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Purpose  Pseudoexfoliation syndrome is common in elderly patients and is associated with intraocular pressure elevation. Goniowash is a novel surgical technique to remove pseudoexfoliation material from the irido-corneal angle to decrease intraocular pressure. We assessed the long-term efficacy of Goniowash on relevant parameters in patients with pseudoexfoliation syndrome, after cataract surgery.    Methods  The study enrolled 122 patients with pseudoexfoliation syndrome, who underwent routine cataract surgery combined with Goniowash. Best-corrected visual acuity, intraocular pressure and medication status were recorded in study participants during 5 years of follow-up.    Results  Data from 190 eyes (122 patients of average age 73.8 ± 7.7 years) were assessed. Mean best-corrected visual acuity increased from 0.60 to 1.0 ( p  < 0.001) one year after surgery and remained stable throughout the follow-up. Average intraocular pressure decreased from 26.4 ± 7.3 mmHg pre-operatively to 15.9 ± 3.0 mmHg post operatively at one year ( p  < 0.001), 16.1 ± 3.3 mmHg ( p  < 0.001) at 3 years and 16.8 ± 2.9 ( p  < 0.001) at 5 years. Mean number of ocular hypotensive medications decreased from 1.5 ± 0.8 pre-operatively to 0.4 ± 0.7 post-operatively (75% reduction) ( p  < 0.001). No unexpected and severe adverse events related to the surgical procedure were reported.    Conclusions  Goniowash combined with cataract surgery provides stable and long-lasting reduction of intraocular pressure and hypotensive medications. It is a safe procedure and may be an alternative for patients with pseudoexfoliation syndrome and elevated intraocular pressure.

Goniowash: a new surgical approach combined with cataract surgery to lower intraocular pressure in pseudoexfoliation syndrome