視力予後が良好であった糖尿病黄斑浮腫の検討

Cases of diabetic macular edema with good visual outcome

（R2-7PM-7）　過去2年間に硝子体手術を行った糖尿病黄斑浮腫55例78眼を検索した。男性32例46眼，女性23例32眼であり，年齢は32歳から79歳，平均57.4歳であった。全例に汎網膜光凝固が行われており，手術時に後部硝子体剥離はなかった。術後6か月以上の経過観察で29眼（37.2％）が0.7以上の視力であった。これら29眼は，最終視力が0.7未満の49眼よりも，術前の視力が有意に良好であり（p＜0.001），硬性白斑もより軽度であった。良好な術後視力を得るためには，浮腫発生後に早期硝子体手術が必要であることが結論される。

We reviewed 78 eyes in 55 diabetic patients who underwent vitreous surgery for macular edema 2 years. The series comprised 32 males and 23 females. The ages ranged from 32 to 79 years, average 57.4 years. All the eyes had been treated by panretinal photocoagulation and no eye had posterior vitreous detachment at the time of surgery. After 6 months or longer following surgery, visual acuity of 0.7 or more was obtained in 29 eyes (37.2%). These eyes had significantly better visual acuity before surgery than the other 49 eyes which resulted in final visul acuity of less than 0.7 (p ＜ 0.001). Eyes in the former group showed lesser hard exudates than the latter. The findings show that early vitreous surgery is indicated in order to obtain good visual acuity in eyes with diabetic macular edema.