線維柱帯切除術後の高次収差

Higher-order aberration following trabeculectomy

要約　目的：線維柱帯切除術後に生じた高次収差と関連因子の報告。対象と方法：男性21例，女性12例の33例33眼を対象とした。年齢は平均65歳である。全例に線維柱帯切除術を行い，28眼では水晶体再建術を同時に実施した。角膜形状測定は術前と術後96.6±63.1日目に行った。結果：全高次収差は0.367±0.163μm，コマ収差は0.210±0.144μm，矢状収差は0.181±0.124μm，球面収差は0.119±0.075μmであった。瞳孔径と全高次収差，瞳孔径と球面収差の間に正の相関があった。矢状収差が大きい例は，強膜弁縫合が5本以上の場合に多かった。結論：線維柱帯切除術の術後には高次収差が増加し，視力の質が低下する可能性がある。

Abstract.　Purpose：To report changes in higher-order aberration and related factors after trabeculectomy. Cases and Method：This retrospective study was made on 33 eyes of 33 cases consisting of 21 males and 12 females. The age averaged 65 years. All the cases received trabeculectomy. Lens reconstruction was simultaneously performed in 28 eyes. Keratometry was performed 96.6±63.1 days after surgery. Results：Total higher-order aberration averaged 0.367±0.163μm,coma aberration averaged 0.210±0.144μm,trefoil aberration averaged 0.181±0.124μm,and spherical aberration averaged 0.119±0.075μm. Total higher-order aberration and spherical aberration showed positive correlations with pupil diameter. Trefoil aberration was greater in eyes that received 5 or more sutures. Conclusion：Trabeculectomy may be followed by increased higher-order aberrations and by impaired quality of life.