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Outcomes of ab interno trabeculectomy with the trabectome by degree of angle opening

2014; BMJ; Volume: 99; Issue: 7 Linguagem: Inglês

10.1136/bjophthalmol-2014-305577

1468-2079

Igor I. Bussel, Kevin Kaplowitz, Joel S. Schuman, Nils A. Loewen,

Ophthalmology and Eye Disorders

To analyse ab interno trabeculectomy (AIT) with the trabectome and combined phacoemulsification with AIT (phaco-AIT) by Shaffer angle grade (SG).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 20% reduction without further surgery). Exclusion criteria were missing preoperative data and <1 year follow-up.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 0.05).SG≤2 is not associated with worse outcomes in AIT or phaco-AIT.