in patients with type i diabetes , who were on the average younger and had more-severe proliferative retinopathy , there was a clear-cut advantage for early vitrectomy , as reflected in the percentage of eyes recovering visual acuity of 10/20 or better ( 36 % vs 12 % in the deferral group , p = .0001 ) .
C0042903
vitrectomy
C0015392
eyes