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要約 目的:眼鏡を必要としない良好な裸眼視力が得られるように,片眼に遠方・近方重視の2焦点眼内レンズ(IOL),他眼に焦点深度拡張(EDoF)IOLを挿入するMixed EDoFという手法で白内障手術を行い,3焦点IOLと比較した。
対象と方法:対象は55〜76歳のMixed EDoF群10例20眼,FINE VISION(PhysIOL社)群10例20眼,PanOptix®(Alcon社)群5例10眼。Mixed EDoF群は片眼にはZMB00(AMO社),他眼にはZXR00 TECNIS Symfony®またはZXV(AMO社)を挿入し,両眼で遠方・中間・近方が見えるように調整した。乱視例には角膜輪部実質内切開もしくはトーリックIOLを使用した。術前および術後の視力と屈折を測定し,満足度を調査した。また,同時期に行った3焦点IOLと比較検討した。
結果:対象とした全例で遠見の裸眼での両眼開放視力はlogMAR 0以上となり,中間70cmでlogMAR 0.155以上,近見30cmはlogMAR 0.1以上となり,3焦点IOLと遜色のない結果となった。良好な近方視が得られるなど両眼に異なるIOLを挿入しても各々の良い特性が現れ,満足度は高かった。
結論:Mixed EDoFは両眼でほとんど眼鏡を必要としない見え方となり,満足度も高いため,多焦点IOLの選択の1つとして有用な方法と考えられる。
Abstract Purpose:We performed cataract surgery with a technique called Mixed EDoF to insert a bifocal IOL or depth of focus extended IOL(EDoF:Extended Depth of Field)for good naked vision and compared it to the trifocal IOL.
Subjects and Method:The subjects were 20 patients in 10 cases of Mixed EDoF group from 55 to 76 years of age, 20 in the FINE VISION group, and 10 in the PanOptix group. The Mixed EDoF group was adjusted to see the distance, middle, and near by both eyes by inserting ZMB00(AMO)on one side and the ZXR00 TECNIS Symfony® on the other. Intrastromal incision or toric IOL was used for astigmatic eyes. Visual acuity and refractive power before and after surgery were measured. The degree of satisfaction was investigated. We compared and examined trifocal IOL.
Result:In all cases, the binocular vision was logMAR 0 or higher, logMAR 0.155 or higher at the middle 70 cm, and near 30 cm was logMAR 0.1 or higher. Even if IOL different from both eyes was inserted, the expression degree of satisfaction had each high good special quality.
Conclusion:Mixed EDoF is considered useful to select multiple-focus IOLs because they are both visible and uncomfortable with both eyes and are satisfied and are satisfied with each other.
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