1483 Micro-bypass stenting for open-angle glaucoma (in trabecular meshwork)

Page last updated: 05 March 2018

Application Detail



Description of Medical Service

A trabecular micro-bypass stent is a micro-invasive glaucoma surgery (MIGS) device used to treat patients with mild-to-moderate primary open-angle glaucoma (POAG), a previously unaddressed population in POAG surgical treatment. The device improves aqueous outflow through the natural physiologic pathway, the trabecular meshwork, thereby lowering intra-ocular pressure (IOP) and dependence on pressure-lowering topical medication. The procedure is generally performed as a day-stay procedure in an ophthalmology surgical setting, as a stand-alone treatment or in conjunction with cataract surgery.

Description of Medical Condition

Glaucoma is a chronic degenerative optic neuropathy in which the neuro-retinal rim of the optic nerve becomes progressively thinner, caused by an acquired loss of retinal ganglion cell axons and atrophy of the optic nerve. The lens and cornea of the eye both lack direct blood supply. Therefore, these anterior structures are nourished by a separate circulatory system. The aqueous humor, produced by the ciliary body, circulates throughout the anterior chamber and drains through the trabecular meshwork in the iridocorneal angle. Its primary role is to maintain intraocular pressure (IOP), and provide nutrients to the structures of the anterior and posterior chambers of the eye.

In open-angle glaucoma (OAG), the iridocorneal angle is unobstructed but aqueous outflow is diminished, leading to an elevation of intraocular pressure. Patients with glaucoma typically lose peripheral vision, and may suffer complete vison loss if not treated.

Reason for Application

New MBS item

Medical Service Type


Previous Application Number

Not Applicable

Associated Documentation

Application Form

Application Form (Word 7536 KB)
Application Form (PDF 964 KB)

PICO Confirmation

PICO Confirmation (Word 227 KB)
PICO Confirmation (PDF 794 KB)

Assessment Report


Public Summary Document

Public Summary Document (Word 377 KB)
Public Summary Document (PDF 669 KB)

Meetings for this Application


12 April 2017


5 October 2017


23 November 2017