PURPOSE
To study the ocular surface in filtering blebs using impression cytology, comparing the bleb side and areas outside the bleb edges.
METHODS
Twelve filtering blebs of 8 patients were included: 4 cases of trabeculectomy without mitomycin C (MMC), 6 cases of trabeculectomy with MMC, and 2 cases of non-penetrating glaucoma surgery. Impression cytology specimens were taken from filtering b...