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    (A) Type 1 (insulin dependent) diabetic patient with severe neovasculization and background changes. This type of patient and eye needs aggressive scatter treatment. Initial scatter treatment of 1000 spots was placed, but patient did not return for 3 months. (B) Despite additional treatment, after patient returned, traction and ischemia resulted in light-perception vision. It is unknown whether more treatment earlier would have salvaged sight in this severely involved eye. (C) Fellow eye had severe background changes and minimal NVE. Because of fulminant course of patient's left eye, scatter treatment was started. (D) Despite initial scatter treatment of 1400 hours, NVE was still present 6 weeks later and early NVD was developing.