Fig. 24 A. Thirty-five-year-old woman with diffuse macular edema and a visual acuity of 20/60. B. The midphase of the angiogram shows diffuse macular edema C. The late phase shows severe leakage and cystoid macular edema D. Grid treatment. E. The midphase of the angiogram done 4 months later shows minimal leakage. F. The late phase also shows minimal leakage. The visual acuity is 20/25.