汎網膜光凝固による黄斑浮腫に対する追加黄斑凝固

Additional photocoagulation for macular edema following panretinal photocoagulation

　汎網膜光凝固の影響で黄斑浮腫が増悪し視力低下をきたした糖尿病網膜症症例について，追加黄斑凝固を施行した19眼と経過観察のみ行った33眼に分類し，視力経過について検討した。視力低下3か月後の視力改善は追加黄斑凝固群32％，観察群30％，12か月後はそれぞれ28％，32％であった。また，汎網膜光凝固開始前視力の12か月後の維持率は，追加黄斑凝固群33％，観察群36％であった。いずれの結果においても2群間に有意差はなく，追加黄斑凝固が必ずしも有効でないことが確認された。

We evaluated the effect of additional photocoagulation for progressive macular edema following panretinal photocoagulation in 19 eyes of diabetic retinopathy. Another series of 33 eyes with similar macular edema following panretinal photocoagulation was left without additional treatment. Twelve months later, the visual acuity improved in 28% of 19 eyes and in 32% of 33 eyes. The visual acuity before panretinal photocoagulation was achieved in 33% of 19 eyes and in 36% of 33 eyes. There were no significant differences between the two groups. The findings suggest that additional retinal photocoagulation is not effective for progressive macular edema following panretinal photocoagulation.