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Complications of micro-invasive glaucoma surgery
Eunmee Yook1, Kateki Vinod, Joseph F Panarelli
1Department of Ophthalmology, New York Eye and Ear Infirmary of Mount Sinai and Icahn School of Medicine at Mount Sinai, New York, New York, USA.
Micro-invasive glaucoma surgery (MIGS) offers a safer alternative to traditional procedures. While complications like elevated intraocular pressure (IOP) can occur, they are generally infrequent and transient, with hypotony resolving conservatively.
Area of Science:
- Ophthalmology
- Glaucoma Surgery
- Medical Device Safety
Background:
- Micro-invasive glaucoma surgery (MIGS) is increasingly adopted due to its favorable safety profile compared to traditional incisional glaucoma surgery.
- Despite minimal tissue trauma, MIGS procedures carry unique potential complications.
Purpose of the Study:
- To review the safety profiles of Schlemm's canal, suprachoroidal, and subconjunctival microstents.
- To summarize evidence from 2016-2017 regarding MIGS safety.
Main Methods:
- Review of scientific literature from 2016-2017.
- Analysis of complication data for various MIGS devices.
Main Results:
- Ab-interno microstent malpositioning can lead to obstruction and reduced efficacy.
- Acute elevated intraocular pressure (IOP) rates varied among devices (e.g., Xen Gel Stent 21.5%).
- Hypotony was mostly transient, resolved conservatively, and did not cause vision loss.
Conclusions:
- MIGS is gaining popularity for early-stage glaucoma intervention.
- Complications, though infrequent and mostly transient, are associated with MIGS procedures.
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