Table 1.
Physical properties of MIGS devices and approved indications for use.
| Instrument | Length (mm) | Luminal diameter (μm) | FDA approval | CE mark |
|---|---|---|---|---|
| Schlemm's canal devices | ||||
| Trabectome | NA∗ | NA∗ | 2004 | 2004 |
| ELT | NA∗ | NA∗ | Pending | 1998 |
| iStent | 1 | 120 | 2012 | 2004 |
| iStent inject | 0.36 | 230 | US IDE | 2010 |
| Hydrus | 8 | 185–292 | US IDE | 2011 |
| Suprachoroidal devices | ||||
| CyPass | 6.35 | 300 (inner) | 2016 | 2009 |
| 510 (outer) | ||||
| iStent Supra | 4 | 160 | US IDE | 2010 |
| Subconjunctival devices | ||||
| XEN-45 | 6 | 45 (inner) | 2016 | 2011 |
| 150 (outer) | ||||
| InnFocus | 8.5 | 70 | US IDE | 2012 |
ELT: excimer laser trabeculotomy; NA: not available; US IDE: US investigational device exception. ∗No device implantation required.