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要約 目的:滲出型加齢黄斑変性(AMD)に対する光線力学療法(PDT)の長期成績の報告。対象と方法:AMDに対してPDTを行い,4年以上の経過を追った42例42眼を対象とした。男性36例,女性6例で,年齢は50~86歳(平均71歳)である。28例には狭義のAMD,14例にはポリープ状脈絡膜血管症(PCV)があった。結果:視力の維持または改善は,1年後には31眼(74%),4年後には25眼(61%)にあった。狭義AMDとPCVとで,治療成績に有意差はなかった(p>0.05)。治療後6か月以内の再発は,狭義のAMD群で有意に多かった(p=0.047)。結論:AMDに対するPDTの成績は治療1年後では高いが,4年後には低下する。日本人のAMDに対するPDTの効果は必ずしも良好でない。
Abstract. Purpose:To report the long-term outcome of photodynamic therapy(PDT)for exudative age-related macular degeneration(AMD). Cases and Method:This retrospective study was made on 42 eyes of 42 patients who received PDT for AMD and who were followed up for 4 years or longer. The series comprised 36 males and 6 females. The age ranged from 50 to 86 years,average 71 years. AMD in the strict sense was present in 28 eyes and polypoidal choroidal vasculopathy(PCV)in 14 eyes. Results:Visual acuity improved or remained unchanged in 31 eyes(74%)after one year and in 25 eyes(61%)after 4 years. There was no difference in the outcome between PVD and AMD in the strict sense(p>0.05). Recurrence within 6 months after PDT was more frequent in eyes with AMD in the strict sense than PCV(p=0.047). Conclusion:PDT induces improvement or maintenance of visual acuity in many eyes with AMD after one year and in lesser number of eyes after 4 years. The findings seem to suggest that PDT may be less effective for AMD in the Japanese than in Caucasians.
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