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要約 目的:加齢黄斑変性に対する光線力学療法の長期成績の報告。対象と方法:17か月間に光線力学療法を行った加齢黄斑変性35例35眼を対象とした。男性24例,女性11例で,年齢は50~90歳(平均75歳)である。治療後1~5年(平均3.8±1.5年)の経過を追った。視力はlogMARで評価した。結果:1年後では改善13眼(37%),不変15眼(43%),悪化7眼(20%)であり,3年後では改善8眼(31%),不変11眼(42%),悪化7眼(27%)であり,5年後では改善3眼(15%),不変10眼(50%),悪化7眼(35%)であった。結論:加齢黄斑変性に対する光線力学療法で,65%の症例で5年後の視力が維持された。効果は1年後,3年後,5年後の順に低下した。
Abstract. Purpose:To report the long-term visual outcome of photodynamic therapy(PDT)for age-related macular degeneration(AMD). Cases and Method:This retrospective study was made on 35 eyes of 35 cases who received PDT for AMD during a 17-month period. The series comprised 24 males and 11 females. The age ranged from 50 to 90 years, average 75 years. They were followed up for one to 5 years, average 3.8 years. Visual acuity was evaluated in terms of logMAR. Results:Visual acuity improved in 13 eyes(37%), remained unchanged in 15 eyes(43%), and deteriorated in 7 eyes(20%)one year after PDT. It improved in 8 eyes(31%), remained unchanged in 11 eyes(42%), and deteriorated in 7 eyes(27%)three years after PDT. It improved in 3 eyes(15%), remained unchanged in 10 eyes(50%), and deteriorated in 7 eyes(35%)five years after PDT. Conclusion:Visual acuity improved or was maintained in 65% of eyes five years after PDT for AMD. The beneficial effect decreased after one, three and five years in descending order.
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