Table 2

(A) Primary outcome for IOP 6–21 mmHg at 1 year; (B) reasons for treatment failure

(A) Primary outcomeNo of eyes (%)
Complete success54 (51.9)
Qualified success17 (16.4)
Failure33 (31.7)
(B) Reasons for failureTotal no (%)
IOP >21 mmHg14 (13.5)
<20% IOP reduction24 (23.1)
IOP ≤5 mmHg with vision loss on two consecutive visits0
Reoperation for glaucoma14 (13.5)
Loss of light perception vision0
  • IOP, intraocular pressure.