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Review
. 2016 Dec;5(2):135-146.
doi: 10.1007/s40123-016-0054-6. Epub 2016 Jun 17.

The New Era of Glaucoma Micro-stent Surgery

Demetrios T Manasses  1 , Leon Au  2
Affiliations
Review

The New Era of Glaucoma Micro-stent Surgery

Demetrios T Manasses et al. Ophthalmol Ther. 2016 Dec.

Abstract

Minimally invasive glaucoma surgery (MIGS) has been gaining popularity over the last decade. Although there is no strict definition for MIGS, all the new procedures share the common theme of intraocular pressure reduction with minimal tissue destruction, short surgical time, simple instrumentation and fast postoperative recovery. The use of glaucoma drainage implants has long been the traditional treatment for complex glaucoma, but a new wave of glaucoma micro-stents are now being manufactured with various materials designed to increase aqueous outflow via different channels. This review summarises the current published literature on these devices, including Sclemm's canal stents (iStent, Hydrus), Suprachoroidal stents (CyPass, iStent supra), and subconjunctival stents (Xen, Innfocus).

Keywords: Glaucoma; Micro-stents; Minimally invasive glaucoma surgery.

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Figures

Fig. 1
Fig. 1
Clinical picture of an iStent implanted in the angle
Fig. 2
Fig. 2
Clinical picture of Hydrus stent implanted into Schlemm’s canal
Fig. 3
Fig. 3
Anterior segment OCT image of an iStent Supra in situ with fluid in the suprachoroidal space
Fig. 4
Fig. 4
Colour photo showing a Xen implant subconjunctivally in the superior nasal quadrant
Fig. 5
Fig. 5
Comparison of the pressure-lowering effect of (1) combined phacoemulsification and iStent [2], (2) combined phacoemulsification and Hydrus [16], (3) CyPass alone [25], (4) XEN 45 alone [31], and (5) InnFocus alone [33]
Fig. 6
Fig. 6
Comparison of the reduction in number of medications following (1) combined phacoemulsification and iStent [2], (2) combined phacoemulsification and Hydrus [16], (3) CyPass alone [25], (4) XEN 45 alone [31], and (5) InnFocus alone [33]
See this image and copyright information in PMC

References

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