Antonio Maria Fea

The gel stent reduces intraocular pressure (IOP) by channelling aqueous humour outflow to the subconjunctival space, similar to trabeculectomy (the gold-standard, most effective surgical option for IOP reduction). Analysis of a prospective, head-to-head, randomised, multicentre study comparing effectiveness and safety of the gel stent to trabeculectomy in primary open-angle glaucoma (POAG).

1. Introduction The term open-angle glaucoma covers a wide range of chronic and progressive optic neuropathies which have the loss of retinal ganglion cells and their axons in common, as well as the subsequent loss of the visual field [1]. Lowering intraocular pressure (IOP) is currently considered as the main known modifiable risk factor [2]. Topical hypotensive medication and selective laser trabeculoplasty are currently considered as the first treatment approaches in most patients [3].

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