Octopus視野計TOP/white-on-white, blue-on-yellow, flicker strategyによる緑内障眼の測定比較

Comparison of white-on-white,blue-on-yellow and critical fusion frequency in glaucoma eyes by tendency-oriented perimetry strategy of Octopus perimeter

要約　目的：Octopus視野計の3種類の方法で緑内障眼を測定比較した報告。対象と方法：開放隅角緑内障26例26眼を対象とした。男性15例，女性11例で，平均年齢は59歳である。Octopus視野計のtendency-oriented algorismで，white-on-white（WW），blue-on-yellow（BY），flicker（CFF）で測定した。測定値はWWを基準として比較した。結果：3種の平均異常測定点数間に有意差がなかった。WWとの5％以下の一致率は，BYで66.3％，CFFで62.8％であり，0.5％以下ではそれぞれ62.8％，61.0％であった。結論：WWで検出した異常点のうち30～40％はBYまたはCFFで検出されず，両者の緑内障の視野異常検出度は必ずしも高いとはいえない。

Abstract.　Purpose：To compare findings by 3 methods by Octopus perimetry in glaucoma eyes. Cases and Method：This study was made on 26 eyes of 26 glaucoma patients comprising 15 males and 11 females. The age averaged 59 years. Octopus perimeter was used to document white-on-white（WW）,blue-on-yellow（BY）and critical fusion frequency（CFF）by tendency-oriented perimetry algorism. Findings by BY and CFF were compared with that by WW. Results：No significant differences were present among averaged depressed points by WW,BY and CFF. Correspondence by 5％ or less was 66.3％ between WW and BY and 62.8％ between WW and CFF. That by 0.5％ or less was 62.8％ and 61.0％ respectively. Conclusion：Perimetry by BY or CFF failed to show in 30％ to 40％ of abnormal points by WW. BY or CFF is not sensitive enough in the detection of glaucomatous visual field loss.