the indications for vitrectomy were unresorbable vitreous haemorrhage ( 77 eyes , 62 % ) ( group a ) , central traction retinal detachment ( 21 eyes , 17 % ) ( group b ) , and a combination of both ( 26 eyes , 21 % ) ( group c ) .
C0154828
traction retinal detachment
C0015392
eyes