BACKGROUND AND OBJECTIVES: Trabeculectomies usually fail early (< 21 d
ays) or late (> 6 months) when no antifibrotic agent is used. Failure
is uncommon during the midterm period, between 3 weeks and 6 months. T
he purpose of this study is to verify the incidence of failure of trab
eculectomies with mitomycin-C (MMC) during the midterm period and to e
valuate the safety and efficacy of laser suture lysis (LSL) for revers
ing it. PATIENTS AND METHODS: The authors reviewed the records of 130
consecutive patients who underwent trabeculectomy with adjunctive MMC.
RESULTS: Fourteen patients (15 eyes) had increased intraocular pressu
re (IOP), between 21 and 185 days (median 41 days). LSL was effective
in decreasing the IOP to acceptable levels in 10 (66.6%) of the 15 eye
s. No complications related to LSL were noticed. CONCLUSION: The rever
sibility of midterm failure seems to be a unique feature of trabeculec
tomies with MMC.