Purpose. To study prospectively the success rate, reasons of failure,
success of the repeated procedures, of NPDS with collagenplasty of the
intrascleral space. To determine the efficacy of using new porous collagen
implant.
Methods. Non-randomised perspective trial involving 364 patients with
uncontroled primary and secondary open-angle glaucoma. IOP, coefficient of
aquous outflow and visual. fields were analysed before and after surgery.Results. The
mean follow-up was 5, 8
years (3-14 years). The mean preoperative IOP was 31,8 mm Hg in POAG and
18,2 at 5-12 years after the surgery. Group with secondary OAG showed higher
percent of repeated procedure and YAG laser goniopuncture. Complete success
rate, defined as IOP lower than 21 mm Hg with and without medications was 73%
5-14 years of follow-up. 38% of them were examined after YAG-laser
goniopuncture ab interno and 15% of them were followed after repeated NPDS with
collagen implant. New implant was used in 31 case with 4-8 months of follow-up
in hard cases of OAG. In all those cases IOP was normalisedх
Conclusion. NPDS with collagenoplasty is an effective elegant technique with the very low percent of complications and can be used widely for the surgery of OAG. To increase the efficiency of surgery new collagen non-absorbal implant can be used.