計測が可能で検査効率が高いが，視野の形状を捉らえにくい検査法と思われた。

We evaluated the clinical value of Tendency Oriented Perimetry (TOP) built in the Octopus 1-2-3 perimeter. A total of 113 eyes were tested, comprising 40 eyes of 40 normal persons, 9 eyes of 9 cases with ocular hypertension and 64 eyes of 40 cases with glaucoma. All the eyes were also tested by program G1X of the perimeter using Normal strategy (NS). The testing time with TOP averaged 13.1% of that with NS. There was no difference in mean defect between TOP and NS. The loss variance was signficantly lower for TOP than NS (p ＜0.0001). The findings show that perimetry with TOP results in shorter testing time and that TOP is more efficient than NS. TOP has the disadvantage in describing the shape of the visual field.