硝子体出血を生じたため硝子体手術を行った加齢黄斑変性の視力転帰

Visual outcome of age-related macular degeneration following vitrectomy for vitreous hemorrhage

要約　目的：加齢黄斑変性に併発した硝子体出血に対して硝子体手術を行った症例の視力経過の報告。対象と方法：過去3年間に硝子体出血に対して硝子体手術を行った加齢黄斑変性14例14眼を検索した。男性5例，女性9例で，年齢は60～89歳（平均72歳）である。原則として白内障手術を同時に行い，2～24か月（平均11か月）の経過を追った。術前視力は，2眼が0.2で，他は0.04以下であった。結果：最終視力は，指数弁以下が6眼，0.01～0.1が5眼，0.4～0.5が2眼，不明1眼であった。術前視力と比較し，6眼が2段階以上改善し，4眼が不変，3眼が悪化，1眼が不明であった。結論：加齢黄斑変性に併発した硝子体出血に対する硝子体手術で視力が改善することが多いが，良好な視力を得ることは困難である。

Abstract.　Purpose：To report the outcome of vitrectomy for vitreous hemorrhage in eyes of age-related macular degeneration（AMD）. Cases and Method：This retrospective study was made on 14 eyes of 14 cases who received vitrectomy for vitreous hemorrhage as complication of AMD during the past 3 years. The series comprised 5 males and 9 females. The age ranged from 60 to 89 years,average 72 years. All the eyes received cataract surgery simultaneously. Cases were followed up for 2 to 24 months,average 11 months. Visual acuity was 0.2 in 2 eyes and 0.04 or less in the rest. Result：Final visual acuity was counting fingers or less in 6 eyes,0.01 to 0.1 in 5 eyes,0.4 to 0.5 in 2 eyes,and unknown in one eye. Final visual acuity improved by 2 lines or more in 6 eyes,remained unchanged in 4 eyes,deteriorated in 3 eyes,and was unknown in one eye. Conclusion：Vitrectomy for vitreous hemorrhage in eyes of AMD may result in improved visual acuity,although to a certain degree.