Revision of filtration surgery
J. S. Cohen, R. N. Shaffer, J. Hetherington Jr and D. Hoskins
Forty-one procedures were performed to revise malfunctioning filtering
blebs in 37 eyes. Thirty-two procedures were undertaken on underfiltering
blebs, seven on overfiltering blebs, and two on normally functioning but
otherwise unsatisfactory blebs. Revision procedures were successful in 24
of 32 underfiltering blebs, four of seven overfiltering blebs, and one of
two normally functioning but unsatisfactory blebs.
