多焦点眼内レンズ挿入術の術後成績と満足度

Outcome and patient satisfaction after implantation of multifocal intraocular lens

要約　目的：両眼への多焦点眼内レンズ（IOL）挿入後の成績と患者の満足度の報告。対象と方法：両眼に白内障がある75例150眼を対象とした。年齢は60～78歳（平均64歳）である。中間視を優先する42例には屈折型IOL，近方視を優先する33例には回折型IOLを挿入した。術後3か月までの経過を追い，患者の満足度をアンケートで評価した。結果：裸眼視力は，遠方と近方では屈折型と回折型IOLとで有意差がなく，中間距離で前者が有意によかった（p＜0.05）。近方での見え方と夜間のグレアについての満足度は，回折型IOLで有意に高かった（p＜0.01）。結論：白内障手術で多焦点眼内レンズを挿入するときには，術前の患者の希望を考慮して眼内レンズを選択することで，術後の成績と満足度の向上が期待できる。

Abstract.　Purpose：To report the outcome and patient satisfaction following bilateral implantation of multifocal intraocular lens（IOL）. Cases and Method：This study was made on 150 eyes of 75 patients who received cataract surgery. The age ranged from 60 to 78 years,average 64 years. Refractive IOL was inserted in 42 cases who preferred vision in intermediate range. Diffractive IOL was inserted in 33 cases who preferred near vision. Cases were followed up for 3 months. Patient satisfaction was evaluated by questionnaire. Results：There was no difference between refractive and diffractive IOL regarding unaided visual acuity in the near and far distance. Visual acuity was better for intermediate distance in eyes inserted with refractive than diffractive IOL（p＜0.05）. Patients expressed more satisfaction regarding near vision and night-time glare when inserted with diffractive IOL（p＜0.01）. Conclusion：Proper selection of multifocal IOL by asking the patients' need is a key factor for outcome of surgery and patient satisfaction.