小切開用眼内レンズのperimetric glare testによる検討

Appraisal of intraocular lenses for small incision cataract surgery by perimetric glare test

　5.5mm no holeレンズ，5.5×6.5mm　2holeレンズ，5×6mm no holeレンズ，2種のスリーピースシリコンレンズ移植群にper—imetric glare testを施行し，コントロール群（正常有水晶体眼）および6mm no hole群と比較してグレア障害の観点から小切開用眼内レンズの評価を行った。グレア障害の程度［degree］はコントロール群，6mm no hole群，シリコン群，5.5mm no hole群，楕円レンズ群の順に高度になり，範囲［extent］はコントロール群が最も狭く6mm　no hole群とシリコン群が次に広く，楕円レンズ群，5.5mm no hole群の順にさらに広くなった。自覚的にグレアを訴えた症例はシリコン群ではなかったが，5.5mm no hole群と2種の楕円レンズ群では各1例ずつみられた。

We performed perimetric glare test to evaluate glare disability in 12 normal phakic eyes and 40 eyes who underwent cataract surgery with intraocular lens implantation. The operated eyes received either of 6 different intraocular lenses: 6 mm no hole lens , 5.5 mm no hole lens, 5.5×6.5 mm 2 hole lens, 5.0×6.0 mm no hole lens and 2 types of three piece silicone lens. The degree of glare dis-ability was least in phakic eyes and increased, in the ascending order, in eyes with 6 mm no hole lens, 2 types of silicone lens, 5.5 mm no hole lens and 2 types of ovoid lens. The extent of glare disability was least in phakic eyes and increased, in the ascending order, in eyes with 6 mm no hole lens, 2 types of silicone lens, 2 types of ovoid lens and 5.5 mm no hole lens. Subjective glare disabilities were present in 1 case with 5.5 mm no hole lens, in 1 case with 5×6mm no hole lens and in another with 5.5× 6.5 mm 2 hole lens.