PMID- 35012000 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220114 IS - 2077-0383 (Print) IS - 2077-0383 (Electronic) IS - 2077-0383 (Linking) VI - 11 IP - 1 DP - 2022 Jan 4 TI - 360 degrees Ab-Interno Schlemm's Canal Viscodilation with OMNI Viscosurgical Systems for Open-Angle Glaucoma-Midterm Results. LID - 10.3390/jcm11010259 [doi] LID - 259 AB - PURPOSE: To evaluate the effectiveness of ab-interno microcatheterization and 360 degrees viscodilation of Schlemm's canal (SC) performed with OMNI viscosurgical system in open angle glaucoma (OAG) together or not with phacoemulsification. SETTING: Two surgical sites. DESIGN: Retrospective, observational. METHODS: Eighty eyes from 73 patients with mild to moderate OAG underwent ab- interno SC viscodilation performed with OMNI system. Fifty eyes (Group 1) underwent only SC viscodilation, while 30 eyes (Group 2) underwent glaucoma surgery + cataract extraction. Primary success endpoint at 12 months was an intraocular pressure (IOP) reduction higher than 25% from baseline with an absolute value of 18 mmHg or lower, either on the same number or fewer ocular hypotensive medications, without further interventions. Secondary effectiveness endpoints included mean IOP, number of medications and comparison of outcomes between groups. Safety endpoints consisted of best-corrected visual acuity (BCVA), adverse events (AEs), and subsequent surgical procedures. RESULTS: Primary success was achieved in 40.0% and 67.9% in Groups 1 and 2, respectively. Mean IOP at 12-month follow-up showed a significant reduction in both groups (from 23.0 to 15.6 mmHg, p < 0.001, and from 21.5 to 14.1, p < 0.001, in Groups 1 and 2, respectively). Mean medication number decreased in both groups (from 3.0 to 2.0, p < 0.001 and from 3.4 to 1.9, p < 0.001, in Groups 1 and 2, respectively). AEs included hyphema (2 eyes), mild hypotony (4 eyes), IOP spikes one month after surgery (1 eye). Twelve eyes (15.0%) required subsequent surgical procedures. No BCVA reduction was observed. CONCLUSIONS: Viscodilation of SC using OMNI viscosurgical systems is safe and relatively effective in reducing IOP in adult patients with OAG. FAU - Toneatto, Giacomo AU - Toneatto G AUID- ORCID: 0000-0001-8994-1947 AD - Department of Ophthalmology, University Hospital of Udine, 33100 Udine, Italy. FAU - Zeppieri, Marco AU - Zeppieri M AUID- ORCID: 0000-0003-0999-5545 AD - Department of Ophthalmology, University Hospital of Udine, 33100 Udine, Italy. FAU - Papa, Veronica AU - Papa V AD - Department of Ophthalmology, Policlinico "Citta di Udine", 33100 Udine, Italy. FAU - Rizzi, Laura AU - Rizzi L AUID- ORCID: 0000-0002-2470-3953 AD - Department of Economics and Statistics, University of Udine, 33100 Udine, Italy. FAU - Salati, Carlo AU - Salati C AD - Department of Ophthalmology, University Hospital of Udine, 33100 Udine, Italy. FAU - Gabai, Andrea AU - Gabai A AUID- ORCID: 0000-0002-3865-3336 AD - Department of Ophthalmology, University Hospital of Udine, 33100 Udine, Italy. FAU - Brusini, Paolo AU - Brusini P AUID- ORCID: 0000-0003-0855-5775 AD - Department of Ophthalmology, Policlinico "Citta di Udine", 33100 Udine, Italy. LA - eng PT - Journal Article DEP - 20220104 PL - Switzerland TA - J Clin Med JT - Journal of clinical medicine JID - 101606588 PMC - PMC8745878 OTO - NOTNLM OT - OMNI viscosurgical system OT - Schlemm's canal viscodilation OT - cataract extraction OT - minimally invasive glaucoma surgeries (MIGS) OT - open angle glaucoma (OAG) OT - trabeculotomy COIS- The authors declare no conflict of interest. EDAT- 2022/01/12 06:00 MHDA- 2022/01/12 06:01 PMCR- 2022/01/04 CRDT- 2022/01/11 01:16 PHST- 2021/11/09 00:00 [received] PHST- 2021/12/06 00:00 [revised] PHST- 2021/12/29 00:00 [accepted] PHST- 2022/01/11 01:16 [entrez] PHST- 2022/01/12 06:00 [pubmed] PHST- 2022/01/12 06:01 [medline] PHST- 2022/01/04 00:00 [pmc-release] AID - jcm11010259 [pii] AID - jcm-11-00259 [pii] AID - 10.3390/jcm11010259 [doi] PST - epublish SO - J Clin Med. 2022 Jan 4;11(1):259. doi: 10.3390/jcm11010259.