[A pathological analysis of the causes of failure of filtration operation in 25 glaucomatous eyes].

Histopathological investigations were carried out in 25 glaucomatous eyes of 25 cases which had been enucleated because of the failure of the filtration operations. Among them, 3 cases with malignant melanoma of either choroid or anterior uvea were misdiagnosed pre-operatively, post-operative rupture of filtering blebs leading to acute suppurative endophthalmitis or chronic endophthalmitis occurred in 5 cases and fibrous proliferation or incarcerations of iris, ciliary body or lens material were found in the filtration incisions in some cases. The causes of the failure of the filtration operations in these cases were discussed.