Outcomes of ab interno trabeculectomy with the trabectome by degree of angle opening. Issue 7 (21st October 2014)

• Record Type: Journal Article
• Authors: Bussel, I I; Kaplowitz, K; Schuman, J S; Loewen, N A
• Is Part Of: British journal of ophthalmology. Volume 99:Issue 7(2015)
• Page Start: 914
• Page End: 919
• Publication Date: 2014-10-21
• Subjects: Glaucoma -- Treatment Surgery -- Anterior chamber -- Angle; Ophthalmology -- Periodicals; 617.7
• DOI: 10.1136/bjophthalmol-2014-305577
• Languages: English
• ISSNs: 0007-1161

Abstract

Abstract : Aim: To analyse ab interno trabeculectomy (AIT) with the trabectome and combined phacoemulsification with AIT (phaco-AIT) by Shaffer angle grade (SG). Methods: Prospective study of AIT and phaco-AIT with narrow angles of SG≤2 versus open angles ≥3. Outcomes included intraocular pressure (IOP), medications, complications, secondary surgery and success (IOP <21 mm Hg and >20% reduction without further surgery). Exclusion criteria were missing preoperative data and <1 year follow-up. Results: Of 671 included cases, at 1 year AIT SG≤2 (n=43) had an IOP reduction of 42% from 27.3±7.4 to 15.7±3.0 mm Hg (p<0.01) versus AIT SG≥3 (n=271) with an IOP reduction of 37% from 26.1±7.8 to 16.4±3.9 mm Hg (p<0.01). In phaco-AIT with SG≤2 (n=48), IOP was reduced 24% from 20.7±7.0 to 15.7±3.6 mm Hg (p<0.01) versus phaco-AIT with SG≥3 (n=309) with an IOP reduction of 25% from 22.6±6.4 to 17.0±3.4 mm Hg (p<0.01). There was no difference between SG≤2 and SG≥3 in reduction of IOP or medications, complications, secondary surgery and success rates (p>0.05). Conclusions: SG≤2 is not associated with worse outcomes in AIT or phaco-AIT.