白内障術後後嚢混濁の定量的評価

Quantitative evaluation of postoperative capsular opacity after cataract surgery

（18-G409-7）　前眼部撮影解析装置EAS 1000を用いて白内障術後の後嚢混濁の定量的評価を試みた。対象は術後に後嚢混濁を認めなかった37眼と線維性混濁またはElschnig型混濁を認めた34眼である。測定は0°から165°までを15°ごとに12方向からスリット撮影し，densitometry解析により平均density値を求め，これを細隙灯顕微鏡所見による混濁の程度分類と対比させた。線維性混濁，Elschnig型混濁ともに細隙灯顕微鏡所見による混濁度分類とdensity値はよく相関し，術後後嚢混濁の定量的測定にEAS 1000によるdensitometry解析は有用と考えられた。

We quantitated the posterior capsular opacity in 71 eyes after cataract surgery by using an anterior eye segment analysis system, EAS 1000. The posterior capsule was transparent in 37 eyes. Fibrotic opacification or Elschnig pearls was present in 34 eyes. Scheimpflug slit images were examined for each 12 sections from 0° to 165° . Average density value was derived from densitometric analysis and was then compared with the gradings of opacity level assessed by slitlamp biomicroscopy. The density values of eyes with fibrotic opacification or Elschnig pearls were well correlated with the gradings, showing the usefulness of the present anterior eye segment analysis system.